Re: [PHP] Re: [PHP-DEV] PHP 5.5.0 final has been released!

2013-06-21 Thread Ravi Gehlot
Awesome!


On Thu, Jun 20, 2013 at 11:14 PM, Marco Pivetta ocram...@gmail.com wrote:

 Well done! Congratulations!
 On 20 Jun 2013 23:23, Julien Pauli jpa...@php.net wrote:

  Hello!
 
  The PHP Development Team would like to announce the immediate release of
  PHP 5.5.0. This release includes a large number of new features and bug
  fixes.
 
  A separate release announcement is also available. For changes in PHP
  5.5.0 since PHP 5.4, please consult the PHP 5 ChangeLog.
 
  Release Announcement: http://www.php.net/release_5_5_0.php
  Downloads:http://www.php.net/downloads.php#v5.5
  Changelog:http://www.php.net/ChangeLog-5.php#5.5.0
 
  Thanks to all contributors that made this new version available.
 
  regards,
 
  David Soria Parra  Julien Pauli
 



Re: [PHP] Accessing Files Outside the Web Root

2013-03-14 Thread Ravi Gehlot
Hello Dale,

The spiders are not the only problem. The issue here is that anyone can
download your files from your website and then make them available
elsewhere. In order to address the problem, you should create a Members
Restricted Area where members only could download your files. You can then
make your PDF directory only visible through your Members Restricted Area.
That directory would be invisible to the web. In some Linux distros, if the
file/directory is not a member of www-data, it is not visible online. But
you can still link the files to your PHP page.

Ravi.

On Wed, Mar 13, 2013 at 4:38 PM, Dale H. Cook
radiot...@plymouthcolony.netwrote:

 Let me preface my question by noting that I am virtually a PHP novice.
 Although I am a long-time webmaster, and have used PHP for some years to
 give visitors access to information in my SQL database, this is my first
 attempt to use it for another purpose. I have browsed the mailing list
 archives and have searched online but have not yet succeeded in teaching
 myself how to do what I want to do. This need not provoke a lengthy
 discussion or involve extensive hand-holding - if someone can point to an
 appropriate code sample or online tutorial that might do the trick.

 I am the author of a number of PDF files that serve as genealogical
 reference works. My problem is that there are a number of sites which are
 posing as search engines and which display my PDF files in their entirety
 on their own sites. These pirate sites are not simply opening a window that
 displays my files as they appear on my site. They are using Google Docs to
 display copies of my files that are cached or stored elsewhere online. The
 proof of that is that I can modify one of my files and upload it to my
 site. The file, as seen on my site, immediately displays the modification.
 The same file, as displayed on the pirate sites, is unmodified and may
 remain unmodified for weeks.

 It is obvious that my files, which are stored under public_html, are being
 spidered and then stored or cached. This displeases me greatly. I want my
 files, some of which have cost an enormous amount of work over many years,
 to be available only on my site. Legitimate search engines, such as Google,
 may display a snippet, but they do not display the entire file - they link
 to my site so the visitor can get the file from me.

 A little study has indicated to me that if I store those files in a folder
 outside the web root and use PHP to provide access they will not be
 spidered. Writing a PHP script to provide access to the files in that
 folder is what I need help with. I have experimented with a number of code
 samples but have not been able to make things work. Could any of you point
 to code samples or tutorials that might help me? Remember that, aside from
 the code I have written to handle my SQL database I am a PHP novice.

 Dale H. Cook, Member, NEHGS and MA Society of Mayflower Descendants;
 Plymouth Co. MA Coordinator for the USGenWeb Project
 Administrator of http://plymouthcolony.net


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Re: [PHP] [ad] [free+opensource] htmlMicroscope (nested array viewer/dumper) upgraded - now allows for even larger arrays

2013-03-04 Thread Ravi Gehlot
I like PHPUnit for that matter. It does a good job of debugging.

Ravi.


On Sat, Dec 22, 2012 at 8:41 AM, rene7705 rene7...@gmail.com wrote:

 Hi Folks.

 URL: http://fancywebapps.com/products/htmlMicroscope

 Just wanted to let you all know that I've completed a long overdue
 upgrade to my free htmlMicroscope web component.
 It is basically a fancy replacement for var_dump() which can show you
 the full depth of an array regardless of how large or deep your PHP
 array or javascript object is.

 I won't repeat the entire homepage content here, but I think this
 version could be useful for at least some of the programmers on this
 list.

 I'll only repeat this message for significant updates.

 This is a significant update because I've finally cracked the barrier
 of displaying an object with more than a few hundred key-value pairs
 on a single level. That used to crash all browsers, not anymore.

 i'll continue work on this, want to build in (in order of priority):
 - auto navigation options (auto smooth scroll to links within the data)
 - middle mouse button click - smooth offset scrolling
 - html source view
 - auto indented and colorcoded syntax-checked view for html + json

 Merry Christmas and a productive New Year to ya'll :D

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Re: [PHP] static Logging class?

2013-03-03 Thread Ravi Gehlot
Hello Lars,

I would apply the Singleton Pattern where you would have 1 instance for you
entire application. As far as whether or not to use a static method, I
would weigh the options. If you just want to call a method that you know
will not have to be changed in the future and that method will not be using
any pre-defined properties, then it makes sense to call a static method.
Bear in mind that static methods can not be overridden.

Best of luck,

-
  [image: logo]
*Ravi Gehlot
*
Mobile: 407-283-5282
Orlando, FL 32765-8085
http://www.RaviGehlot.Net/
https://github.com/ravigehlot

*First, solve the problem. Then, write the code.*
[image: Twitter] http://www.twitter.com/ravigehlot [image:
LinkedIn]http://www.linkedin.com/in/ravigehlot [image:
Amazon]https://www.amazon.com/gp/pdp/profile/A35NGY72YZSFR7?ie=UTF8ref_=ya_56
[image:
Meetup] http://www.meetup.com/members/12029903/ [image:
pinterest]http://pinterest.com/ravigehlot/ [image:
reddit] http://www.reddit.com/user/ravigehlot/
Contact me: [image: Google Talk] ravigehlot [image: Skype] ravigehlot [image:
Y! Messenger] ravigehlot


On Sun, Mar 3, 2013 at 8:26 AM, Lars Nielsen l...@lfweb.dk wrote:

 Hi,

 I work on a little hobby-project, and i want to make a oo logging
 facility. (php5.3 oop)

 Is it best to make a class with static functions that i can call from my
 other classes? Or is it more appropriate to make a real logging-class i
 should instantiate every time i need to log something? (I just want to
 log to a file)

 Best regards
 Lars Nielsen


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Re: [PHP] static Logging class?

2013-03-03 Thread Ravi Gehlot
Hello Larry,

Thanks for sharing!



-
  [image: logo]
*Ravi Gehlot
*
Mobile: 407-283-5282
Orlando, FL 32765-8085
http://www.RaviGehlot.Net/
https://github.com/ravigehlot

*First, solve the problem. Then, write the code.*
[image: Twitter] http://www.twitter.com/ravigehlot [image:
LinkedIn]http://www.linkedin.com/in/ravigehlot [image:
Amazon]https://www.amazon.com/gp/pdp/profile/A35NGY72YZSFR7?ie=UTF8ref_=ya_56
[image:
Meetup] http://www.meetup.com/members/12029903/ [image:
pinterest]http://pinterest.com/ravigehlot/ [image:
reddit] http://www.reddit.com/user/ravigehlot/
Contact me: [image: Google Talk] ravigehlot [image: Skype] ravigehlot [image:
Y! Messenger] ravigehlot


On Sun, Mar 3, 2013 at 1:48 PM, Larry Garfield la...@garfieldtech.comwrote:

 Make a real classed object that you pass to various objects that need it.
  Otherwise you make your life way harder for unit testing.  Don't have a
 class that self-enforces that it's a singleton.  That way lies pain.

 In particular, I recommend using or writing a class based on the PSR-3
 recommendation:

 https://github.com/php-fig/**fig-standards/blob/master/**
 accepted/PSR-3-logger-**interface.mdhttps://github.com/php-fig/fig-standards/blob/master/accepted/PSR-3-logger-interface.md

 There's even stock code for the interface and some useful base classes
 available:

 https://packagist.org/**packages/psr/loghttps://packagist.org/packages/psr/log

 And for added fun, there are already publicly available open source
 libraries that implement PSR-3 that you can just drop in and use, such as:

 https://packagist.org/**packages/monolog/monologhttps://packagist.org/packages/monolog/monolog

 (If that's too heavy for you, writing your own PSR-3 compatible logger is
 dead-simple.)


 I'm sure you're about to say zOMG this is just a hobby project, I don't
 need something that fancy and all injected and shit!  If it's a simple
 project, use a simple container to do all the hard work for you:

 https://packagist.org/**packages/pimple/pimplehttps://packagist.org/packages/pimple/pimple

 (That's  100 lines of executable code.  Quite powerful, dead simple to
 use.)

 Cheers.

 --Larry Garfield, FIG member



 On 03/03/2013 07:26 AM, Lars Nielsen wrote:

 Hi,

 I work on a little hobby-project, and i want to make a oo logging
 facility. (php5.3 oop)

 Is it best to make a class with static functions that i can call from my
 other classes? Or is it more appropriate to make a real logging-class i
 should instantiate every time i need to log something? (I just want to
 log to a file)

 Best regards
 Lars Nielsen




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Re: [PHP] Introduction ... !

2013-03-03 Thread Ravi Gehlot
Hello Nick,

Welcome to the list. I joined the list awhile back then unsubscribed for
no apparent reason. This list was very active years ago. I came back about
a few months ago just as a watcher. I didn't really post or participate at
all. I guess, there are a lot of watchers only people here. They receive
digest e-mails; they just don't participate in any way. Then, there are
those who lost their jobs due to the recession and so they dropped off the
list as well. There are a lot of developers unemployed. I would imagine
that other developers didn't keep up with the changes. PHP has come a long
way as far as Object Oriented Programming is concerned. There have been
many discussions about Design Patterns and extending existing classes. So a
lot has changed in the last 5 years.

I do believe that the list will pick up again.

Welcome back,
Ravi.

On Fri, Mar 1, 2013 at 10:57 AM, Nick Whiting prg...@gmail.com wrote:

 Hello PHP'ers!

 Just thought I would introduce myself to the mailing list since I've worked
 with PHP for almost 10 years now and yet haven't really been community
 active ...

 I've developed quite a few open-source projects over the years that I hope
 someone here will find as useful as I have ... they are all hosted on
 Github @prggmr.

 XPSPL - Signal Processor in PHP
 docpx - PHP Documentation Generator for Sphinx

 Again Hello Everyone!

 Cheers!
 --
 Nickolas Whiting - prggmr.org
  - Remember to write less code that does more faster -



Re: [PHP] Re: Warning when calling session_start()

2010-12-22 Thread Ravi Gehlot
session_start (); should be before everything...first thing in the page.

Ravi.


On Wed, Dec 22, 2010 at 12:51 AM, web...@blaettner.com wrote:

 Hi, folks,

 On Tue, 21 Dec 2010 21:35:17 -0800 [06:35:17 AM CET],
 Michael Shadle mike...@gmail.com wrote:

  first - this is probably your culprit:
  don't output empty lines before you do
  anything (just a general good practice)

 Whow! This did the trick !

 Warning vanished when I changed beginning of
 script to:

 1 ?php session_start ();
 2

 I wasn't aware that the HTML comment and the
 following empty line are in fact written to
 output.  But that's clear now  :-)

 So I suppose my local PHP setup supressed this
 warning or is more compliant ...

  also i'd turn on output buffering.

 Since it worked without warning at 1st try,
 I haven't changed output buffering (yet).

 Mike, many thanks for Your PROMPT and HELPFUL
 answer! Have a nice day!

 Rolf
 --
 Dipl.phys. Rudolf Otto Blättner,
 D 91074 Herzogenaurach, Germany.

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Re: [PHP] empty() in email message

2010-12-22 Thread Ravi Gehlot
Hello Gary,

Please research the difference between a single quote and a double quote.
Also, you can use the operator .=(dot + equal) in this manner:

if(!empty($_POST['fname'])) {
$msg .= $lname\n;
} else if(!empty($_POST['lname'])) {
$msg .= $lname\n;
}



On Tue, Dec 14, 2010 at 12:04 AM, Gary gp...@paulgdesigns.com wrote:


 Daevid Vincent dae...@daevid.com wrote in message
 news:7d7c84d94dd24035a620e68b5b937...@mascorp.com...
  - Original message -
  From: Gary gp...@paulgdesigns.com
  To: php-general@lists.php.net php-general@lists.php.net
  Date: Monday, December 13, 2010, 7:47:49 PM
  Subject: [PHP] empty() in email message
 
  I have an email message
 
  $msg =  'Name: $fname ' . ' $lname\n'
  . Phone: $phone\n
  . Email: $email\n
 
  and it works fine, however in this message there are about 30
  variables that
  are being called...as such
 
  . Order: beefschnitzel $beefschnitzel\n
  . Order: beefstrips $beefstrips\n
  . Order: cheesesausage $cheesesausage\n
  . Order: crumbedsausage $crumbedsausage\n
  . Order: chucksteak $chucksteak\n
  . Order: cornedbeef $cornedbeef\n
  . Order: dicedsteak $dicedsteak\n
  . Order: filletmignon $filletmignon\n
 
  I want to only send the message if the submitter enters an
  amount in the
  form for the corresponding variable, instead of having a
  bunch of empty
  messages.  So I have been trying to use the empty() function as such:
 
  . if empty($beefolives){''} elseif (isset($beefolives)) {
  'Order: beefolives
  $beefolives\n'}
 
  You are setting this up fundamentally wrong.
 
  You should be using an array and looping through it.
 
  Something like:
 
  $myorder['cowface'] = 1;
  $myorder['beefenweiner'] = 2;
  $myorder['chucksteak']   = 1;
 
  foreach ($myorder as $item = $quantity)
  {
  echo Order: $item x $quantity\n;
  }
 
  Then your array only contains the items someone actually puchased and how
  many.
 
  d
 

 Daevid

 I knew someone was going to point out this was a convoluted method, and I
 agree.  This was sent to me by someone that needed to make the mail form
 work.  My suggestion was to look into a pre-made shopping cart, however
 that
 was not going to work for them, so I made the mail() work for them.

 I had thought about putting it into an array, but had not gotten that far
 into it.  I will look over the code to see how it works.

 Thank you for your help.

 gary




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 database 5700 (20101213) __

 The message was checked by ESET Smart Security.

 http://www.eset.com





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Re: [PHP] accessing magic parent set

2010-12-22 Thread Ravi Gehlot
Hello,

$this only calls variables inside of a method. In your function, you are
calling a variable that was defined inside of your function called
$columnName. You should past the whole class. Not just the methods.

The pseudo-variable $this is available when a method is called from within
an object context. $this is a reference to the calling object (usually the
object to which the method belongs, but possibly another object, if the
method is called statically from the context of a secondary object).  taken
from http://www.php.net/manual/en/language.oop5.basic.php

The parent keyword indicates that this is an extended class. You are
referring back to the master class.

Ravi.


On Wed, Dec 22, 2010 at 9:35 AM, Alexandru Patranescu dreal...@gmail.comwrote:

 Is this the only way to access the magic __set from the parent class:

public function __set($columnName, $value)
{
if ($value !== $this-$columnName) {
parent::__set($columnName, $value);
}
}


 I would have liked to work this way:

public function __set($columnName, $value)
{
if ($value !== $this-$columnName) {
parent::$columnName = $value;
}
}


 And another question.
 There is a self, a static and a parent
 Why is it only $this and not a $parent too?



Re: [PHP] Stripslashes

2010-12-22 Thread Ravi Gehlot
What are these magic quotes anyways?. What are they used for? escaping?

Regards,
Ravi.

On Tue, Nov 16, 2010 at 11:44 PM, Adam Richardson simples...@gmail.comwrote:

 On Tue, Nov 16, 2010 at 10:10 PM, Gary gp...@paulgdesigns.com wrote:

  I was doing a test of stripslashes on a $_POST, when I recieved the
 email,
  all of the slashes were still in the data posted.
 
  I used :
 
  $fname = stripslashes($_POST['fname']);
 
  I input G\\a//r\y\\, and was expecting, according to the manuel
 G\a//r*y\,
  but got the original spelling.
 

 In this case, you should get the original, if I'm understanding correctly.
  Think of it like a basic math problem:

 Step 1: Happens automatically when you submit the form and PHP receives the
 form variables
 input + slashes = slashed_input

 Step 2: This happens when you call stripslashes.
 slashed_input - slashes = input

 The goal of stripslashes is that it will undo what happened automatically
 using magic_quotes_gpc (which essentially calls addslashes on the GPC vars
 behind the scenes) so you'll end up with the original input.

 So, working through your example:

   1. You inputted into a form G\\a//r\y\\ and submitted the form.
   2. PHP received G\\a//r\y\\ and added slashes (Ga//r\\y).
   3. You called stripslashes (G\\a//r\y\\).




 
  I added:
 
  echo stripslashes($fname); and did get the expected result on the page,
 but
  not in the email from the $_POST.
 

 Here, you called stripslashes on something already stripped once, so you
 now
 have a new value (G\a//ry\).


 
  I also tried
 
  $fname = (stripslashes($_POST['fname']));
 

 This would be no different than your attempt without enclosing parentheses.

 Now, let me just say that I detest magic_quotes, and it's best to run with
 them disabled so you  don't even have to worry about this kind of issue
 (they've been deprecated.)  But, perhaps you were just trying to learn
 about
 some piece of legacy code.

 Hope the explanation helps, Gary.

 Adam

 --
 Nephtali:  PHP web framework that functions beautifully
 http://nephtaliproject.com



Re: [PHP] [SOLVED] Re: Upgraded system and now $_SERVER['SERVER_NAME'] is not more working

2010-12-22 Thread Ravi Gehlot
You probably have error_reporting turned on and that caught on errors. There
are new tougher rules/requirements with newer PHP versions.

Ravi.


Re: [PHP] Stripslashes

2010-12-22 Thread Ravi Gehlot
On Wed, Dec 22, 2010 at 3:34 PM, Bob McConnell r...@cbord.com wrote:

 From: Ravi Gehlot

  What are these magic quotes anyways?. What are they used for?
 escaping?

 I wasn't there at the time, but I gather that the general idea was to
 automagically insert escape characters into data submitted from a form.
 However, they used a backslash as the escape character, which is not
 universally recognized across database engines. Even the SQL standard
 defines an escape as a single quote character.

 We used to have magic quotes enabled, and came up with the following
 code to clean up the mess it caused.

// If magic quotes is on, we want to remove slashes
if (get_magic_quotes_gpc()) {
  // Magic quotes is on
  $response = stripslashes($_POST[$key]);
} else {
  $response = $_POST[$key];
}

 For future releases of PHP, this will also need a check to see if
 get_magic_quotes_gpc() exists first.

 Bob McConnell

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Bob,

Thank you very much. This is good information. What I found out from
http://us2.php.net/manual/en/function.stripslashes.php was the following:
An example use of *stripslashes()* is when the PHP directive
magic_quotes_gpchttp://us2.php.net/manual/en/info.configuration.php#ini.magic-quotes-gpcis
*on* (it's on by default), and you aren't inserting this data into a place
(such as a database) that requires escaping. For example, if you're simply
outputting data straight from an HTML form. 

So that means that stripslashes() isn't intended for DB insertions but only
straight output. So I will remove it from my code.

Thanks,
Ravi.


Re: [PHP] Stripslashes

2010-12-22 Thread Ravi Gehlot
On Wed, Dec 22, 2010 at 4:21 PM, Russell Dias rus...@gmail.com wrote:

 stripslashes() is rife with gaping security holes.  For mysql
 insertion rely on mysql_real_escape_string() or alternatively, you can
 use prepared statements.

 For outputting data on the page you should ideally be using
 htmlspecialchars($var, ENT_QUOTES);

 cheers,
 Russ

 On Thu, Dec 23, 2010 at 6:48 AM, Ravi Gehlot r...@ravigehlot.net wrote:
  On Wed, Dec 22, 2010 at 3:34 PM, Bob McConnell r...@cbord.com wrote:
 
  From: Ravi Gehlot
 
   What are these magic quotes anyways?. What are they used for?
  escaping?
 
  I wasn't there at the time, but I gather that the general idea was to
  automagically insert escape characters into data submitted from a form.
  However, they used a backslash as the escape character, which is not
  universally recognized across database engines. Even the SQL standard
  defines an escape as a single quote character.
 
  We used to have magic quotes enabled, and came up with the following
  code to clean up the mess it caused.
 
 // If magic quotes is on, we want to remove slashes
 if (get_magic_quotes_gpc()) {
   // Magic quotes is on
   $response = stripslashes($_POST[$key]);
 } else {
   $response = $_POST[$key];
 }
 
  For future releases of PHP, this will also need a check to see if
  get_magic_quotes_gpc() exists first.
 
  Bob McConnell
 
  --
  PHP General Mailing List (http://www.php.net/)
  To unsubscribe, visit: http://www.php.net/unsub.php
 
 
  Bob,
 
  Thank you very much. This is good information. What I found out from
  http://us2.php.net/manual/en/function.stripslashes.php was the
 following:

 An example use of *stripslashes()* is when the PHP directive
  magic_quotes_gpc
 http://us2.php.net/manual/en/info.configuration.php#ini.magic-quotes-gpc
 is
  *on* (it's on by default), and you aren't inserting this data into a
 place
  (such as a database) that requires escaping. For example, if you're
 simply
  outputting data straight from an HTML form. 
 
  So that means that stripslashes() isn't intended for DB insertions but
 only
  straight output. So I will remove it from my code.
 
  Thanks,
  Ravi.
 


Hello Russell,

When you use htmlspecialchars() it tries to escape single/double quotes with
a bunch of backslashes. I had stripslashes() in an attempt to try to get the
backslashes away but it didn't. So the solution was to disable magic quotes
in php.ini. With GoDaddy shared hosting, I had to rename php.ini over to
php5.ini in order to have this to work. Also had to include the command like
responsible for disabling magic quotes. Everything is good and clean now.

Now you type for example Hunter's Reserve Circle and it keeps it as it is.
Before it would print something like Hunter'///s Reserve Circle.
With double quote, the situation would be even worse.

mysql_real_escape_string() is a must in order to avoid SQL injections.

Regards,
Ravi.


Re: [PHP] Problem with Include

2010-12-21 Thread Ravi Gehlot
If something is working and you don't know exactly whats under the hood then
you are wasting your time in trying to re-invent your own wheel and waste
your time and resources to modify something that isn't needed to be touched.
Good programmers make good use of their time as well. We need to keep in
check with new technology, learn new trends and also master our weakness. If
we keep changing this or that or moving that or this then oh well...there
goes 1 day worth of work to figure stuff out.

Just my take on this. If you think different, then no problems.

Regards,
Ravi.


On Tue, Dec 21, 2010 at 10:23 AM, Paul M Foster pa...@quillandmouse.comwrote:

 On Tue, Dec 21, 2010 at 02:35:33AM -0500, David Hutto wrote:

  On Tue, Dec 21, 2010 at 2:29 AM, Ravi Gehlot r...@ravigehlot.net
 wrote:
   Why mess with something that is already working? If you are trying to
 make
   it pretty then you are not solving a problem. You are creating one.
 
 
  Define working. I've had programs 'work', but more experienced would
  say it's flawed in some respect. Does it perform the immediate task?
 
  Now define pretty. Is it aesthetically pleasing to you, or to someone
  else with less, or maybe more experience.
 
  By defining the two above, you then define whether it's a problem. To
  you, or to them, or to the original designer?

 Beware of more experienced programmers. I recently talked to an
 ex-boss of mine who had a programmer flake out on him. One of his
 customers threatened to take this flaky code to another company and get
 their opinion about whether it was good code or not. My ex-boss
 explained that, of course, they'd shoot it down. Because that's what
 programmers do-- they complain about other programmers' code. I'd never
 heard that idea expressed aloud. But when I thought about it, I realized
 it was true. Hell, look at the content of this list. ;-}

 Paul

 --
 Paul M. Foster

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Re: [PHP] Common session for all subdomains?

2010-12-21 Thread Ravi Gehlot
Daniel,

Good info.

Ravi.


On Tue, Dec 21, 2010 at 10:23 AM, Daniel Brown danbr...@php.net wrote:

 On Tue, Dec 21, 2010 at 02:27, Ravi Gehlot r...@ravigehlot.net wrote:
  That's a good question.
 
  There should be a setting on php.ini to allow cross session.

 Right.  Because who needs to teach folks about computer security
 when we can just disable it for them anyway?

Like Jonathan pointed out, it's a matter of adjusting the cookie
 parameters to match wildcard subdomains by preceding the part of the
 domain (usually the SLD, but some ccTLD or FQDN situations can be
 different) with a dot, like so:.example.com

 --
 /Daniel P. Brown
 Network Infrastructure Manager
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Re: [PHP] Re: Session problem

2010-12-21 Thread Ravi Gehlot
Walter,

Session variables may be using cookies which in turn create temp files for
storing such cookies.

Ravi.


On Tue, Dec 21, 2010 at 11:32 AM, Walter Caielli
walter.caie...@ars21.netwrote:

 I've fixed the problem.
 I don't know why, but suddenly windows prevents PHP from writing into
 C:\windows\temp directory.
 Moving the session and log files to another directory solved the problem.
 Until few days ago it worked. I've now to discovered what was changed in
 windows configuration.



 Walter Caielli walter.caie...@ars21.net ha scritto nel messaggio
 news:bd.40.31041.b7a60...@pb1.pair.com...
  I'm facing the following basic problem:
 
  I have made two simple sample files to explain it:
 
  1st file:
  ?php
session_start();
 $_SESSION['SS_user'] = user000;
echo $_SESSION['SS_user'];
echo SID;
echo br.session_id();
echo 'br /a href=home.phppage 1/a';
  ?
 
  2nd file
  ?php
session_start();
echo file Homebr;
echo session_name().'+'.session_id();
echo $_SESSION['SS_user'];
  ?
 
  $_SESSION seems to be empty. Nothing is print. Session Name and session
 ID
  are the same but it seems that $_SESSION is not shared across the two
  files. No HTML is made before sessioni_start().
  Why?
  I'm using PHP 5.3.4 on IIS, windows XP SP3. Tested as localhost or from
  another PC inside a LAN.
 
  Many thanks
  Walter
 
 
 



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Re: [PHP] Problem with Include

2010-12-21 Thread Ravi Gehlot
Hello,

Good points. If you are getting paid to do that then fine. There is a
difference between enhancing code and wasting time. I do my best to come up
with the best I can. I always take notes to perform better in upcoming
projects. It is imperative to make good use of time. Unless it is a security
issue, no need to waste time. Again, if you are getting paid for it then
fine. People tune cars for a reason, they want the attention or the thrill.
If you want to tune your code for fun then nobody is against that either :)

Ravi.


On Tue, Dec 21, 2010 at 1:28 PM, a...@ashleysheridan.co.uk 
a...@ashleysheridan.co.uk wrote:

 (Apologies for top posting; on my mobile just now.)

 Not true. Refactoring code is one of the main tasks of a developer. None of
 us produce perfect code, and some code is less perfect than other code. It's
 instinct to want to fix bad code when we're maintaining it or having to add
 new features to it.

 For the same reason car enthusiasts tinker with and tune their cars, good
 developers will do the same with code, be it in the form of consolidating
 common code to include files or other ways. To not do so seems to me to
 avoid ones nature really!

 Thanks,
 Ash
 http://www.ashleysheridan.co.uk

 - Reply message -
 From: Ravi Gehlot r...@ravigehlot.net
 Date: Tue, Dec 21, 2010 18:12
 Subject: [PHP] Problem with Include
 To: Paul M Foster pa...@quillandmouse.com
 Cc: php-general@lists.php.net


 If something is working and you don't know exactly whats under the hood
 then
 you are wasting your time in trying to re-invent your own wheel and waste
 your time and resources to modify something that isn't needed to be
 touched.
 Good programmers make good use of their time as well. We need to keep in
 check with new technology, learn new trends and also master our weakness.
 If
 we keep changing this or that or moving that or this then oh well...there
 goes 1 day worth of work to figure stuff out.

 Just my take on this. If you think different, then no problems.

 Regards,
 Ravi.


 On Tue, Dec 21, 2010 at 10:23 AM, Paul M Foster pa...@quillandmouse.com
 wrote:

  On Tue, Dec 21, 2010 at 02:35:33AM -0500, David Hutto wrote:
 
   On Tue, Dec 21, 2010 at 2:29 AM, Ravi Gehlot r...@ravigehlot.net
  wrote:
Why mess with something that is already working? If you are trying to
  make
it pretty then you are not solving a problem. You are creating one.
  
  
   Define working. I've had programs 'work', but more experienced would
   say it's flawed in some respect. Does it perform the immediate task?
  
   Now define pretty. Is it aesthetically pleasing to you, or to someone
   else with less, or maybe more experience.
  
   By defining the two above, you then define whether it's a problem. To
   you, or to them, or to the original designer?
 
  Beware of more experienced programmers. I recently talked to an
  ex-boss of mine who had a programmer flake out on him. One of his
  customers threatened to take this flaky code to another company and get
  their opinion about whether it was good code or not. My ex-boss
  explained that, of course, they'd shoot it down. Because that's what
  programmers do-- they complain about other programmers' code. I'd never
  heard that idea expressed aloud. But when I thought about it, I realized
  it was true. Hell, look at the content of this list. ;-}
 
  Paul
 
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Re: [PHP] PDO Prepared Statements and stripslashes

2010-12-20 Thread Ravi Gehlot
Hello,

The plug-in PDO has nothing to do with the backslashes being inserted into
the database. The backslashes are used to escape characters like in D's...it
would show D's. That's the safe behavior of it. You can change
your programming code to fix that.

Ravi.


On Tue, Dec 21, 2010 at 12:59 AM, Rico Secada coolz...@it.dk wrote:

 On Tue, 21 Dec 2010 00:32:19 -0500
 Paul M Foster pa...@quillandmouse.com wrote:

  On Tue, Dec 21, 2010 at 05:31:15AM +0100, Rico Secada wrote:
 
   Hi.
  
   In an article about SQL Injection by Chris Shiflett he mentions the
   following in a comment: The process of escaping should preserve
   data, so it should never be necessary to reverse it. When I'm
   auditing an application, things like stripslashes() alert me to
   design problems.
  
   Now, I'm always using PHP PDO with prepared statements and as such
   data with quotes gets slashed automatically by PDO when inserted
   into the database.
 
  Just out of idle curiosity, are you using MySQL? PDO shouldn't be
  backslashing quotes for PostgreSQL, as the PostgreSQL convention for
  values containing single quotes is to double the quotes, as: ''.

 Currently I'm working with MySQL, but I have just tested PDO with
 PostgreSQL 8.3 and in this case PDO backslashes PostgreSQL as well.

   When I need to pull out the data something might be slashed and I
   need to use stripslashes() or some str_replace() to make sure that
   the slashes are removed.
  
   So what's the mistake here and what's the correct way to do it?
 
  I don't see a mistake. If the values come out of the database
  backslashed, then you need to remove them to work with the data. My
  only question would be whether you're sure the data is backslashed
  before PDO ever sees it. In which case, yes, you have a problem.

 No, the data is not slashed before PDO sees them.

 I didn't see a mistake either, but then what does Chris mean? Stripping
 slashes from output from the DB alerts him to a design problem, and
 I'm just wondering if there another way of doing things I just haven't
 heard of then.

  Paul
 
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Re: [PHP] Common session for all subdomains?

2010-12-20 Thread Ravi Gehlot
That's a good question.

There should be a setting on php.ini to allow cross session.

Ravi.


On Mon, Dec 20, 2010 at 7:05 PM, Jonathan Tapicer tapi...@gmail.com wrote:

 Hi!

 You should use the function session_set_cookie_params to set the
 session cookie domain to .oire.org like this comment explains:
 php.net/manual/en/function.session-set-cookie-params.php#94961

 Regards,
 Jonathan

 On Mon, Dec 20, 2010 at 7:18 PM, Andre Polykanine an...@oire.org wrote:
  Hello php-general,
  I've got a question: I have a site http://oire.org/. Then we started
  developing some applications at http://apps.oire.org/.
  How can I manage it in the way so the session valid at
  http://oire.org/ would be also valid at http://apps.oire.org/?
  Thanks!
  --
  With best regards from Ukraine,
  Andre
  Skype: Francophile
  Twitter: http://twitter.com/m_elensule
  Facebook: http://facebook.com/menelion
 
 
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Re: [PHP] Problem with Include

2010-12-20 Thread Ravi Gehlot
Why mess with something that is already working? If you are trying to make
it pretty then you are not solving a problem. You are creating one.

Ravi.


On Mon, Dec 20, 2010 at 7:40 AM, Daniel P. Brown
daniel.br...@parasane.netwrote:

 On Mon, Dec 20, 2010 at 02:49, Simcha Younger sim...@syounger.com wrote:
 
  Since it is being included by PHP, and not served by Apache, the
 extension is not important.

 Correct, but keep in mind that it will likely be served as plain
 text if accessed directly, if the web server is not properly
 configured (which, by default, it isn't).

 --
 /Daniel P. Brown
 Dedicated Servers, Cloud and Cloud Hybrid Solutions, VPS, Hosting
 (866-) 725-4321
 http://www.parasane.net/

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Re: [PHP] All records not displaying...

2010-12-20 Thread Ravi Gehlot
I would say enabled error_reporting(E_ALL); error_reporting(-1);

Then use die(mysql_error()); with your mysql function to get some debugging
data.

Also use var_dump($query_name) to find out what is spits out.

Debugging is your best friend here. If you don't use die() or
error_reporting() then you will see a blank screen.

Ravi.


On Sun, Dec 19, 2010 at 9:01 PM, Gary gp...@paulgdesigns.com wrote:


 Tamara Temple tamouse.li...@gmail.com wrote in message
 news:c6993909-dd90-4f52-bf6b-ab888c281...@gmail.com...
 
  On Dec 19, 2010, at 9:46 AM, Gary wrote:
 
  I have an issue that the first record in a query is not being
  displayed.
  It
  seems that the first row in alphabetical order is not being brought  to
  the
  screen.
 
  I have run the query in the DB and it displays the correct result,  so
 it
  has
  to be in the php.
 
  I have a MySQL DB that lists beers.  I have a column for 'type' of  beer
  (imported, domestic, craft, light). The queries:
 
  $result = MySQL_query(SELECT * FROM beer WHERE type = 'imported'  AND
  stock
  = 'YES' ORDER by beername );
 
  When I run the query
 
  if (mysql_num_rows($result) == !'0') {
 $row = mysql_fetch_array($result);
 
   echo 'h3Imported Beers/h3';
   echo 'table width=100% border=0 cellspacing=1 cellpadding=1
  id=tableone summary=
 
   thBeer/th
   thMaker/th
   thType/th
   thSingles/th
   th6-Packs/th
   thCans/th
   thBottles/th
   thDraft/th
   thSize/th
   thDescription/th';
 
   while ($row = mysql_fetch_array($result)) {
 
  echo 'tr td' . $row['beername'].'/td';
  echo 'td' . $row['manu'] . '/td';
  echo 'td' . $row['type'] . '/td';
  echo 'td width=40' . $row['singles'] . '/td';
  echo 'td width=20' . $row['six'] . '/td';
  echo 'td width=40' . $row['can'] . '/td';
  echo 'td width=20' . $row['bottles'] . '/td';
  echo 'td width=40' . $row['tap'] . '/td';
  echo 'td' . $row['size'] . '/td';
  echo 'td' . $row['descrip'] . '/td';
  '/tr';
 }
  echo '/tablebr /';
 
  }
 
  All but the first row in alphabetical order are displayed properly.
 
  Can anyone tell me where I am going wrong?
  --
  Gary
 
  BTW, I do have a bonus question that is about javascript in this  same
  file,
  so if anyone want to take a stab at that, I'll be happy to post it.
 
 
  This code will totally eliminate the first row of data.
 
  if (mysql_num_rows($result) == !'0') {
 $row = mysql_fetch_array($result);
 
  Fetches the first row, but is not output. Because:
 
   while ($row = mysql_fetch_array($result)) {
 
  Fetches the second row before you do any output of the data.
 
  Eliminate the first fetch_array and you're code should work fine.
 
  BTW, if you put the td attributes 'width=n' in the preceding th
  tags, you won't have to output them for each row. You should also put
  the
  units those numbers are associated with.
 
 
 Tamara

 Thank you for your help and thank you for the explaination.  I removed the
 line and it works fine.  I dont remember where or why I had that line in
 there, it is code that I have recycled for a while now.

 Gary



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 database 5716 (20101219) __

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Re: [PHP] array question

2010-12-20 Thread Ravi Gehlot
Jim Lucas has it. You can use the preg_match function to find it. I would
use regexp for that reason. regexp is good for making sure things are typed
the way they need to (mostly used for).

Ravi.


On Sat, Dec 18, 2010 at 5:17 PM, Jim Lucas li...@cmsws.com wrote:

 On 12/17/2010 12:52 PM, Sorin Buturugeanu wrote:

 Hello all!

 I have a question regarding arrays and the way I can use a value.

 Let's say I have this string:

 $s = 'banana,apple,mellon,grape,nut,orange'

 I want to explode it, and get the third value. For this I would normally
 do:

 $a = explode(',', $s);
 echo $s[2];

 That's all fine, but is there a way to get the value directly, without
 having to write another line in my script. I mean something like this:

 echo explode(',', $s)[2];

 or

 echo {explode(',', $s)}[2];

 I couldn't find out this answer anywhere, that's why I posted here.

 Cheers and thanks!


 Sure it CAN be done.  Nobody laugh too loud here... But...

 ?php

 $s = 'banana,apple,mellon,grape,nut,orange';
 echo preg_replace('/([^,]+,){3}([^,]+).*/', '$2', $s);

 ?
 Outputs: grape

 The {3} part is equivalent to the array position.  Change that number, and
 you change which word will get displayed.

 Jim Lucas

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Re: [PHP] PHPInfo disabled due to security

2010-12-20 Thread Ravi Gehlot
Hello there,

If you have a small to medium size web site then go to GoDaddy. Do not
believe all that you see from php_info(). I will give you an example. The
memory_limit it gives on shared hosting does not reflect the one intended
for your shared account. It shows what was set for overall use. But blocking
php_info() isn't right (at least I don't think so).

Ravi.


On Fri, Dec 17, 2010 at 10:25 AM, Daniel Brown danbr...@php.net wrote:

 On Thu, Dec 16, 2010 at 23:39, Paul S pau...@roadrunner.com wrote:
 
  Well, I was hoping for stronger arguments to get that DONE. I would think
  there be something in the PHP license
  that would FORBID disabling functionality.

 Really?  You would really think that?  Because we wouldn't.

  After all, 'phpinfo' is essential, really, to achieving secure
  applications, isn't it?

 No.  Writing good code is essential.

 --
 /Daniel P. Brown
 Network Infrastructure Manager
 Documentation, Webmaster Teams
 http://www.php.net/

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Re: [PHP] Error Querying Database

2010-12-20 Thread Ravi Gehlot
Trying to connect to the database can involve setting up your database. Make
sure that you have a valid login/password that is recognized by MySQL.
Please keep in mind that MySQL works on permission by hosts. So your host IP
must be matched with the username/password on the database for a successful
authentication. One way to know that you can connect successfully to your
remote database is to actually test it. Download MySQL Workbench from
Mysql.com and then try to connect to remote from the same host that your php
application is sitting at. If it works, thumbs up. If it does not then you
have a permission issue there. Add your username/host appropriately.

If you can connect without a hitch then you are doing something wrong on
your code. Use mysql_connect(), mysql_select_db() and then send an statement
and use the resource to see if it returns TRUE or FALSE. At this point, on
FALSE it means that you have a bad written statement.

There is so much that can go wrong. Debug step by step.

Ravi.


On Thu, Dec 16, 2010 at 9:26 PM, Phred White phpl...@planetphred.comwrote:

 It seems like there are several questions emerging, but ...

 Try echoing your query to the page by putting echo $query in your code
 before you call mysql, then copy it and run it in phpmyadmin. If it runs
 then you know your problem is somewhere else like the connection. This can
 really help you find typos that can cause mysterious results.

 If you want to use the same page to process the form (my preference) then
 put a hidden field in your form like:

input type=hidden name=phpaction id=phpaction value=process /

 and wrap the form processing code like so:

 if (isset($_POST['phpaction'])) {
//process submitted form data
 } else {
//processing for initial form entry
 }

 When the form is initially loaded it will ignore the first part
 There are a 1000 ways to do this, but this is pretty straightforward.

 On Dec 15, 2010, at 1:34 PM, Gary wrote:

 
  Steve Staples sstap...@mnsi.net wrote in message
  news:1292440837.5460.8.ca...@webdev01...
  On Wed, 2010-12-15 at 13:42 -0500, Gary wrote:
  I cant seem to get this to connect.  This is to my local testing
 server,
  which is on, so we need not worry that I have posted the UN/PW.
 
  This is a duplicate of a script I have used countless times and it
  worked.
  The error message is 'Error querying database.'
 
  Some one point out the error of my ways?
 
  Gary
 
 
  form action=?php echo $_SERVER[PHP_SELF]; ? method=post
  tr
  td
  labelName of Beer/label/tdtdinput name=beername type=text
 /
  /td
  /tr
  tr
  td
  labelMaker of Beer/label/tdtdinput name=manu type=text /
  /td
  /tr
  tr
  td
  labelType of Beer/label/td
  tdselect name=type size=1 id=type
   optionImported/option
   optionDomestic/option
   optionCraft/option
   optionLight/option
  /select
  !--select name=avail size=1 id=avail
   optionAvailable/option
   optionSold/option
  /select--
  /td
  /tr
  tr
  tdlabelSold in/label
  /tdtdinput type=checkbox name=singles value=Yes /
 Singlesbr
  /
  input type=checkbox name=six value=Yes / Six Packs br /
  input type=checkbox name=can value=Yes / Cansbr /
  input type=checkbox name=bottles value=Yes / Bottles br /
  input type=checkbox name=tap value=Yes / Draft br /
  tr
  td
  labelSize/label/tdtdinput name=size type=text /
  /td/tr
  trtd
  labelDescription/label/tdtdtextarea name=desc cols=40
  rows=5/textarea
  /td/tr
  trtd
  input name=submit type=submit value=Submit //td/tr
  /form
  /table
  /div
  div id=list
  ?php
  $beername = $_POST['beername'];
  $manu = $_POST['manu'];
  $type = $_POST['type'];
  $singles = $_POST['singles'];
  $six = $_POST['six'];
  $can = $_POST['can'];
  $bottles = $_POST['bottles'];
  $tap = $_POST['tap'];
  $size = $_POST['size'];
  $desc = $_POST['desc'];
  $ip= $_SERVER['REMOTE_ADDR'];
 
  $dbc = mysqli_connect('localhost','root','','rr')or die('Error
 connecting
  with MySQL Database');
 
  $query = INSERT INTO beer (beername, manu, type, singles, six, can,
  bottles, tap, size, desc, ip ). VALUES ('$beername', '$manu',
 '$type',
  '$singles', '$six', '$can', '$bottles', '$tap', '$size', '$desc',
  '$ip' );
 
  $result = mysqli_query($dbc, $query)
  or die('Error querying database.');
 
 
  mysqli_close($dbc);
 
 
 
  --
  Gary
 
 
  Read Ash's reply...   but basically, you're running the query with POST
  variables, and inserting them on page display as well as on form submit.
 
  can you ensure that you can connect from the command line?
 
 
  if you may take some criticism, you should rethink your database design,
  as well as the page flow/design... you should either post the form to a
  new page, or if it is back to itself, you should check to see that you
  have in fact posted it before just blindly inserting into the database
  (as currently, every time you view the page, you will insert into the
  database, even if completely empty values).
 
 
  Steve
 
  Thank you for your reply.
 
  I did not see

Re: [PHP] Problem with Include

2010-12-20 Thread Ravi Gehlot
My point is that you tried to take code from one page and put it all
organized in another page and the include that page of includes back into
the pages that you want it to feed off from. If stuff works the way that it
does then there a reason for it to have been done that way. That's why
documenting code is so important. 99% doesn't do it (including me).

Ravi.


On Tue, Dec 21, 2010 at 2:35 AM, David Hutto smokefl...@gmail.com wrote:

 On Tue, Dec 21, 2010 at 2:29 AM, Ravi Gehlot r...@ravigehlot.net wrote:
  Why mess with something that is already working? If you are trying to
 make
  it pretty then you are not solving a problem. You are creating one.


 Define working. I've had programs 'work', but more experienced would
 say it's flawed in some respect. Does it perform the immediate task?

 Now define pretty. Is it aesthetically pleasing to you, or to someone
 else with less, or maybe more experience.

 By defining the two above, you then define whether it's a problem. To
 you, or to them, or to the original designer?

 
  Ravi.
 
 
  On Mon, Dec 20, 2010 at 7:40 AM, Daniel P. Brown
  daniel.br...@parasane.netwrote:
 
  On Mon, Dec 20, 2010 at 02:49, Simcha Younger sim...@syounger.com
 wrote:
  
   Since it is being included by PHP, and not served by Apache, the
  extension is not important.
 
  Correct, but keep in mind that it will likely be served as plain
  text if accessed directly, if the web server is not properly
  configured (which, by default, it isn't).
 
  --
  /Daniel P. Brown
  Dedicated Servers, Cloud and Cloud Hybrid Solutions, VPS, Hosting
  (866-) 725-4321
  http://www.parasane.net/
 
  --
  PHP General Mailing List (http://www.php.net/)
  To unsubscribe, visit: http://www.php.net/unsub.php
 
 
 



 --
 They're installing the breathalyzer on my email account next week.



Re: [PHP] Application settings, configuration, and preferences.

2010-10-27 Thread J Ravi Menon
I am partial to the filesystem but I can see scenarios where the db
approach might be useful (single point of control) with good caching
strategy using apc or other mechanisms.

One approach I have followed is that if the config. field and values
are simple key-value pairs, you could store them in a dedicated conf
file and have it included in the main apache conf file (Include
directive). This way, all the configs are accessible via $_SERVER. The
separate conf file can be checked in svn, pushed separately as part of
release process etc...  The same approach also works in standalone php
cli scripts via a shell wrapper - e.g.:

#!/bin/bash
.
# list fields directly here or load them separately - e.g:
#  . /path/to/some_file.conf
export FIELD1=foo
export FIELD2 =bar

# Note: values can have some structure too
export FIELD3=abc,cde,fgh
.
.
/usr/bin/php some_script.php

You could also use the php ini style confs:

http://php.net/manual/en/function.parse-ini-file.php

In the $_SERVER approach above, the parsing is done at start-up, so
there is no setup cost at every request. For the ini or xml parsing
approach, you may need to cache the result if this parsing cost needs
to be avoided on every request.

Ravi



On Wed, Oct 27, 2010 at 10:17 AM, Michael Shadle mike...@gmail.com wrote:
 I find json to be the most ideal data exchange format but using it for 
 configuration files one may edit by hand is horrible. XML, ini or yaml would 
 be better. I still prefer XML. Albeit verbose it is the easiest to read and 
 easy to validate against.

 On Oct 27, 2010, at 10:12 AM, Bob McConnell r...@cbord.com wrote:

 From: Ken Guest

 On Wed, Oct 27, 2010 at 5:27 PM, mmest...@nagios.com wrote:
 Recently we had a discussion about weather our code should be
 configured
 using files or a DB back-end.  As this topic effects nearly every
 development team I was wondering if there shouldn't be a common
 library
 that deals with all of these issues.

 We came to the conclusion that either should work, but our project
 must
 work on systems that would not have an SQLDB installed.  There fore
 it
 must be configured using files as supporting both would be a waste of
 our development time.

 Looking around for a solution I came across an extension to getopt
 that
 read command line parameters from a file, essentially emulating exec
 $(cat);.  As this did allow configuration from either the command
 line
 or a file it's a good start.  However we are specificually looking
 for
 something that would accept configuration from a file or a DB,
 command
 line options are not important.  Though a great solution would take
 configuration from anywhere.

 A full featured solution would also support containing user
 preferences
 and administrative settings.  Allowing any of these to come from
 almost
 anywhere.  Here is how an example deployment might work.  As this
 would
 be a programming tool the user would be an administrator installing
 and
 configuring the software.

 Some configuration information contained in php should be extensible
 so
 that all the configuration could be done there.  In this case
 settings
 and user preferences would be read-only, configuration information is
 always read-only.  This would usually specify a config file to be
 located in the same folder or a subfolder.

 This configuration file would have a default format that is
 configurable
 in the php.  Would be one of PHP, XML, bind, apache, and several
 other
 config file formats.  This file would contain information on where
 settings and preferences could be written to, either another
 configuration file some where in /var or connection information for a
 DB.

 From an application developers stand point this should all be as
 difficult as getopt to setup, design decisions like what format the
 config file is in should be left up to the admin installing the
 software.  The developer need only be concerned with defining the
 values
 stored, there type, and other properties.

 Does anything like this exist?  This seams like an essential piece of
 code that is re-invented for every project.


 PEAR's Config package sounds like a good match for what you are
 looking for.
 It parses and outputs various formats and edits existing config files

 http://pear.php.net/package/Config

 There's a brief intro to what it can do at
 http://pear.php.net/manual/en/package.configuration.config.intro.php

 I have to admit I am somewhat biased as I'm currently on the PEAR
 Group
 (read 'committee') - but I'd be surprised if there's not a Zend or
 ezComponents/zetaComponents equivalent. I also have to admit there are
 some
 outstanding issues that need to be addressed for PEAR's Config package
 - the
 good news is someone has volunteered to resolve these today.

 There are nearly as many ways to do this as there are languages to
 implement them in. I have been using YAML files for a while now, not
 only for configuration and parameter storage, but also input for data
 driven testing

Re: [PHP] Application settings, configuration, and preferences.

2010-10-27 Thread J Ravi Menon
On Wed, Oct 27, 2010 at 11:39 AM, J Ravi Menon jravime...@gmail.com wrote:
 I am partial to the filesystem but I can see scenarios where the db
 approach might be useful (single point of control) with good caching
 strategy using apc or other mechanisms.

 One approach I have followed is that if the config. field and values
 are simple key-value pairs, you could store them in a dedicated conf
 file and have it included in the main apache conf file (Include
 directive). This way, all the configs are accessible via $_SERVER. The
 separate conf file can be checked in svn, pushed separately as part of
 release process etc...  The same approach also works in standalone php
 cli scripts via a shell wrapper - e.g.:

 #!/bin/bash
 .
 # list fields directly here or load them separately - e.g:
 #  . /path/to/some_file.conf
 export FIELD1=foo
 export FIELD2 =bar

 # Note: values can have some structure too
 export FIELD3=abc,cde,fgh
 .
 .
 /usr/bin/php some_script.php

 You could also use the php ini style confs:

 http://php.net/manual/en/function.parse-ini-file.php

 In the $_SERVER approach above, the parsing is done at start-up, so
 there is no setup cost at every request. For the ini or xml parsing
 approach, you may need to cache the result if this parsing cost needs
 to be avoided on every request.

 Ravi



 On Wed, Oct 27, 2010 at 10:17 AM, Michael Shadle mike...@gmail.com wrote:
 I find json to be the most ideal data exchange format but using it for 
 configuration files one may edit by hand is horrible. XML, ini or yaml would 
 be better. I still prefer XML. Albeit verbose it is the easiest to read and 
 easy to validate against.

 On Oct 27, 2010, at 10:12 AM, Bob McConnell r...@cbord.com wrote:

 From: Ken Guest

 On Wed, Oct 27, 2010 at 5:27 PM, mmest...@nagios.com wrote:
 Recently we had a discussion about weather our code should be
 configured
 using files or a DB back-end.  As this topic effects nearly every
 development team I was wondering if there shouldn't be a common
 library
 that deals with all of these issues.

 We came to the conclusion that either should work, but our project
 must
 work on systems that would not have an SQLDB installed.  There fore
 it
 must be configured using files as supporting both would be a waste of
 our development time.

 Looking around for a solution I came across an extension to getopt
 that
 read command line parameters from a file, essentially emulating exec
 $(cat);.  As this did allow configuration from either the command
 line
 or a file it's a good start.  However we are specificually looking
 for
 something that would accept configuration from a file or a DB,
 command
 line options are not important.  Though a great solution would take
 configuration from anywhere.

 A full featured solution would also support containing user
 preferences
 and administrative settings.  Allowing any of these to come from
 almost
 anywhere.  Here is how an example deployment might work.  As this
 would
 be a programming tool the user would be an administrator installing
 and
 configuring the software.

 Some configuration information contained in php should be extensible
 so
 that all the configuration could be done there.  In this case
 settings
 and user preferences would be read-only, configuration information is
 always read-only.  This would usually specify a config file to be
 located in the same folder or a subfolder.

 This configuration file would have a default format that is
 configurable
 in the php.  Would be one of PHP, XML, bind, apache, and several
 other
 config file formats.  This file would contain information on where
 settings and preferences could be written to, either another
 configuration file some where in /var or connection information for a
 DB.

 From an application developers stand point this should all be as
 difficult as getopt to setup, design decisions like what format the
 config file is in should be left up to the admin installing the
 software.  The developer need only be concerned with defining the
 values
 stored, there type, and other properties.

 Does anything like this exist?  This seams like an essential piece of
 code that is re-invented for every project.


 PEAR's Config package sounds like a good match for what you are
 looking for.
 It parses and outputs various formats and edits existing config files

 http://pear.php.net/package/Config

 There's a brief intro to what it can do at
 http://pear.php.net/manual/en/package.configuration.config.intro.php

 I have to admit I am somewhat biased as I'm currently on the PEAR
 Group
 (read 'committee') - but I'd be surprised if there's not a Zend or
 ezComponents/zetaComponents equivalent. I also have to admit there are
 some
 outstanding issues that need to be addressed for PEAR's Config package
 - the
 good news is someone has volunteered to resolve these today.

 There are nearly as many ways to do this as there are languages to
 implement them in. I have been using YAML files

Re: [PHP] PHP Email Question

2010-09-30 Thread J Ravi Menon
On Wed, Sep 29, 2010 at 1:37 PM, Joe Jackson priory...@googlemail.com wrote:
 Hi

 I am trying the following snippet as Bostjan  suggested, and an email is
 getting sent when I submit the form however in the body of the email I am
 getting none of the form data in the body of the email.  All I am getting is
 the letter 'z' ?  Also in the from field of the email this is showing as my
 email address and not the email address of the user who has sent the form

 Any ideas on where I am going wrong with this snippet?  Any advice would be
 much appreciated

 $msgContent = Name: . $values['name'] .\n;
 $msgContent .= Address: . $values['address'] .\n;
 $msgContent .= Telephone: . $values['telephone'] .\n;
 $msgContent .= Email Address: . $values['emailaddress'] .\n;
 $msgContent .= Message: . $values['message'] .\n;

 function ProcessForm($values)
 {
     mail('myemail:domain.com', 'Website Enquiry', $msgContent, From:
 \{$values['name']}\ {$values['emailaddress']});

  // Replace with actual page or redirect :P
     echo htmlheadtitleThank you!/title/headbodyThank
 you!/body/html;

Not sure if it it is a typo above, are you actually passing
$msgContent in the function above? If it is a global variable, you
would need to add a 'global' declaration:

function ProcessForm($values)
{
   global $msgContent;

mail('myemail:domain.com', 'Website Enquiry', $msgContent, From:
\{$values['name']}\ {$values['emailaddress']}\r\n);
.
.
.
}

Also try adding CRLF sequence at the end of the header line as shown above.

Ravi

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Re: [PHP] PHP Email Question

2010-09-21 Thread J Ravi Menon
Just on this topic, I found swiftmailer library to be really useful
esp. in dealing with 'template' emails with custom variables per
recipient:

http://swiftmailer.org/

The e.g. on email template processing:

http://swiftmailer.org/docs/decorator-plugin-howto

There are batchSend() functionalities, ability to compose various mime
type emails etc...

Ravi

On Mon, Sep 20, 2010 at 8:20 AM, chris h chris...@gmail.com wrote:
 Ignore the other parameters unless you are very familiar with RFCs 2821,
 2822 and their associated RFCs



 I would advise against ignoring the other parameters.  Doing so will pretty
 much guarantee having your email end up in SPAM.  Instead look up the
 examples in the docs, or better yet use something like phpmailer as Tom
 suggested.


 Chris.


 On Sun, Sep 19, 2010 at 6:37 PM, TR Shaw ts...@oitc.com wrote:


 On Sep 19, 2010, at 6:00 PM, Joe Jackson wrote:

  Hi
 
  Sorry for the simple question but I am trying to get my head around PHP.
  I
  have a sample PHP script that I am trying to use to send a php powered
 email
  message.  The snippet of code is shown below
 
     mail('em...@address.com', 'Subject', $values['message'], From:
  \{$values['name']}\ {$values['emailaddress']});
 
  This works fine, but how can I add in other fields to the email that is
  recieved?
 
  For example in the form there are fields called, 'emailaddress',
  'telephone', 'address' and 'name' which I need to add into the form along
  with the message field
 
  Also with the formatting how can I change the format of the email to
 
  Name: $values['name'],
  Address: etc
  Message:
 

 Joe

 The mail command lets you send mail (an RFC2821 envelop). The function is:

 bool mail ( string $to , string $subject , string $message [, string
 $additional_headers [, string$additional_parameters ]] )

 $to is where you want it to go
 $subject is whatever you want the subject to be
 $message is the information you want to send

 Ignore the other parameters unless you are very familiar with RFCs 2821,
 2822 and their associated RFCs


 So if you want to send info from a form you might want to roll it up in xml
 and send it via the message part. when you receive it you can easily decode
 it. If you don't want to do that put it in a format that you can easily
 decode on the receiving end.

 Basically mail is a way to deliver information in the $message body. How
 you format the information there is up to you. However, depending on your
 system's config you are probably constrained to placing only 7bit ascii in
 the $message body.

 You might also move away from the mail function and look at phpmailer at
 sf.net if you need more complex capabilities.

 Tom






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Re: [PHP] php cli question

2010-09-15 Thread J Ravi Menon
Thanks Bostjan for the suggestion. I did raise the issue and here is the reply:

http://news.php.net/php.internals/49672

Thx,
Ravi


On Wed, Sep 15, 2010 at 2:38 AM, Bostjan Skufca bost...@a2o.si wrote:
 Here are the results I got when question of migration from apache to nginx
 was brought up:
 http://blog.a2o.si/2009/06/24/apache-mod_php-compared-to-nginx-php-fpm/
 (BTW there is some FPM in main PHP distribution now)

 As for resource management, I recommend looking at php sources
 (Zend/zend_alloca.c:zend_mm_shutdown() specifically) and building a custom
 extension that frees discarded memory resources on your request or timer or
 sth else. Not sure if it is possible like that but this is just a
 suggestion, don't quote me on that :)
 Also, for such questions I recommend you to join php-internals mailing list,
 it seems more appropriate.

 b.


 On 15 September 2010 04:19, J Ravi Menon jravime...@gmail.com wrote:

 On Tue, Sep 14, 2010 at 1:15 PM, Per Jessen p...@computer.org wrote:
  J Ravi Menon wrote:
 
  On Tue, Sep 14, 2010 at 12:43 AM, Per Jessen p...@computer.org wrote:
  J Ravi Menon wrote:
 
  Few questions:
 
  1) Does opcode cache really matter in such cli-based daemons? As
  'SomeClass' is instantiated at every loop, I am assuming it is only
  compiled once as it has already been 'seen'.
 
  Yup.
 
  Just to clarify, you mean we don't need the op-code cache here right?
 
  That is correct.
 
  2) What about garbage collection? In a standard apache-mod-php
  setup, we rely on the end of a request-cycle to free up resources -
  close file descriptiors, free up memory etc..
  I am assuming in the aforesaid standalone daemon case, we would
  have to do this manually?
 
  Yes.
 
  So 'unset($some_big_array)'  or 'unset($some_big_object)' etc.. is the
  right way to go for non-resource based items? i.e. it needs to be
  explicitly done?
 
  It's not quite like C - if you reassign something, the previous contents
  are automagically freed.  I use unset() if I know it could be a while
  (hours) before it'll likely be reassigned, but it won't be used in the
  meantime.
 

 Thanks Per for clarifying this for me. Now on my follow up question:

 [Note: I think it is related to the issues discussed above hence
 keeping it on this thread but if I am violating any guidelines here,
 do let me know]

 One reason the aforesaid questions got triggered was that in our
 company right now, there is a big discussion on moving away from
 apache+mod_php solution to nginx+fast-cgi based model for handling all
 php-based services. The move seems to be more based some anecdotal
 observations and possibly not based on a typical php-based app (i.e.
 the php script involved was trivial one acting as some proxy to
 another backend service).

 I have written fast-cgi servers in the past in C++, and I am aware how
 the apahcefast-cgi-servers work (in unix socket setups).  All
 our php apps are written with apache+mod_php in mind (no explicit
 resource mgmt ), so this was a concern to me.

 If the same scripts now need to run 'forever' as a fastcgi server, are
 we forced to do such manual resource mgmt? Or are there solutions here
 that work just as in mod_php?

 This reminded me of the cli daemons that I had written earlier where
 such manual cleanups were done, and hence my doubts on this
 nginx+fast-cgi approach.

 thx,
 Ravi


 
 
  --
  Per Jessen, Zürich (14.6°C)
 
 
  --
  PHP General Mailing List (http://www.php.net/)
  To unsubscribe, visit: http://www.php.net/unsub.php
 
 

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Re: [PHP] php cli question

2010-09-14 Thread J Ravi Menon
On Tue, Sep 14, 2010 at 12:43 AM, Per Jessen p...@computer.org wrote:
 J Ravi Menon wrote:

 Few questions:

 1) Does opcode cache really matter in such cli-based daemons? As
 'SomeClass' is instantiated at every loop, I am assuming it is only
 compiled once as it has already been 'seen'.

 Yup.

Just to clarify, you mean we don't need the op-code cache here right?



 2) What about garbage collection? In a standard apache-mod-php setup,
 we rely on the end of a request-cycle to free up resources - close
 file descriptiors, free up memory etc..
     I am assuming in the aforesaid standalone daemon case, we would
 have to do this manually?

 Yes.


So 'unset($some_big_array)'  or 'unset($some_big_object)' etc.. is the
right way to go for non-resource based items? i.e. it needs to be
explicitly done?

thx,
Ravi



 Note: I have written pre-forker deamons in php directly and
 successfully deployed them in the past, but never looked at in depth
 to understand all the nuances. Anecdotally, I have
 done 'unset()' at some critical places were large arrays were used,
 and I think it helped. AFAIK, unlike Java, there is no 'garbage
 collector' thread that does all the magic?

 Correct.



 --
 Per Jessen, Zürich (12.9°C)


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Re: [PHP] php cli question

2010-09-14 Thread J Ravi Menon
On Tue, Sep 14, 2010 at 1:15 PM, Per Jessen p...@computer.org wrote:
 J Ravi Menon wrote:

 On Tue, Sep 14, 2010 at 12:43 AM, Per Jessen p...@computer.org wrote:
 J Ravi Menon wrote:

 Few questions:

 1) Does opcode cache really matter in such cli-based daemons? As
 'SomeClass' is instantiated at every loop, I am assuming it is only
 compiled once as it has already been 'seen'.

 Yup.

 Just to clarify, you mean we don't need the op-code cache here right?

 That is correct.

 2) What about garbage collection? In a standard apache-mod-php
 setup, we rely on the end of a request-cycle to free up resources -
 close file descriptiors, free up memory etc..
 I am assuming in the aforesaid standalone daemon case, we would
 have to do this manually?

 Yes.

 So 'unset($some_big_array)'  or 'unset($some_big_object)' etc.. is the
 right way to go for non-resource based items? i.e. it needs to be
 explicitly done?

 It's not quite like C - if you reassign something, the previous contents
 are automagically freed.  I use unset() if I know it could be a while
 (hours) before it'll likely be reassigned, but it won't be used in the
 meantime.


Thanks Per for clarifying this for me. Now on my follow up question:

[Note: I think it is related to the issues discussed above hence
keeping it on this thread but if I am violating any guidelines here,
do let me know]

One reason the aforesaid questions got triggered was that in our
company right now, there is a big discussion on moving away from
apache+mod_php solution to nginx+fast-cgi based model for handling all
php-based services. The move seems to be more based some anecdotal
observations and possibly not based on a typical php-based app (i.e.
the php script involved was trivial one acting as some proxy to
another backend service).

I have written fast-cgi servers in the past in C++, and I am aware how
the apahcefast-cgi-servers work (in unix socket setups).  All
our php apps are written with apache+mod_php in mind (no explicit
resource mgmt ), so this was a concern to me.

If the same scripts now need to run 'forever' as a fastcgi server, are
we forced to do such manual resource mgmt? Or are there solutions here
that work just as in mod_php?

This reminded me of the cli daemons that I had written earlier where
such manual cleanups were done, and hence my doubts on this
nginx+fast-cgi approach.

thx,
Ravi




 --
 Per Jessen, Zürich (14.6°C)


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[PHP] Re: php cli question

2010-09-13 Thread J Ravi Menon
On Sat, Sep 11, 2010 at 8:50 PM, Shawn McKenzie nos...@mckenzies.net wrote:
 On 09/10/2010 11:13 AM, J Ravi Menon wrote:
 Hi,

 I have some basic questions on running php  (5.2.x series on Linux
 2.6) as a standalone daemon using posix methods (fork() etc..):

 #!/usr/bin/php
 ?php

 require_once ('someclass.php');

 // do some initializations
 .

 // main 'forever' loop - the '$shutdown'  will
 // be set to true via a signal handler

 while(!$shutdown)
 {
   $a = new SomeClass();

   $a-doSomething()

 }

 // shutdown logic.

 The 'someclass.php' in turn will include other files (via require_once).

 The above file will be executed directly from the shell. The main loop
 could be listening to new requests via sockets etc..

 Few questions:

 1) Does opcode cache really matter in such cli-based daemons? As
 'SomeClass' is instantiated at every loop, I am assuming it is only
 compiled once as it has already been 'seen'.
     I am not very clear on how apc (or eaccelerator) works in such cases.


 2) What about garbage collection? In a standard apache-mod-php setup,
 we rely on the end of a request-cycle to free up resources - close
 file descriptiors, free up memory etc..
     I am assuming in the aforesaid standalone daemon case, we would
 have to do this manually?  In the loop above, would it be better to
 'unset($a)' explicitly at the end of it before
     it goes to the next iteration?

 Note: I have written pre-forker deamons in php directly and
 successfully deployed them in the past, but never looked at in depth
 to understand all the nuances. Anecdotally, I have
 done 'unset()' at some critical places were large arrays were used,
 and I think it helped. AFAIK, unlike Java, there is no 'garbage
 collector' thread that does all the magic?

 Thanks,
 Ravi

 If I have time when you reply I'll answer the questions, but I must ask:
  Is this purely academic?  Why is this a concern?  Have you encountered
 issues?  If so, what?

@Tom: I have compiled php with pcntl on and this has never been an
issue. It works well (on a linux setup), and I have deployed
standalone daemons with out any major problems. I have a home-grown
'preforker' framework (which I hope to share soon) which can be used
to exploit multi-core boxes.

@Shawn: It is not academic. There is a follow-up I am planning based
on the doubts above. I have deployed such daemons in the past with
some assumptions on (2) by doing manual cleanups - e.g. closing curl
connections, closing up db handles etc...  Really want to understand
how php works in such setups outside of apache+mod_php.

thanks,
Ravi








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 Thanks!
 -Shawn
 http://www.spidean.com


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Re: [PHP] Re: Best Practices Book, Document, Web Site?

2010-03-05 Thread J Ravi Menon
Other than coding standards, the other good read is:
(it seems to cover most topics I have ran into while maintaining a
high traffic site implemented in php 5):

http://phplens.com/lens/php-book/optimizing-debugging-php.php

It is 'best practices' from another angle - use of opcode cache (apc
etc..), output buffering and so on.

Coding standards vary a lot, so I would recommend sticking to one
style once a consensus is reached among the team and preferably
enforce it in automated fashion (e.g.
http://pear.php.net/package/PHP_CodeSniffer/ as a svn pre-commit
hook).

The other easily over-looked part I have seen in many php projects is
the code layout and directory structure, including dependency
management (library code vs business logic etc..), and more
importantly only exposing the main 'entry point' scripts (index.php or
controller.php in a MVC model) in a apache doc root. Many times I have
seen poorly laid out code that ends up getting deployed with the
entire code bases exposed in a apache doc root. If care is not taken
(e.g. naming some files .inc and no special apache rules to interpret
them as a php handler), it is a security nightmare with critical files
getting exposed.

I have my own layout suggestion which has worked well for us, and once
mastered, it makes everyone in the team very productive. Maybe this
can be a separate topic in its own right.

Ravi





On Tue, Mar 2, 2010 at 9:51 AM, Hansen, Mike mike.han...@atmel.com wrote:


 -Original Message-
 From: Bob McConnell [mailto:r...@cbord.com]
 Sent: Tuesday, March 02, 2010 7:52 AM
 To: pan; php-general@lists.php.net
 Subject: RE: [PHP] Re: Best Practices Book, Document, Web Site?

 From: pan
  Hansen, Mike mike.han...@atmel.com wrote in message
 
 news:7941b2693f32294aaf16c26b679a258d0efdc...@csomb01.corp.atm
 el.com...
  Is there a PHP Best Practices Book, Document, or web site that has
  information similar to Perl Best Practices but for PHP?
 
  Yeah, it's hard to find this stuff.
 
  A google search on {+Best Practices +PHP} returned only
  4,340,000 hits.
 
  Maybe, some day, someone will think to write something up.

 The problem with this method is that scanning these results reveals
 conflicting and contradictory recommendations that are all over the
 place. Some are so old they may not even be valid PHP any
 more. Reading
 even a small subset of these pages is an exercise in frustration. But
 that makes sense as there doesn't appear to be any consistency nor
 consensus within the community, or even within some of the larger
 projects.

 Speaking of consensus, based on a recent discussion on the Perl
 Beginners mailing list, the Perl Best Practices book is now considered
 to be deprecated among the active Perl community. Many of its
 recommendations are obsolete and no longer used. It is long
 past due for
 a major rewrite.

 Bob McConnell

 Yep. Perl Best Practices is due for a rewrite/update. I came across this page 
 that attempts to update it:
 http://www.perlfoundation.org/perl5/index.cgi?pbp_module_recommendation_commentary

 For PHP, I'll stick with the PEAR recommendations and do the best I can with 
 whatever is missing.

 Thanks.

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Re: [PHP] memory efficient hash table extension? like lchash ...

2010-01-25 Thread J Ravi Menon
PHP does expose sys V shared-memory apis (shm_* functions):

http://us2.php.net/manual/en/book.sem.php

If you already have apc installed, you could also try:

http://us2.php.net/manual/en/book.apc.php

APC also allows you to store user specific data too (it will be in a
shared memory).

Haven't tried these myself, so I would do some quick tests to ensure
if they meet your performance requirements. In theory, it should be
faster than berkeley-db like solutions (which is also another option
but it seems something similar like MongoDB was not good enough?).

I  am curious to know if someone here has run these tests. Note that
with memcached installed locally (on the same box running php), it can
be surprisingly efficient - using pconnect(),  caching the handler in
a static var for a given request cycle etc...

Ravi






On Sun, Jan 24, 2010 at 9:39 AM, D. Dante Lorenso da...@lorenso.com wrote:
 shiplu wrote:

 On Sun, Jan 24, 2010 at 3:11 AM, D. Dante Lorenso da...@lorenso.com
 wrote:

 All,

 I'm loading millions of records into a backend PHP cli script that I
 need to build a hash index from to optimize key lookups for data that
 I'm importing into a MySQL database.  The problem is that storing this
 data in a PHP array is not very memory efficient and my millions of
 records are consuming about 4-6 GB of ram.


 What are you storing? An array of row objects??
 In that case storing only the row id is will reduce the memory.

 I am querying a MySQL database which contains 40 million records and mapping
 string columns to numeric ids.  You might consider it normalizing the data.

 Then, I am importing a new 40 million records and comparing the new values
 to the old values.  Where the value matches, I update records, but where
 they do not match, I insert new records, and finally I go back and delete
 old records.  So, the net result is that I have a database with 40 million
 records that I need to sync on a daily basis.

 If you are loading full row objects, it will take a lot of memory.
 But if you just load the row id values, it will significantly decrease
 the memory amount.

 For what I am trying to do, I just need to map a string value (32 bytes) to
 a bigint value (8 bytes) in a fast-lookup hash.

 Besides, You can load row ids in a chunk by chunk basis. if you have
 10 millions of rows to process. load 1 rows as a chunk. process
 them then load the next chunk.  This will significantly reduce memory
 usage.

 When importing the fresh 40 million records, I need to compare each record
 with 4 different indexes that will map the record to existing other records,
 or into a group_id that the record also belongs to.  My current solution
 uses a trigger in MySQL that will do the lookups inside MySQL, but this is
 extremely slow.  Pre-loading the mysql indexes into PHP ram and processing
 that was is thousands of times faster.

 I just need an efficient way to hold my hash tables in PHP ram.  PHP arrays
 are very fast, but like my original post says, they consume way too much
 ram.

 A good algorithm can solve your problem anytime. ;-)

 It takes about 5-10 minutes to build my hash indexes in PHP ram currently
 which makes up for the 10,000 x speedup on key lookups that I get later on.
  I just want to not use the whole 6 GB of ram to do this.   I need an
 efficient hashing API that supports something like:

        $value = (int) fasthash_get((string) $key);
        $exists = (bool) fasthash_exists((string) $key);
        fasthash_set((string) $key, (int) $value);

 Or ... it feels like a memcached api but where the data is stored locally
 instead of accessed via a network.  So this is how my search led me to what
 appears to be a dead lchash extension.

 -- Dante

 --
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 da...@lorenso.com
 972-333-4139

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Re: [PHP] memory efficient hash table extension? like lchash ...

2010-01-25 Thread J Ravi Menon
 values were stored, the APC storage began to slow down *dramatically*.  I
 wasn't certain if APC was using only RAM or was possibly also writing to
 disk.  Performance tanked so quickly that I set it aside as an option and
 moved on.
IIRC, i think it is built over shm and there is no disk backing store.


 memcached gives no guarantee about data persistence.  I need to have a hash
 table that will contain all the values I set.  They don't need to survive a
 server shutdown (don't need to be written to disk), but I can not afford for
 the server to throw away values that don't fit into memory.  If there is a
 way to configure memcached guarantee storage, that might work.

True but the lru policy only kicks in lazily. So if you ensure that
you never hit near the max allowed limit (-m option), and you store
your key-val pairs with no expiry, it will be present till the next
restart. So essentially you would have to estimate the value for the
-m option to big enough to accommodate all possible key-val pairs (the
evictions counter in memcached stats should remain 0). BTW, I have
seen this implementation behavior in 1.2.x series but not sure it is
necessarily guaranteed in future versions.

Ravi



On Mon, Jan 25, 2010 at 3:49 PM, D. Dante Lorenso da...@lorenso.com wrote:
 J Ravi Menon wrote:

 PHP does expose sys V shared-memory apis (shm_* functions):
 http://us2.php.net/manual/en/book.sem.php


 I will look into this.  I really need a key/value map, though and would
 rather not have to write my own on top of SHM.


 If you already have apc installed, you could also try:
 http://us2.php.net/manual/en/book.apc.php
 APC also allows you to store user specific data too (it will be in a
 shared memory).


 I've looked into the apc_store and apc_fetch routines:
 http://php.net/manual/en/function.apc-store.php
 http://www.php.net/manual/en/function.apc-fetch.php
 ... but quickly ran out of memory for APC and though I figured out how to
 configure it to use more (adjust shared memory allotment), there were other
 problems.  I ran into issues with logs complaining about cache slamming
 and other known bugs with APC version 3.1.3p1.  Also, after several million
 values were stored, the APC storage began to slow down *dramatically*.  I
 wasn't certain if APC was using only RAM or was possibly also writing to
 disk.  Performance tanked so quickly that I set it aside as an option and
 moved on.


 Haven't tried these myself, so I would do some quick tests to ensure
 if they meet your performance requirements. In theory, it should be
 faster than berkeley-db like solutions (which is also another option
 but it seems something similar like MongoDB was not good enough?).


 I will run more tests against MongoDB.  Initially I tried to use it to store
 everything.  If I only store my indexes, it might fare better. Certainly,
 though, running queries and updates against a remote server will always be
 slower than doing the lookups locally in ram.


 I  am curious to know if someone here has run these tests. Note that
 with memcached installed locally (on the same box running php), it can
 be surprisingly efficient - using pconnect(),  caching the handler in
 a static var for a given request cycle etc...

 memcached gives no guarantee about data persistence.  I need to have a hash
 table that will contain all the values I set.  They don't need to survive a
 server shutdown (don't need to be written to disk), but I can not afford for
 the server to throw away values that don't fit into memory.  If there is a
 way to configure memcached guarantee storage, that might work.

 -- Dante


 On Sun, Jan 24, 2010 at 9:39 AM, D. Dante Lorenso da...@lorenso.com
 wrote:

 shiplu wrote:

 On Sun, Jan 24, 2010 at 3:11 AM, D. Dante Lorenso da...@lorenso.com
 wrote:

 All,

 I'm loading millions of records into a backend PHP cli script that I
 need to build a hash index from to optimize key lookups for data that
 I'm importing into a MySQL database.  The problem is that storing this
 data in a PHP array is not very memory efficient and my millions of
 records are consuming about 4-6 GB of ram.

 What are you storing? An array of row objects??
 In that case storing only the row id is will reduce the memory.

 I am querying a MySQL database which contains 40 million records and
 mapping
 string columns to numeric ids.  You might consider it normalizing the
 data.

 Then, I am importing a new 40 million records and comparing the new
 values
 to the old values.  Where the value matches, I update records, but where
 they do not match, I insert new records, and finally I go back and delete
 old records.  So, the net result is that I have a database with 40
 million
 records that I need to sync on a daily basis.

 If you are loading full row objects, it will take a lot of memory.
 But if you just load the row id values, it will significantly decrease
 the memory amount.

 For what I am trying to do, I just need to map a string value (32 bytes

Re: [PHP] Object Oriented Programming question

2010-01-20 Thread J Ravi Menon
Hi Bob,

[Couldn't resist jumping into this topic :)]

Even if you look at traditional unix (or similar) kernel internals,
although they tend to use functional paradigms, they do have a
OOP-like flavor. Example:

Everything in a unix system is a 'file' (well not really with
networking logic, but it is one of the most important abstractions).
There is a notion of a 'abstract' base class 'file', and then there
are different 'types' of files - regular, directory, devices etc... So
you 'instantiate' a specific 'concrete' object when dealing with a
specific file. What are the methods that apply to all files? There is
open(), close(), read(), write(), ioctl() etc...  Not all methods are
valid for certain kinds of files - e.g. usually you don't write() to a
keyboard device.

In unix and C, the OOP is modeled using structs (to store various
attributes, or data members), and each struct tends to have
'pointer-to-functions' (listed above in case of files) to actual
implementation on how to deal with such objects in the system.

In fact the device-driver framework in unix can be thought of as an
excellent example of polymorphism where a table stores all the
specific functions that operate on the device.

Grouping data and its associated operations is one of the hallmarks of
OOP. In C, there is no *direct* support to express such groupings
where as in C++ (and other OOP languages), there is direct support via
notion of 'classes'  to express such relationships.

I would recommend this book: 'The design and evolution of C++' by
Bjarne Stroustrup where such topics are discussed more in depth.

Hope this helps.

Ravi




On Wed, Jan 20, 2010 at 8:31 AM, Bob McConnell r...@cbord.com wrote:
 From: tedd

 At 10:26 AM -0500 1/19/10, Bob McConnell wrote:
 Some problems will fit into it, some don't.

 I teach OOP thinking at the local college and haven't run into a
 problem that doesn't fit. For example, in my last class I had a woman
 who wanted to pick out a blue dress for her upcoming wedding
 anniversary. The class worked out the problem with a OOP solution.

 Hi Tedd,

 Here's one you can think about. I have a box, purchased off the shelf,
 with multiple serial ports and an Ethernet port. It contains a 68EN383
 CPU with expandable flash and RAM. The firmware includes a simple driver
 application to create extended serial ports for MS-Windows, but allows
 it to be replaced with a custom application. The included SDK consists
 of the gcc cross-compiler and libraries with a Xinu kernel and default
 drivers for a variety of standard protocols.

 I need to build a communications node replacing the default drivers with
 custom handlers for a variety of devices. It must connect to a server
 which will send it configuration messages telling it what hardware and
 protocols will be connected to each port. The Xinu package includes
 Posix threads.

 In the past 23 years I have solved this problem six times with five
 different pieces of hardware. But I still don't see how to apply OOP to
 it.

 

 Some people can look at problems and see objects and some can't.

 That's for certain -- but in time just about everyone can understand
 the basic concepts of OOP.

 Understanding basic concepts and understanding how to map them on to
 real problems are two entirely different skill sets. I understand the
 concepts, they just don't make any sense to me. All of the definitions
 are backwards from the way I learned to evaluate problems. I feel like a
 carpenter trying to figure out how to use a plumber's toolbox. There are
 some things in there I think I recognize, but most of it is entirely
 foreign to me.

 Cheers,

 Bob McConnell

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Re: [PHP] Re: PHP programming strategy; lots of little include files, or a few big ones?

2010-01-08 Thread J Ravi Menon
Hi,

A note on bytecode caching and include/include_once performance. A
while ago when we were profiling our code, we did notice that file
includes do take a noticeable percentage of overall overhead (enough
for us to look into it more deep). We are using apc cache on a
standard LAMP platform (linux 2.6 series, apache 2.2x and PHP 5
series).

Our includes were using 'relative' paths (e.g.  include_once
'../common/somefile.inc' or include_once 'lib/somefuncs.inc' ) and
within APC cache logic, it resolves such relative paths to absolute
paths via a realpath() calls. This can be fairly file-system intensive
(lots of syscalls like stat() and readlink() to resolve symlinks
etc...). APC uses absolute paths as key into the opcode cache.

This gets worse if it has to find your files via the 'ini_path'
setting (and most of your library or common code is not in the first
component or so ).

So from APC cache perspective, it is most efficient if your include
paths are all absolute (realpath() logic is skipped) - e.g.:

include_once $BASE_DIR . '/common/somefile.inc';
include_once $BASE_DIR . '/lib/somefuncs.inc';

and so on where '$BASE_DIR' could be set via apache Setenv directives
( $_SERVER['BASE_DIR'] or even hardcoded all over the place).

There were other issues with include vs include_once and apc cache,
but I don't recall why there were performance difference (with include
only even with relative paths, the performance was better, but
managing dependencies is to cumbersome).

Not sure how other bytecode cache handles relative paths but I suspect
it has to do something similar.

From a pure code readability point of view and more automated
dependency management (as close to compiled languages as possible), I
do favor include_once/require_once strategy with absolute path
strategy, but it is not unheard of where to squeeze out maximal
performance, a giant single 'include' is done. Sometimes this is done
on prod. systems where a parser goes through and generates this big
include file, and ensure it is placed somewhere in the beginning the
main 'controller.php' (MVC model) and all other includes stripped off.

Hope this helps in making your decision.

Ravi


On Fri, Jan 8, 2010 at 8:59 AM, Robert Cummings rob...@interjinn.com wrote:
 clanc...@cybec.com.au wrote:

 On Thu, 07 Jan 2010 22:48:59 -0500, rob...@interjinn.com (Robert Cummings)
 wrote:

 clanc...@cybec.com.au wrote:

 Thank you all for your comments. I did not know about bytecode caches.
 They're an
 interesting concept, but if I am interpreting the paper
 http://itst.net/654-php-on-fire-three-opcode-caches-compared correctly
 they only double
 the average speed of operation, which is rather less than I would have
 anticipated.

 I strongly advise that you take the time to try a bytecode cache. Within
 linux environments I am partial to eaccelerator. In IIS environments I now
 use WinCache from Microsoft. From my own observations with a multitude of
 different types of PHP web applications I find that the speed gain is closer
 to 5 times faster on average.

 Five times faster is certainly more attractive than twice as fast. But
 under what
 circumstances is this achieved? Unfortunately these days it is difficult
 to find any solid
 information on how things actually work, but my impression is that caches
 only work for
 pages which are frequently accessed. If this is correct, and (as I
 suspect) somebody looks
 at my website once an hour, the page will not be in the cache, so it won't
 help. Also one
 of the more popular parts of this website is my photo album, and for this
 much of the
 access time will be the download time of the photos. Furthermore as each
 visitor will look
 at a different set of photos, even with heavy access it is unlikely that
 any given photo
 would be in a cache.

 A particular cache of bytecode is usually pushed out of memory when the
 configured maximum amount of memory for the bytecode cache is about to be
 exceeded. Additionally, the particular cache that gets eliminated is usually
 the oldest or least used cache. Given this, and your purported usage
 patterns, your pages will most likely remain in the cache until such time as
 you update the code or restart the webserver.

 Despite these comments the access times for my websites seem to be pretty
 good --
 certainly a lot better than many commercial websites -- but have a look at
 http://www.corybas.com/, and see what you think. (I am in the process of
 updating this,
 and know that the technical notes are not currently working, but there is
 plenty there to
 show you what I'm trying to do.)

 I'm not disputing your good enough statistics. I'm merely asserting that a
 bytecode cache will resolve your concerns about file access times when your
 code is strewn across many compartmentalized files. In addition, I am
 advising that it is good practice to always install a bytecode cache. One of
 the first things I do when setting up a new system is to ensure I put

Re: [PHP] Re: PHP programming strategy; lots of little include files, or a few big ones?

2010-01-08 Thread J Ravi Menon
Sorry forgot to mention that we used APC with apc.stat turned off
which will give a little bit more performance gain, but it does mean
flushing the cache on every code push (which is trivial).

Ravi


On Fri, Jan 8, 2010 at 11:30 AM, J Ravi Menon jravime...@gmail.com wrote:
 Hi,

 A note on bytecode caching and include/include_once performance. A
 while ago when we were profiling our code, we did notice that file
 includes do take a noticeable percentage of overall overhead (enough
 for us to look into it more deep). We are using apc cache on a
 standard LAMP platform (linux 2.6 series, apache 2.2x and PHP 5
 series).

 Our includes were using 'relative' paths (e.g.  include_once
 '../common/somefile.inc' or include_once 'lib/somefuncs.inc' ) and
 within APC cache logic, it resolves such relative paths to absolute
 paths via a realpath() calls. This can be fairly file-system intensive
 (lots of syscalls like stat() and readlink() to resolve symlinks
 etc...). APC uses absolute paths as key into the opcode cache.

 This gets worse if it has to find your files via the 'ini_path'
 setting (and most of your library or common code is not in the first
 component or so ).

 So from APC cache perspective, it is most efficient if your include
 paths are all absolute (realpath() logic is skipped) - e.g.:

 include_once $BASE_DIR . '/common/somefile.inc';
 include_once $BASE_DIR . '/lib/somefuncs.inc';

 and so on where '$BASE_DIR' could be set via apache Setenv directives
 ( $_SERVER['BASE_DIR'] or even hardcoded all over the place).

 There were other issues with include vs include_once and apc cache,
 but I don't recall why there were performance difference (with include
 only even with relative paths, the performance was better, but
 managing dependencies is to cumbersome).

 Not sure how other bytecode cache handles relative paths but I suspect
 it has to do something similar.

 From a pure code readability point of view and more automated
 dependency management (as close to compiled languages as possible), I
 do favor include_once/require_once strategy with absolute path
 strategy, but it is not unheard of where to squeeze out maximal
 performance, a giant single 'include' is done. Sometimes this is done
 on prod. systems where a parser goes through and generates this big
 include file, and ensure it is placed somewhere in the beginning the
 main 'controller.php' (MVC model) and all other includes stripped off.

 Hope this helps in making your decision.

 Ravi


 On Fri, Jan 8, 2010 at 8:59 AM, Robert Cummings rob...@interjinn.com wrote:
 clanc...@cybec.com.au wrote:

 On Thu, 07 Jan 2010 22:48:59 -0500, rob...@interjinn.com (Robert Cummings)
 wrote:

 clanc...@cybec.com.au wrote:

 Thank you all for your comments. I did not know about bytecode caches.
 They're an
 interesting concept, but if I am interpreting the paper
 http://itst.net/654-php-on-fire-three-opcode-caches-compared correctly
 they only double
 the average speed of operation, which is rather less than I would have
 anticipated.

 I strongly advise that you take the time to try a bytecode cache. Within
 linux environments I am partial to eaccelerator. In IIS environments I now
 use WinCache from Microsoft. From my own observations with a multitude of
 different types of PHP web applications I find that the speed gain is 
 closer
 to 5 times faster on average.

 Five times faster is certainly more attractive than twice as fast. But
 under what
 circumstances is this achieved? Unfortunately these days it is difficult
 to find any solid
 information on how things actually work, but my impression is that caches
 only work for
 pages which are frequently accessed. If this is correct, and (as I
 suspect) somebody looks
 at my website once an hour, the page will not be in the cache, so it won't
 help. Also one
 of the more popular parts of this website is my photo album, and for this
 much of the
 access time will be the download time of the photos. Furthermore as each
 visitor will look
 at a different set of photos, even with heavy access it is unlikely that
 any given photo
 would be in a cache.

 A particular cache of bytecode is usually pushed out of memory when the
 configured maximum amount of memory for the bytecode cache is about to be
 exceeded. Additionally, the particular cache that gets eliminated is usually
 the oldest or least used cache. Given this, and your purported usage
 patterns, your pages will most likely remain in the cache until such time as
 you update the code or restart the webserver.

 Despite these comments the access times for my websites seem to be pretty
 good --
 certainly a lot better than many commercial websites -- but have a look at
 http://www.corybas.com/, and see what you think. (I am in the process of
 updating this,
 and know that the technical notes are not currently working, but there is
 plenty there to
 show you what I'm trying to do.)

 I'm not disputing your good enough statistics. I'm merely asserting

[PHP] Including Due by in an email sent from PHP program

2009-06-24 Thread Ravi
Hi: does anyone know how to include a Due by attribute with a dare in 
an email that is sent from a PHP script. This value is acts as an 
reminder when the email is in Outlook.


TIA

--
Thank you,
RaVi



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[PHP] ruby / rails within a php site

2009-03-03 Thread ravi Ruddarraju
I have a regular php site. I also have a ruby / rails application. Now I
want to put the HTML generated by ruby / rails application within a div
section of a php page. This should be similar to like calling a php function
within a div section, which would produce the HTML output of the php
function.
Is such a thing possible between php and ruby / rails? Any help will be
appreciated.

Thanks
ravi


Re: [PHP] System errno in PHP

2008-02-22 Thread Ravi Menon
Hi,

I also ran into the same issue with file and socket apis, and for now, I just
hack it like ( for linux 2.6 systems ):

class Errno
{
  const EINTR=  4;
  const EIO  =  5;
  const EINVAL   =  22;
  const ENODATA  =  61;
  const EBADMSG  =  74;
  const EOPNOTSUPP   =  95;
  const ECONNRESET   =  104;
  const ENOTCONN =  107;
  const ETIMEDOUT=  110;
  const EALREADY =  114;
  const EINPROGRESS  =  115;

  // useful static methods that use posix_strerror()
  // and socket_strerror() to return strings for logging purposes...
  .
  .

}

Clearly this is not portable, but I am betting that usually on the
same kernel releases, they
don't usually change these numbers around.

Having PHP expose these useful constants in a portable manner would be
a big plus.

Thanks,
Ravi


On Thu, Feb 21, 2008 at 9:04 AM, Richard Lynch [EMAIL PROTECTED] wrote:
 On Wed, February 20, 2008 2:56 am, Michal Maras wrote:
   I have read http://php.net/fopen from top to bottom, but I could not
   find
   how to get  system error number.
   With set_error_handler I can get string for example
  
   fopen(hmc_configuration.cfg)
   
 [function.fopenhttp://ds63450.mspr.detemobil.de/%7Emmaras/HMC/function.fopen]:
   failed to open stream: Permission denied
  
   but I need integer number not string, because string error messages
   depends
   on locale setting.
Of course, I can test some conditions before fopen, but it is not
   enough
   for me.

  Put in a Feature Request to expose the error number from the OS, I
  guess...

  http://bugs.php.net/

  It *seems* like it ought to be reasonable enough to this naive user.


  --
  Some people have a gift link here.
  Know what I want?
  I want you to buy a CD from some indie artist.
  http://cdbaby.com/from/lynch
  Yeah, I get a buck. So?

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[PHP] curl timeout vs socket timeout

2008-01-28 Thread Ravi Menon
Hi,

We have two versions of client code, one using curl, and other one
using raw sockets via fsockopen(), and
we use the following code to set the i/o timeouts:

1) curl:

.
.
curl_setopt( $handle, CURLOPT_TIMEOUT, 1 );
.
.
$resp = curl_exec($handle)


2) sockets:

stream_set_timeout( $sock, 1);

Here we use frwrite() and fread() to send the request and read the
response respectively.


In (1),  how is the timeout applied - is it:

a) timeout includes the entire curl_exec() call - the combined socket
write()  ( to send the request ) and
the  read() ( read the response ) calls.

or

b) timeout is independently applied to write() and read() end respectively.

Some of our tests seem to indicate it is (a).


In (2), I am assuming the stream timeout is applied at each i/o call
independently for fwrite() and fread() - I am pretty
much certain on this as this is how it would map to underlying C calls.


It will be good to get a confirmation on our doubts.

Thanks,
Ravi

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[PHP] apc and cli

2007-12-12 Thread Ravi Menon
Hi,

We have long running daemons written in php ( cli, non-apache
contexts) with the typical pattern:

while( !$shutdown )
{
$c = new SomeClass;

$c-process();
}

For performance reasons, would it help if apc.enable_cli is turned on:

  apc.enable_cli  integer

Mostly for testing and debugging. Setting this enables APC for the
CLI version of PHP. Normally you wouldn't want to create, populate and
tear down the APC cache on every CLI request, but for various test
scenarios it is handy to be able to enable APC for the CLI version of
APC easily.


I am slightly confused by the statement - 'Mostly for testing and
debugging.' .

On each loop iteration, does php recompile the code in 'SomeClass' (
and all its dependencies ) or it is really cached ( as it has seen the
class code once ).

If there is a php internals document on such issues, do let me know.

Thanks,
Ravi

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Re: [PHP] apc and cli

2007-12-12 Thread Ravi Menon
Thanks for clarifying my doubts - the steps below sounds right to me.

I was just considering the overall perf. of such php daemons and
whether we can get some free perf. boost
with that apc setting.

Ravi


On Dec 12, 2007 12:19 PM, Richard Lynch [EMAIL PROTECTED] wrote:

 On Wed, December 12, 2007 1:33 pm, Ravi Menon wrote:
  We have long running daemons written in php ( cli, non-apache
  contexts) with the typical pattern:
 
  while( !$shutdown )
  {
  $c = new SomeClass;
 
  $c-process();
  }
 
  For performance reasons, would it help if apc.enable_cli is turned on:
 
apc.enable_cli  integer
 
  Mostly for testing and debugging. Setting this enables APC for the
  CLI version of PHP. Normally you wouldn't want to create, populate and
  tear down the APC cache on every CLI request, but for various test
  scenarios it is handy to be able to enable APC for the CLI version of
  APC easily.
 
 
  I am slightly confused by the statement - 'Mostly for testing and
  debugging.' .
 
  On each loop iteration, does php recompile the code in 'SomeClass' (
  and all its dependencies ) or it is really cached ( as it has seen the
  class code once ).
 
  If there is a php internals document on such issues, do let me know.

 The following is almost-for-sure correct, but I wouldn't swear in
 court...

 Step 0. Read PHP/HTML source code.
 Step 1. PHP uses a 2-pass compiler and generates byte-code.
 Step 2. The byte-code is then feed to the executer.
 Step 3. Executer spews output (or crashes or whatever)

 APC and other caches add a Step 1A., which stores the byte-code in RAM
 under the filename (or full path, depending on config) as a key.

 Therefore, adding APC will not affect in any way the while loop --
 It's compiled once in Step 1, and that's it.

 If you re-run the same script again and again, however, APC in CLI
 might be able to keep the script around and avoid a hit to the disk to
 LOAD the script (Step 0 above) as well as avoiding the 2-pass
 compilation to byte-code (Step 1 above).

 NOTE:
 Step 0 is the REALLY expensive step where APC et al are REALLY
 boosting performance.

 APC et al *could* just insert step 0A and store the PHP source, and
 have ALMOST the same benefits.

 However, storing the compiled version at Step 1A gets you some free
 gravy in not re-compiling the PHP source to byte-code, so they do that
 because, well, it's essentially FREE and saves a few more cpu cycles.

 But the REAL boost, again, is from not hammering the hard drive (slow)
 to load PHP source into RAM, Step 0.

 PS
 If you are really concerned about the constructor of SomeClass being
 expensive, time it and see.

 YOU may be doing something incredibly expensive there like
 re-connecting to the database (slow!) each time.

 You may also not even NEED a whole new SomeClass every time -- Perhaps
 you could just make a singleton and then reset its values and call
 process() with the new values instead of building up a whole new
 instance each time.

 --
 Some people have a gift link here.
 Know what I want?
 I want you to buy a CD from some indie artist.
 http://cdbaby.com/from/lynch
 Yeah, I get a buck. So?



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Re: [PHP] php.ini include_path and symlinks

2007-11-07 Thread Ravi Menon

 Are you using a compile cache like eaccelerator or APC etc? Sometimes
 it's the cache that doesn't realize things have changed. I use a symlink
 switcher for version releases also and I always flush the eaccelerator
 directory when I do that.
Yes we use APC ( with apc.stat on ). This was the case even before we introduced
include_path, but earlier, all the symlinks were to a relative path (
e.g. libraries --- ../libs/.. ).

Thanks for the pointer - I will look into this.

Ravi





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[PHP] php.ini include_path and symlinks

2007-11-06 Thread Ravi Menon
Hi,

We run php 5.2.0 + apache 2.2. with apc turned on ( apc.stat also on
). Earlier we did not use the php.ini include_path setting. We relied
on some symlinks for our common code
so that require_once works correctly.

This worked fine and during code releases we flipped the main
'release' symlink atomically, without restarting apache.

Later we decided to use php.ini include path to refactor common code
more cleanly and it looks like:

include_path=.:/some/dir/current:..

Now 'current' above is a symlink.

When we push out a new release the current is updated atomically and
apache is not restarted.

This seems to pick the new changes and I ran some manual tests to
confirm. However occasionally I see weird
errors where it seems php could be resolving the symlink to the actual
dir. at apache startup, and it assumes
that old dir. When a new release goes out, we see 'fatal redeclare errors' etc..

Restarting apache (TERM and not USR1) seems to fix it.

We could update our install scripts to restart apache, but I am just
curious, is this really necessary?

Is there anyway to prevent php from not resolving symlinks but use
them as it is in the include_path?

Thanks,
Ravi

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[PHP] Re: newbie questions

2007-10-21 Thread Ravi


That was very very helpful. Thanks a ton!

One more question. For every request, I am sending a redirect back to 
the user and the browser takes the user to another url. The problem is 
that the browser is not redirecting until the script finishes. Even if I 
do flush(), the browser waits til script ends. Is there a way to force 
browser to redirect and not wait for the script to end?


In Java I can think of many ways, one is to use threads, hand of data to 
another thread and return the response. Another solution would be to 
store data in memory (static variable) and update only after every 100 
requests.


Is any of this possible in PHP?


M. Sokolewicz wrote:

Ravi wrote:


Guys, I am fairly new to PHP. Here are a few questions, if anybody can 
answer it will help me get started. Thanks


I am trying to build a website and I would like to do the following in 
my scripts


1. I want to return response to the browser and AFTERWARDS make a log 
entry in to a database. I need this so user can experience a fast 
response.
There is no before and after. Everything you do happens during (part 
of) the response. But you can just output your data, whatever it may be, 
flush() it and then log it via the same script. Your user won't notice a 
thing (Hell, even without the flush your user won't notice it probably).


2. If the database update fails, I want to ignore it (since it is just 
log entry). Something like try-catch construct in Java. This is more 
important if item1 mentioned above is not possible. Essentially 
whether I make a database entry or not, I must return a valid response 
to user.
So ignore it :) If you don't check for errors, you won't see them... 
Makes debugging very annoying, but you won't see em nevertheless. If 
your output is not based on anything from your database-update, then 
there apparently is no need to worry about it.


3. Is there something like connection pool in php? Do usually people 
open/close database connection for every request (I doubt that, it 
sounds really slow).
There is something like that, the persistent connections (ie. via 
mysql_pconnect), but generally people DO open/close connections via the 
same script each and every time the script is executed (this might sound 
very slow, but it's actually not too bad). Using persistent connections 
is not always the best option (and usually doesn't even make much 
sense); there's a good bit of documentation about it in the php docs:

http://www.php.net/manual/en/features.persistent-connections.php

Some code samples or pointers to documentation for the above would 
also be very helpful.

code samples of what exactly ?


Thanks
Ravi




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Re: [PHP] Re: newbie questions

2007-10-21 Thread Ravi


Richard, unfortunately I cannot end the script. I need something like this:

?php
header('Location: http://www.yahoo.com');
// somehow let the browser move to yahoo.com
// now update the database to store some information about user
exit;
?


Richard Heyes wrote:

Ravi wrote:


That was very very helpful. Thanks a ton!

One more question. For every request, I am sending a redirect back to 
the user and the browser takes the user to another url. The problem is 
that the browser is not redirecting until the script finishes. Even if 
I do flush(), the browser waits til script ends. Is there a way to 
force browser to redirect and not wait for the script to end?


In Java I can think of many ways, one is to use threads, hand of data 
to another thread and return the response. Another solution would be 
to store data in memory (static variable) and update only after every 
100 requests.


Not having read the rest of the thread, you could call exit just after 
the redirect header is sent, eg:


?php
header('Location: http://www.yahoo.com');
exit;
?

Richard Heyes
+44 (0)800 0213 172
http://www.websupportsolutions.co.uk

Knowledge Base and HelpDesk software
that can cut the cost of online support



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[PHP] Re: newbie questions

2007-10-21 Thread Ravi


Maybe you have a point. I will do performance testing and then decide if 
I should try to optimize to that point.


Yes the logging is just one simple insert into the database.

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[PHP] newbie questions

2007-10-20 Thread Ravi


Guys, I am fairly new to PHP. Here are a few questions, if anybody can 
answer it will help me get started. Thanks


I am trying to build a website and I would like to do the following in 
my scripts


1. I want to return response to the browser and AFTERWARDS make a log 
entry in to a database. I need this so user can experience a fast response.


2. If the database update fails, I want to ignore it (since it is just 
log entry). Something like try-catch construct in Java. This is more 
important if item1 mentioned above is not possible. Essentially whether 
I make a database entry or not, I must return a valid response to user.


3. Is there something like connection pool in php? Do usually people 
open/close database connection for every request (I doubt that, it 
sounds really slow).



Some code samples or pointers to documentation for the above would also 
be very helpful.


Thanks
Ravi

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[PHP] call to pprofp not working for PHP APD

2006-06-12 Thread Ravi Jethwa
Hello,

 

I was wondering if somebody could provide some advice on where I might
be going wrong if I am receiving the following error:

 

bash: /usr/bin/pprofp: /usr/local/bin/php: bad interpreter: No such
file or directory.

 

When I try to call the pprofp program in order to format the profile
data using APD.

 

Thanks for you help.  


Ravi Jethwa
OPUS MEDIA PLC - Developer 

t

+44 (0)845 122 3180

f

+44 (0)845 122 3190

e

[EMAIL PROTECTED]

w

www.opusmediaplc.com

a

4th Floor, 24 Buckingham Gate, London, SW1E 6LB

 



This email and its attachments are intended solely for the addressee.
Any views or opinions presented are those of the originator, unless
otherwise stated, and do not necessarily represent those of Opus Media
plc. If you received this in error, please notify us immediately and
then delete the email and any copies of it. If you are not the intended
recipient, please note that any distribution, copying or use of this
information is strictly prohibited.

 



Re: [PHP] RE: php-general Digest 17 Oct 2005 10:35:46 -0000 Issue 3742

2005-10-17 Thread Ravi
I just had a small doubt..Is it possible to write JavaScript through PHP???

On 10/17/05, Aftab Alam [EMAIL PROTECTED] wrote:
 hi,
 any one can help me

 i want to generate Pdf file using php.
 how can i  what tools is required for this.






 Regards,
   _

 Aftab Alam




 -Original Message-
 From: [EMAIL PROTECTED]
 [mailto:[EMAIL PROTECTED]
 Sent: Monday, October 17, 2005 4:06 PM
 To: php-general@lists.php.net
 Subject: php-general Digest 17 Oct 2005 10:35:46 - Issue 3742



 php-general Digest 17 Oct 2005 10:35:46 - Issue 3742

 Topics (messages 224207 through 224218):

 Funky array question
 224207 by: Brian Dunning
 224209 by: Minuk Choi
 224210 by: Jordan Miller
 224211 by: Jordan Miller
 224212 by: Jordan Miller

 Re: editor
 224208 by: yangshiqi1089

 a couple of problems with PHP form
 224213 by: Bruce Gilbert
 224218 by: Mark Rees

 Re: OPTIMIZING - The fastest way to open and show a file
 224214 by: Ruben Rubio Rey
 224215 by: Ruben Rubio Rey
 224216 by: ac

 can't get IIS to run php if the script is not directly under wwwroot
 224217 by: tony yau

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[PHP] Automatically generated emails

2005-08-29 Thread Ravi Gogna
This is probably a really simple question, but I can't work out what to 
write! I've written a fairly standard HTML form and I would like an 
email to be generated as soon as the user clicks 'Submit'. Can you help?!


Thanks

Ravi Gogna

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Re: [PHP] Automatically generated emails

2005-08-29 Thread Ravi Gogna
Nice to know that newbies are well looked after on these lists. If you 
didn't wanna help, you could have not clicked reply


Jay Blanchard wrote:


[snip]
Yes.
[/snip]

Watch out, this'll start a flood of why can't you be nice? e-mail


John, any relatives still in LA?

 



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[PHP] Redisplaying information from a HTML form

2005-08-10 Thread Ravi Gogna

Hi there

I'm absolutely new at this so forgive me if none of it makes any sense! 
I'm trying to write a page which lets you apply for tickets. I've 
written it in PHP and used simple variable names for all the input 
fields. Upon clicking submit, I want the form to be checked for 
incorrect formats and blank fields.


I've managed to write the checking program in such a way that clicking 
submit launches an 'error' page which displays at the top of the page 
which field is wrong, and then redisplays the form. (The form redisplay 
is done using a function which uses the variables I used in the HTML 
form page). My problem is this: when the 'error' page comes up all of 
the text boxes will quite happily redisplay the data that was put into 
them, but I have a couple of drop-down boxes and radio buttons which 
lose their value. Is there a way I can make these boxes and buttons 
retain their value?


Thanks

Ravi Gogna

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[PHP] Accessing env variables

2005-04-01 Thread Ravi Natarajan
Hi,

 

I have defined couple of environment variables in one of my apache
module using setenv() at fixups and handler function calls.

 

I have another php module, where I need to access these variables. So I
have defined these variables as global $var1, $var2 ..etc;

 

When I try to access these variables as $var1 and $var2 , they don't
seem to be set, so I am not getting correct values, but they give
correct values when I acess them using getenv() call.

 

I thought that the global command would make the global environment
variables available in the local php code.

 

How to access these environment variables in my php code without using
getenv() call.

 

Thanks

 

Ravi Natarajan

 

 



[PHP] is there any application , by using i can produce php exe files in windows ?

2004-06-20 Thread Ravi
HI,

is there any windows application , by using we can produce standalone php
.exe files ?


--- knowledge is power share it ---

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[PHP] plz help!compiled php but iam still getting old version ???

2004-06-20 Thread Ravi
HI,

existing configuration :
PHP Version 4.3.4 ( default rpm with fedora fc2 install)
Server version: Apache/2.0.49 (default with fedora fc2 install)
Server built:   May  6 2004 07:15:13

NOw i want to install 4.3.3 , so i compiled and install ( with no errors )
if i type  php -v  at shell iam getting correct version *BUT if tried
phpinfo() in browser iam getting still OLD version :( restarted apache but
no use.

please help

- thanks for your time.





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[PHP] Safe mode effect

2004-04-22 Thread Ravi kumar


HI,

goole.com found so many details about safe mode too much to understand.

My hosting provider set php safe mode = enable . so iam unable to use so

many scripts .

can any one give good free image gallery software which will work under

safe mode = enable .

is it true that with apache 2.x version , we can get ride of php safe mode ?

- thanks for your time



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[PHP] setcookie on PHP??

2003-02-12 Thread Balaravi, Bala (Ravi), ALABS
I need to set a cookie within a document in PHP? setcookie didn't work. I guess it 
works only in PHP3  PHP4
Any good ideas??

Thanks
Rave

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[PHP] Date difference

2001-03-31 Thread ravi

Dear Friends,

I am accessing a MySQL database through PHP.

I have to calculate the difference between todays date and the date obtained 
from MySQL database.

The Database string is in the form of \"-mm-dd\".

I have to convert the above string into unix timestamp so that i can calcualte 
the difference between the two time stamps.

Please help me in this regard.

Thanking you,

B. Raveendra Reddy
National Law School of India University

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[PHP] Fwd: Help - removal of trailing zeros from double integer field

2001-01-20 Thread ravi

Dear friends,

I am accessing MySQL database using apache and php.
I have to display a double integer field without trailing zeros.
The number of digits after the decimal point varies.

I have tried searching the archive and did not get any previous questions.

Kindly help me in this regard.

Thanking you.
Sincerely,
Raveendra Reddy B
National Law School
Bangalore
India
E-mail: [EMAIL PROTECTED]

- End forwarded message -

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