php-general Digest 23 Mar 2010 14:50:12 -0000 Issue 6655
php-general Digest 23 Mar 2010 14:50:12 - Issue 6655 Topics (messages 303120 through 303142): PHP to access shell script to print barcodes 303120 by: Rob Gould 303125 by: Jochem Maas 303137 by: Richard Quadling Re: Will PHP ever grow up and have threading? 303121 by: Tommy Pham 303122 by: Teus Benschop 303123 by: Larry Garfield 303124 by: Jochem Maas 303126 by: Rene Veerman 303127 by: Tommy Pham 303128 by: Tommy Pham 303129 by: Per Jessen 303130 by: jose javier parra sanchez 303133 by: Rene Veerman 303136 by: David McGlone 303138 by: Richard Quadling 303140 by: Michael A. Peters Re: Filtering all output to STDERR 303131 by: Marten Lehmann 303135 by: Peter Lind constants STDOUT, STDERR, STDIN not working in 5.2.x? 303132 by: Marten Lehmann 303134 by: Jan G.B. 303141 by: Daniel Egeberg 303142 by: Jan G.B. Re: another question on setting include paths for a project 303139 by: Robert P. J. Day Administrivia: To subscribe to the digest, e-mail: php-general-digest-subscr...@lists.php.net To unsubscribe from the digest, e-mail: php-general-digest-unsubscr...@lists.php.net To post to the list, e-mail: php-gene...@lists.php.net -- ---BeginMessage--- I am trying to replicate the functionality that I see on this site: http://blog.maniac.nl/webbased-pdf-lto-barcode-generator/ Notice after you hit SUBMIT QUERY, you get a PDF file with a page of barcodes. That's _exactly_ what I'm after. Fortunately, the author gives step-by-step instructions on how to do this on this page: http://blog.maniac.nl/2008/05/28/creating-lto-barcodes/ So I've gotten through all the steps, and have created the barcode_with_samples.ps file, and have it hosted here: http://www.winecarepro.com/kiosk/fast/shell/ Notice how the last few lines contain the shell-script that renders the postscript: #!/bin/bash BASE=”100″; NR=$BASE for hor in 30 220 410 do ver=740 while [ $ver -ge 40 ]; do printf -v FNR “(%06dL3)” $NR echo “$hor $ver moveto $FNR (includetext height=0.55) code39 barcode” let ver=$ver-70 let NR=NR+1 done done I need to somehow create a PHP script that executes this shell script. And after doing some research, it sounds like I need to use the PHP exec command, so I do that with the following file: http://www.winecarepro.com/kiosk/fast/shell/printbarcodes.php Which has the following script: ?php $command=http://www.winecarepro.com/kiosk/fast/shell/barcode_with_sample.ps;; exec($command, $arr); echo $arr; ? And, as you can see, nothing works. I guess firstly, I'd like to know: A) Is this PHP exec call really the way to go with executing this shell script? Is there a better way? It seems to me like it's not really executing. B) Can someone try following the 5 steps listed on the website (http://blog.maniac.nl/2008/05/28/creating-lto-barcodes/) and tell me if you have any better luck? It doesn't really sound all that difficult. I'm hosting this on Dreamhost, and I'm not sure if there's some sort of permissions/shell exec feature I need to make this work. I'm not convinced that I really have a functioning Postscript file. My Mac renders Postscript files automatically after downloading with the Preview app, and I'm not seeing any valid data returned. ---End Message--- ---BeginMessage--- Op 3/23/10 3:27 AM, Rob Gould schreef: I am trying to replicate the functionality that I see on this site: http://blog.maniac.nl/webbased-pdf-lto-barcode-generator/ Notice after you hit SUBMIT QUERY, you get a PDF file with a page of barcodes. That's _exactly_ what I'm after. Fortunately, the author gives step-by-step instructions on how to do this on this page: http://blog.maniac.nl/2008/05/28/creating-lto-barcodes/ So I've gotten through all the steps, and have created the barcode_with_samples.ps file, and have it hosted here: http://www.winecarepro.com/kiosk/fast/shell/ Notice how the last few lines contain the shell-script that renders the postscript: #!/bin/bash BASE=”100″; NR=$BASE for hor in 30 220 410 do ver=740 while [ $ver -ge 40 ]; do printf -v FNR “(%06dL3)” $NR echo “$hor $ver moveto $FNR (includetext height=0.55) code39 barcode” let ver=$ver-70 let NR=NR+1 done done I need to somehow create a PHP script that executes this shell script. And after doing some research, it sounds like I need to use the PHP exec command, so I do that with the following file: http://www.winecarepro.com/kiosk/fast/shell/printbarcodes.php Which has the following script: ?php $command=http://www.winecarepro.com/kiosk/fast/shell/barcode_with_sample.ps;; exec($command, $arr); echo $arr; ? And, as you can see, nothing works. I guess firstly, I'd like to
Re: [PHP] Will PHP ever grow up and have threading?
ExecSum:
* +1 for better threading features in PHP.
* overloading = inheritance?
* listreaders plz allow ppl to vent some frustration without
starting a flamewar.
Threading can be implemented in PHP with an
fopen('http://yourserver.com/url')-fread()_all_threads+usleep(50ms)-fclose()+process
loop.
My own newsscraper threads well like this.
The central script figures out what sites to scrape, and the treaded
subsystem makes sure 1 page per site per N seconds is retrieved.
But i've yet to find a way to keep global objects in memory between
http requests, outside $_SESSION, which i believe is just stored to-
and loaded from disk between http requests.
However, now that i think of it, you could have large pieces of
software stay in memory in a single php script that runs forever and
reads commands (as arrays) out of files (on memory disk?) (put there
by thread-scripts) and [the forever running script] outputs to
stdout, which is caught by the thread-scripts, then passed back to the
thread-caller via fread().
I usually use json for such constructs.
But it's a total hack of course, and i have no idea about performance
issues or even timing bugs. it's theoretically possible..
there is NO reason NOT to let
the developer choose WHICH of the list of parameters they want to set in a
function/method call aside from being stubborn! Especially when there are
many parameters and you can't overload functions like you can in Java
well you could shove all the params in an array, then shove that to
the function called, _or_ a preparatory function that calls the old
function.
as for overloading functions, i think with a bit of cleverness you can
come up with a class / set of functions that simulate overloading of
functions and even inheritance. i for a fact simulate polymorphism
with $functionName_fromPluginX ($params).
i smell all the ingredients that would allow you to overload functions
in php aswell. you'd just have to call things a bit differently,
perhaps like
$var = $overloadingManager-call ('functionName',
'context(object-instance-id)', $param1, $param2).
Better yet; aren't OOP's (and php5's) inheritance features (for
classes) similar to functions overloading? k, it forces you to group
such functions into an object, and derivations into subobjects, but
that's not a show-stopper at all.. You can always ignore the object
boundary and have 1 object-tree for all functions that require
overloading.
lastly, about the politics of this mail-thread;
imo, it's the ones who open the counterattack who start the
flamewar, out of something that is clearly in this case just venting
some frustration with at least partially valid reasons..
imo, it would be wiser to have offered the guy some actual tips and/or
a casual hey, you could've phrased it friendlier, given the fact that
php costs nothing and all, dude, rather than grabbing the
flamethrower and setting it to vaporize.
On Tue, Mar 23, 2010 at 1:02 AM, Daevid Vincent dae...@daevid.com wrote:
I've been using PHP for a decade or so (since PHP/FI) and love it. The one
problem that seems to always keep coming back on enterprise level projects
is the lack of threading. This always means we have to write some back-end
code in Ruby or Java or C/C++ and some hacky database layer or DBUS or
something to communicate with PHP.
Will PHP ever have proper threading? It would sure let the language take
the next logical leap to writing applications and daemons. I love the idea
that Rails/Ruby have where you can just load objects in memory once and
keep using them from page to page (this is NOT the same as a $_SESSION,
it's way more flexible and powerful).
But more importantly, in one application I'm working on, we need to connect
to an Asterisk system for the IVR abilities. This means we have Ruby doing
all that fun stuff and PHP doing the web stuff, but we're also duplicating
a LOT of work. Both Ruby AND PHP now have to have ORMs for the user who's
calling in, advertisements served, products shown, etc. We could have used
Rails for the web portion, but I want to stay with PHP and I'm sure I don't
have to explain to you PHPers why that is. Without threads, PHP just isn't
even an option or only one user would be able to call in at a time.
The pcntl stuff is not feasible. It's a hack at best. Spawning multiple
scripts is also a recipie for disaster.
When will the PHP core-devs (Zend?) realize that PHP is much more than a
hook to a database. It's much more than web pages.
Is this a case of it's too hard? Or is it a case of PHP core developers
just being douche-bags like they are about the whole
foo($set_this_parameter=$bar); bull$hit??! (there is NO reason NOT to let
the developer choose WHICH of the list of parameters they want to set in a
function/method call aside from being stubborn! Especially when there are
many parameters and you can't overload functions like you can in Java or
other typed languages)
As usual, I created a poll here
Re: [PHP] Will PHP ever grow up and have threading?
On Mon, Mar 22, 2010 at 10:01 PM, Larry Garfield la...@garfieldtech.com wrote: On Monday 22 March 2010 10:51:14 pm Tommy Pham wrote: Threading is one of the 2 two main reasons why I moved to Java asp.net (C#). I've built a PHP based web crawler about 10 years ago. I ran into some problems: cookies, form handling and submission, threading, and application variables. I later found some solutions for cookies, form handling submission. But no solution for threading and application variables. Thus the move. Here's a simple example of one of the many uses for threading. For an e-commerce site, when the shopper requests for a category (ID), you can have a thread to get all subcategories for that category, another thread to get any assigned products, another thread to fetch all manufacturers listed under that category, another thread to fetch any filters (price ranges, features, specs, etc) set by the store owner that would fall under that category, etc... versus what PHP currently doing now: fetch subcategories, then fetch assigned products, then fetch manufacturers, etc Performance would increase ten fold because of parallel (threading) operations versus serial operations. Add that to application variable (less memory usage and CPU cycles due to creating/GC of variables that could be used for an entire application regardless of requests sessions), you have an excellent tool. Regards, Tommy Threading is also much more difficult to program for safely, because thread order is non-deterministic. Do you really want to unleash hoards of marginally competent programmers on a threaded enviornment? :-) Marginally competent? I think some, if not many, on this list will disagree with that ;) Also, the architecture you describe above is fine if you're scaling a single server really big. PHP is designed to scale the other direction: Just add more servers. There's no data shared from one request to another, so there's no need to share data between web heads. Throw a load balancer in front of it and spin up as many web servers as you need. Load balancer is used when the server is overloaded with requests and upgrade has reached it's limit. That's not the same thing as a simple request where multiple answers are needed as in my example. If you're thinking of implementing something like my example across multiple servers (where each server will fetch an answer for a simple request) via another method, then you're going to face similar issues as threading ie session/request sync which is equivalent to thread safety/sync/deadlock but now it's worse because it's spread across network where performance issues comes in because internal system IO (network IO + internal system IO). The shared nothing design is very deliberate. It has design trade-offs like anything else. PHP is a web-centric language. It's not really intended for building tier-1 daemon processes, just like you'd be an idiot to try and code your entire web app in C from the start. Of course since C was engineered to create OSes and (text based) apps when SMP/MC is unheard of. But we're now in the digital era where SMP/MC is very common place. In fact, trying to buy a new desktop/laptop now without a multicore becomes very difficult and undesired. Why not make use of the SMP/MC? :) PHP seems strive and somewhat 'imitate' languages like java asp.net. Not trying to go off topice but for example: namespace (namespace in asp.net and packages in java). For many of us that don't use namespace now or even when it's not yet implemented, we (PHP web app dev) already implement our own version of it - subfolders. So why not copy or imitate the features that would be more beneficial if not more usability ie threading? PHP is already ahead of java asp.net in terms of generics, not strong typed. Regards, Tommy --Larry Garfield -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Will PHP ever grow up and have threading?
Here's another analogy. For those of us in the field long enough, we see the power of AJAX and we use it in one form or another. For the newbies, they have yet to see it's power nor the requirements to implement it. Threading is similar to that. It's not for everybody. But for those of us that are ready and have need for it, we can implement it IF IT'S THERE, which is the point of OP, although the way he put it isn't exactly welcoming... perhaps he had a very long week and it's just starting too. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Will PHP ever grow up and have threading?
Daevid Vincent wrote: I've been using PHP for a decade or so (since PHP/FI) and love it. The one problem that seems to always keep coming back on enterprise level projects is the lack of threading. This always means we have to write some back-end code in Ruby or Java or C/C++ and some hacky database layer or DBUS or something to communicate with PHP. Use the right tool for the right job - PHP is a scripting/interpreted language, it does not need threading (IMO of course). -- Per Jessen, Zürich (9.4°C) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Filtering all output to STDERR
Have you tried with http://dk2.php.net/manual/en/function.error-reporting.php or just the @ operator? Yes. But this does not work, because error levels and the @ operator only relate to errors thrown by the PHP runtime and have nothing to do with STDERR. But I need a way to close the STDERR file handle at the beginning of a script or at least catch and remove all output sent to STDERR. Regards Marten -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] constants STDOUT, STDERR, STDIN not working in 5.2.x?
Hello, I found different code examples like this, which use the file handle STDERR just like this: ?php fwrite(STDERR, hello\n); ? Also, the PHP documentation of input/output streams (http://php.net/manual/de/wrappers.php.php) says: It is recommended that you simply use the constants STDIN, STDOUT and STDERR instead of manually opening streams using these wrappers. I don't want to use the php://stderr wrapper, because this just creates a duplicate of the original STDERR handler and if I'm closing php://stderr, the original STDERR still would exist. When I'm using this code, I only get: bNotice/b: Use of undefined constant STDERR - assumed 'STDERR' in b/test.php/b on line b4/bbr / br / bWarning/b: fwrite(): supplied argument is not a valid stream resource in b/test.php/b on line b4/bbr / How can I access the original STDERR handle? The constant should be there, but does not exist. regards Marten -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Will PHP ever grow up and have threading?
hmm i use scripted languages because i prefer and they allow/force simple-to-read-code. but that does not mean a scripted language can't evolve to expose complicated code constructs like multi-threading and daemon-building in a simple manner too. i'd prefer it if a language like PHP can be used for other things besides webserving too. i also think at least some web-apps could benefit from multi-threading and daemon-building.. particularly web-apps that deal with real-time dataflows. and btw, the distinction between compiled and scripted is not a hard one anymore eh.. not with zend and that facebook php-compiler out there. On Tue, Mar 23, 2010 at 10:04 AM, Per Jessen p...@computer.org wrote: Daevid Vincent wrote: I've been using PHP for a decade or so (since PHP/FI) and love it. The one problem that seems to always keep coming back on enterprise level projects is the lack of threading. This always means we have to write some back-end code in Ruby or Java or C/C++ and some hacky database layer or DBUS or something to communicate with PHP. Use the right tool for the right job - PHP is a scripting/interpreted language, it does not need threading (IMO of course). -- Per Jessen, Zürich (9.4°C) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] constants STDOUT, STDERR, STDIN not working in 5.2.x?
2010/3/23 Marten Lehmann lehm...@cnm.de
Hello,
I found different code examples like this, which use the file handle STDERR
just like this:
?php
fwrite(STDERR, hello\n);
?
Also, the PHP documentation of input/output streams (
http://php.net/manual/de/wrappers.php.php) says:
It is recommended that you simply use the constants STDIN, STDOUT and
STDERR instead of manually opening streams using these wrappers.
I don't want to use the php://stderr wrapper, because this just creates a
duplicate of the original STDERR handler and if I'm closing php://stderr,
the original STDERR still would exist.
When I'm using this code, I only get:
bNotice/b: Use of undefined constant STDERR - assumed 'STDERR' in
b/test.php/b on line b4/bbr /
br /
bWarning/b: fwrite(): supplied argument is not a valid stream resource
in b/test.php/b on line b4/bbr /
How can I access the original STDERR handle? The constant should be there,
but does not exist.
regards
Marten
Hi,
I can reproduce it with some differences. Check this out:
$ php --version
PHP 5.2.10-2ubuntu6.4 with Suhosin-Patch 0.9.7 (cli) (built: Jan 6 2010
22:56:44)
Copyright (c) 1997-2009 The PHP Group
Zend Engine v2.2.0, Copyright (c) 1998-2009 Zend Technologies
$ php 1/dev/null # note that the PHP error messages are
displayed on STDOUT - I don't show them with 1/dev/null
?
$x = fopen('php://stderr', 'r'); fwrite($x, test\n); fclose($x);
$x = fopen(STDERR, 'r'); fwrite($x, test2\n); fclose($x); ?
?
fwrite(STDERR, test3\n);
fwrite ('php://stderr', test4);
?
---
Result:
test
So my assumption is, that the quoted recommendation is outdated / wrong.
Regards
PS: PHP reports this when giving the constant STDERR:
Warning: fopen(STDERR): failed to open stream: No such file or directory
Warning: fwrite(): supplied argument is not a valid stream resource
Re: [PHP] Filtering all output to STDERR
Ahh, I see why my suggestions had no effect - I assumed you were dealing with normal php errors, not something done customly by the code. I'm afraid the only option I see is that of debugging the problem script to find out where it opens STDERR - if you're certain that the script specifically outputs messages to STDERR, then it's opening that stream somewhere before the output. Regards Peter On 23 March 2010 11:28, Marten Lehmann lehm...@cnm.de wrote: Have you tried with http://dk2.php.net/manual/en/function.error-reporting.php or just the @ operator? Yes. But this does not work, because error levels and the @ operator only relate to errors thrown by the PHP runtime and have nothing to do with STDERR. But I need a way to close the STDERR file handle at the beginning of a script or at least catch and remove all output sent to STDERR. Regards Marten -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- hype WWW: http://plphp.dk / http://plind.dk LinkedIn: http://www.linkedin.com/in/plind Flickr: http://www.flickr.com/photos/fake51 BeWelcome: Fake51 Couchsurfing: Fake51 /hype -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Will PHP ever grow up and have threading?
You could implement the features yourself. Damn, Mr McGlone beat me to it :) That's such a STUPID retort I'm so sick of hearing from the FOSS community. build it yourself uh huhh uhhh huhhh. Obviously I'm not a low-level C/C++ coder -- that's WHY I use PHP. :-\ So, you just stay content with the status quo. I will continue to ask for features to enhance the language. They may fall on deaf ears, but sometimes... just sometimes... The squeaky wheel get's the grease. I didn't intend for my reply to sound nasty. After reading your OP, I see that you are a very experienced programmer and I meant for it as a suggestion. -- Blessings David M. I have been driven to my knees many times by the overwhelming conviction that I had nowhere else to go. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] PHP to access shell script to print barcodes
On 23 March 2010 05:48, Jochem Maas joc...@iamjochem.com wrote:
Op 3/23/10 3:27 AM, Rob Gould schreef:
I am trying to replicate the functionality that I see on this site:
http://blog.maniac.nl/webbased-pdf-lto-barcode-generator/
Notice after you hit SUBMIT QUERY, you get a PDF file with a page of
barcodes. That's _exactly_ what I'm after.
Fortunately, the author gives step-by-step instructions on how to do this on
this page:
http://blog.maniac.nl/2008/05/28/creating-lto-barcodes/
So I've gotten through all the steps, and have created the
barcode_with_samples.ps file, and have it hosted here:
http://www.winecarepro.com/kiosk/fast/shell/
Notice how the last few lines contain the shell-script that renders the
postscript:
#!/bin/bash
BASE=”100″;
NR=$BASE
for hor in 30 220 410
do
ver=740
while [ $ver -ge 40 ];
do
printf -v FNR “(%06dL3)” $NR
echo “$hor $ver moveto $FNR (includetext height=0.55) code39 barcode”
let ver=$ver-70
let NR=NR+1
done
done
I need to somehow create a PHP script that executes this shell script.
And after doing some research, it sounds like
I need to use the PHP exec command, so I do that with the following file:
http://www.winecarepro.com/kiosk/fast/shell/printbarcodes.php
Which has the following script:
?php
$command=http://www.winecarepro.com/kiosk/fast/shell/barcode_with_sample.ps;;
exec($command, $arr);
echo $arr;
?
And, as you can see, nothing works. I guess firstly, I'd like to know:
A) Is this PHP exec call really the way to go with executing this shell
script? Is there a better way? It seems to me like it's not really
executing.
that's what exec() is for. $command need to contain a *local* path to the
command in question, currently your
trying to pass a url to bash ... which obviously doesn't do much.
the shell script in question needs to have the executable bit set in order to
run (either that or change to command to
run bash with your script as an argument)
I'd also suggest putting the shell script outside of your webroot, or at
least in a directory that's not accessable
from the web.
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
I think this is a translation of the script to PHP.
?php
$BASE = 100;
$NR = $BASE;
foreach(array(30, 220, 410) as $hor) {
$ver = 740;
while ($ver = 40) {
printf($hor $ver moveto (%06dL3) (includetext height=0.55)
code39
barcode\n, $NR);
$ver -= 70;
++$NR;
}
}
It produces output like ...
30 740 moveto (000100L3) (includetext height=0.55) code39 barcode
30 670 moveto (000101L3) (includetext height=0.55) code39 barcode
30 600 moveto (000102L3) (includetext height=0.55) code39 barcode
30 530 moveto (000103L3) (includetext height=0.55) code39 barcode
30 460 moveto (000104L3) (includetext height=0.55) code39 barcode
30 390 moveto (000105L3) (includetext height=0.55) code39 barcode
30 320 moveto (000106L3) (includetext height=0.55) code39 barcode
30 250 moveto (000107L3) (includetext height=0.55) code39 barcode
30 180 moveto (000108L3) (includetext height=0.55) code39 barcode
30 110 moveto (000109L3) (includetext height=0.55) code39 barcode
30 40 moveto (000110L3) (includetext height=0.55) code39 barcode
220 740 moveto (000111L3) (includetext height=0.55) code39 barcode
220 670 moveto (000112L3) (includetext height=0.55) code39 barcode
220 600 moveto (000113L3) (includetext height=0.55) code39 barcode
220 530 moveto (000114L3) (includetext height=0.55) code39 barcode
220 460 moveto (000115L3) (includetext height=0.55) code39 barcode
220 390 moveto (000116L3) (includetext height=0.55) code39 barcode
220 320 moveto (000117L3) (includetext height=0.55) code39 barcode
220 250 moveto (000118L3) (includetext height=0.55) code39 barcode
220 180 moveto (000119L3) (includetext height=0.55) code39 barcode
220 110 moveto (000120L3) (includetext height=0.55) code39 barcode
220 40 moveto (000121L3) (includetext height=0.55) code39 barcode
410 740 moveto (000122L3) (includetext height=0.55) code39 barcode
410 670 moveto (000123L3) (includetext height=0.55) code39 barcode
410 600 moveto (000124L3) (includetext height=0.55) code39 barcode
410 530 moveto (000125L3) (includetext height=0.55) code39 barcode
410 460 moveto (000126L3) (includetext height=0.55) code39 barcode
410 390 moveto (000127L3) (includetext height=0.55) code39 barcode
410 320 moveto (000128L3) (includetext height=0.55) code39 barcode
410 250 moveto (000129L3) (includetext height=0.55) code39 barcode
410 180 moveto (000130L3) (includetext height=0.55) code39 barcode
410 110 moveto (000131L3) (includetext height=0.55) code39 barcode
410 40 moveto (000132L3) (includetext height=0.55) code39 barcode
No idea if that is accurate or not. If you can run the script by hand
once to confirm, then
--
-
Richard Quadling
Standing on the shoulders of some very clever giants!
EE :
Re: [PHP] Will PHP ever grow up and have threading?
On 23 March 2010 00:02, Daevid Vincent dae...@daevid.com wrote: douche-bags I think this is about the best way to get the wrong attention. Not everyone has a sense of humour like yours. Maybe no one has a sense of humour like yours. Good luck. Richard. -- - Richard Quadling Standing on the shoulders of some very clever giants! EE : http://www.experts-exchange.com/M_248814.html EE4Free : http://www.experts-exchange.com/becomeAnExpert.jsp Zend Certified Engineer : http://zend.com/zce.php?c=ZEND002498r=213474731 ZOPA : http://uk.zopa.com/member/RQuadling -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] another question on setting include paths for a project
On Mon, 22 Mar 2010, Nilesh Govindarajan wrote: What I do is, set the include path in the top-level bootstrapper. /bootstrap.php: set_include_path(dirname(__FILE__) . '/lib' . PATH_SEPARATOR . get_include_path()); Then I load the autoloader from /lib/autoload.php at the time of bootstrap. /lib contains others /lib/Common, /lib/Util, etc. So when I say new Common_Form();, it will include /lib/Common/Form.php not bad, i'll look at that more closely. but let me mention a wrinkle i mentioned before and expand on it so folks can see what i'm trying to do and why i was suggesting the strategy i did. as i said, something i've used before (in admittedly non-PHP projects) was to require developers who checked out the code base to set a single env variable (say, PROJ_DIR) to point at the location of the checkout. while someone earlier suggested that was overkill, this approach had a major benefit for me. in both that earlier project and in this current PHP project, there was the possibility of multiple code base checkouts -- perhaps the current stable one and a newer development one. i'm a big fan of lots and lots of automated testing so i would write numerous scripts that would, from the command line, test the code base. i want those test scripts to work equally well on the production checkout and the development checkout, and i also don't want to be forced to locate those test scripts in any particular directory. i might want a totally separate checkout for test scripts, and the freedom to check them out wherever i want. quite simply, i want to be able to check out my test scripts, and tell them *which* code base to run against. and i see no way around that other than to have to explicitly identify the location of the code base to be tested, and that's what the PROJ_DIR variable was for. using that single variable, i could reset and point at whatever checkout i wanted to test. and i didn't see any easier way to do it. i've seen lots of suggestions of very clever ways to have the components of a single checkout know there the rest of the checkout is, and most of them would work fine. but it seems clear that none of those techniques would give me the ability to do what i want above -- to arbitrarily refer to checkouts from *elsewhere* and have everything still work. and there's one more thing. to speed up coding, i've added a utils directory to the code base, containing (you guessed it) handy-dandy little utilities. and since they're part of the repository, it's not hard for other parts of the checkout to include them. but, eventually, someone is going to start a second, sort-of-related project, and will want to reuse some of those utilities, and the obvious solution will be to move those utilities out of the first project and give them their own checkout (svn external?), and again, i don't want to lock any scripts into any particular location. the single environment variable idea still seems like the obvious solution, or maybe even more than one. because i don't see that there's any way to make this *completely* automated. at some point, if i want as much flexibility as possible, a developer who checks out one or more of these projects has to identify what directories he wants to work with, and all subsequent includes will work off of that. thoughts? sorry for rambling on so long. rday -- Robert P. J. Day Waterloo, Ontario, CANADA Linux Consulting, Training and Kernel Pedantry. Web page: http://crashcourse.ca Twitter: http://twitter.com/rpjday -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Will PHP ever grow up and have threading?
Rene Veerman wrote: But i've yet to find a way to keep global objects in memory between http requests, outside $_SESSION, which i believe is just stored to- and loaded from disk between http requests. You can store sessions in a cache and avoid the disk IO. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] constants STDOUT, STDERR, STDIN not working in 5.2.x?
On Tue, Mar 23, 2010 at 11:47, Marten Lehmann lehm...@cnm.de wrote: Hello, I found different code examples like this, which use the file handle STDERR just like this: ?php fwrite(STDERR, hello\n); ? Also, the PHP documentation of input/output streams (http://php.net/manual/de/wrappers.php.php) says: It is recommended that you simply use the constants STDIN, STDOUT and STDERR instead of manually opening streams using these wrappers. I don't want to use the php://stderr wrapper, because this just creates a duplicate of the original STDERR handler and if I'm closing php://stderr, the original STDERR still would exist. When I'm using this code, I only get: bNotice/b: Use of undefined constant STDERR - assumed 'STDERR' in b/test.php/b on line b4/bbr / br / bWarning/b: fwrite(): supplied argument is not a valid stream resource in b/test.php/b on line b4/bbr / How can I access the original STDERR handle? The constant should be there, but does not exist. regards Marten These I/O streams are only present in the CLI SAPI. -- Daniel Egeberg -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] constants STDOUT, STDERR, STDIN not working in 5.2.x?
2010/3/23 Daniel Egeberg degeb...@php.net On Tue, Mar 23, 2010 at 11:47, Marten Lehmann lehm...@cnm.de wrote: Hello, I found different code examples like this, which use the file handle STDERR just like this: ?php fwrite(STDERR, hello\n); ? Also, the PHP documentation of input/output streams (http://php.net/manual/de/wrappers.php.php) says: It is recommended that you simply use the constants STDIN, STDOUT and STDERR instead of manually opening streams using these wrappers. I don't want to use the php://stderr wrapper, because this just creates a duplicate of the original STDERR handler and if I'm closing php://stderr, the original STDERR still would exist. When I'm using this code, I only get: bNotice/b: Use of undefined constant STDERR - assumed 'STDERR' in b/test.php/b on line b4/bbr / br / bWarning/b: fwrite(): supplied argument is not a valid stream resource in b/test.php/b on line b4/bbr / How can I access the original STDERR handle? The constant should be there, but does not exist. regards Marten These I/O streams are only present in the CLI SAPI. -- Daniel Egeberg Please confirm that the code of my previous replay on this topic (executed via php-cli) does not print out test2 or test3. The constant is present but doesn't work as supposed. Regards
Re: [PHP] constants STDOUT, STDERR, STDIN not working in 5.2.x?
On Tue, Mar 23, 2010 at 15:50, Jan G.B. ro0ot.w...@googlemail.com wrote:
2010/3/23 Daniel Egeberg degeb...@php.net
On Tue, Mar 23, 2010 at 11:47, Marten Lehmann lehm...@cnm.de wrote:
Hello,
I found different code examples like this, which use the file handle
STDERR
just like this:
?php
fwrite(STDERR, hello\n);
?
Also, the PHP documentation of input/output streams
(http://php.net/manual/de/wrappers.php.php) says:
It is recommended that you simply use the constants STDIN, STDOUT and
STDERR instead of manually opening streams using these wrappers.
I don't want to use the php://stderr wrapper, because this just
creates a
duplicate of the original STDERR handler and if I'm closing
php://stderr,
the original STDERR still would exist.
When I'm using this code, I only get:
bNotice/b: Use of undefined constant STDERR - assumed 'STDERR' in
b/test.php/b on line b4/bbr /
br /
bWarning/b: fwrite(): supplied argument is not a valid stream
resource
in b/test.php/b on line b4/bbr /
How can I access the original STDERR handle? The constant should be
there,
but does not exist.
regards
Marten
These I/O streams are only present in the CLI SAPI.
--
Daniel Egeberg
Please confirm that the code of my previous replay on this topic (executed
via php-cli) does not print out test2 or test3. The constant is present
but doesn't work as supposed.
Regards
You are making a number of errors there:
1) You are trying to open php://stderr in read mode, but that stream
is write only (I'm not sure why it outputs regardless).
2) You are trying to open STDERR, but that constant holds a stream
resource while fopen() expects a string.
3) You are trying to write to 'php://stderr'. That's not possible. You
cannot pass a string as stream.
The following should work:
dan...@daniel-laptop:~$ cat test.php
?php
$stderr = fopen('php://stderr', 'w');
fwrite($stderr, 'Error 1' . PHP_EOL);
fwrite(STDERR, 'Error 2' . PHP_EOL);
echo 'Normal echo';
dan...@daniel-laptop:~$ php test.php /dev/null
Error 1
Error 2
dan...@daniel-laptop:~$ ./src/php-5.2.12/sapi/cli/php test.php /dev/null
Error 1
Error 2
--
Daniel Egeberg
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] another question on setting include paths for a project
On 23 March 2010 13:11, Robert P. J. Day rpj...@crashcourse.ca wrote: On Mon, 22 Mar 2010, Nilesh Govindarajan wrote: What I do is, set the include path in the top-level bootstrapper. /bootstrap.php: set_include_path(dirname(__FILE__) . '/lib' . PATH_SEPARATOR . get_include_path()); Then I load the autoloader from /lib/autoload.php at the time of bootstrap. /lib contains others /lib/Common, /lib/Util, etc. So when I say new Common_Form();, it will include /lib/Common/Form.php not bad, i'll look at that more closely. but let me mention a wrinkle i mentioned before and expand on it so folks can see what i'm trying to do and why i was suggesting the strategy i did. as i said, something i've used before (in admittedly non-PHP projects) was to require developers who checked out the code base to set a single env variable (say, PROJ_DIR) to point at the location of the checkout. while someone earlier suggested that was overkill, this approach had a major benefit for me. in both that earlier project and in this current PHP project, there was the possibility of multiple code base checkouts -- perhaps the current stable one and a newer development one. i'm a big fan of lots and lots of automated testing so i would write numerous scripts that would, from the command line, test the code base. i want those test scripts to work equally well on the production checkout and the development checkout, and i also don't want to be forced to locate those test scripts in any particular directory. i might want a totally separate checkout for test scripts, and the freedom to check them out wherever i want. quite simply, i want to be able to check out my test scripts, and tell them *which* code base to run against. and i see no way around that other than to have to explicitly identify the location of the code base to be tested, and that's what the PROJ_DIR variable was for. using that single variable, i could reset and point at whatever checkout i wanted to test. and i didn't see any easier way to do it. i've seen lots of suggestions of very clever ways to have the components of a single checkout know there the rest of the checkout is, and most of them would work fine. but it seems clear that none of those techniques would give me the ability to do what i want above -- to arbitrarily refer to checkouts from *elsewhere* and have everything still work. and there's one more thing. to speed up coding, i've added a utils directory to the code base, containing (you guessed it) handy-dandy little utilities. and since they're part of the repository, it's not hard for other parts of the checkout to include them. but, eventually, someone is going to start a second, sort-of-related project, and will want to reuse some of those utilities, and the obvious solution will be to move those utilities out of the first project and give them their own checkout (svn external?), and again, i don't want to lock any scripts into any particular location. the single environment variable idea still seems like the obvious solution, or maybe even more than one. because i don't see that there's any way to make this *completely* automated. at some point, if i want as much flexibility as possible, a developer who checks out one or more of these projects has to identify what directories he wants to work with, and all subsequent includes will work off of that. thoughts? sorry for rambling on so long. rday -- Robert P. J. Day Waterloo, Ontario, CANADA Linux Consulting, Training and Kernel Pedantry. Web page: http://crashcourse.ca Twitter: http://twitter.com/rpjday -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php However you want to identify the location, the autoloading techniques will allow you to only need to identify the location once. As compared to every file meticulously maintaining relative links to files. So, for testing, would this not work? RunTests C:\Dev\Checkouts\PROJ\trunk\tests RunTests C:\Installed\PROJ\V1.1\Tests RunTests C:\Installed\PROJ\V2.2\Tests RunTests C:\Installed\PROJ\V3.3\Tests sort of thing? And in RunTests, you set the location based upon the $argv[1] (using the autoloader technique). No env_var. No include_path. -- - Richard Quadling Standing on the shoulders of some very clever giants! EE : http://www.experts-exchange.com/M_248814.html EE4Free : http://www.experts-exchange.com/becomeAnExpert.jsp Zend Certified Engineer : http://zend.com/zce.php?c=ZEND002498r=213474731 ZOPA : http://uk.zopa.com/member/RQuadling -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit:
Re: [PHP] another question on setting include paths for a project
On Tue, 23 Mar 2010, Richard Quadling wrote: However you want to identify the location, the autoloading techniques will allow you to only need to identify the location once. As compared to every file meticulously maintaining relative links to files. So, for testing, would this not work? RunTests C:\Dev\Checkouts\PROJ\trunk\tests RunTests C:\Installed\PROJ\V1.1\Tests RunTests C:\Installed\PROJ\V2.2\Tests RunTests C:\Installed\PROJ\V3.3\Tests sort of thing? And in RunTests, you set the location based upon the $argv[1] (using the autoloader technique). No env_var. No include_path. sure, but deep down, you're still doing what i'm claiming has to be done at some point -- *explicitly* identifying the target location. you're just doing it in a different way, which is fine and might be what i'm after. rday -- Robert P. J. Day Waterloo, Ontario, CANADA Linux Consulting, Training and Kernel Pedantry. Web page: http://crashcourse.ca Twitter: http://twitter.com/rpjday -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] i'm curious about unit testing
Hi.. in an effort to write better code i'd like to know good strategies for unit testing. automated testing of code. the fact that my code can undergo rapid changes has kept me back so far. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] i'm curious about unit testing
On Tue, Mar 23, 2010 at 14:29, Rene Veerman rene7...@gmail.com wrote: Hi.. in an effort to write better code i'd like to know good strategies for unit testing. automated testing of code. the fact that my code can undergo rapid changes has kept me back so far. This is a question that comes up now and again on the list. I'd check the archives (via Google[1]) to get a good baseline, and then you'll be better-armed to ask more specific questions, since you'll have at least a general understanding. ^1: http://www.google.com/search?q=php-general+unit+testing -- /Daniel P. Brown daniel.br...@parasane.net || danbr...@php.net http://www.parasane.net/ || http://www.pilotpig.net/ Looking for hosting or dedicated servers? Ask me how we can fit your budget! -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] PHP to access shell script to print barcodes
I love the idea of using PHP to insert data into Postscript. I'm just not sure
how to make it happen.
The good news is that I've got barcodes drawing just the way I need them:
http://www.winecarepro.com/kiosk/fast/shell/barcodemerge.ps
The bad news is that's all hard-coded Postscript. I'd like to take your
suggestion and use PHP to loop-through and draw the barcodes - - - however, if
I put anything that resembles PHP in my .ps file, bad things happen.
Anyone know the secret to creating a postscript .ps file that had PHP code
injecting data into it?
Here's the source file that works. Where PHP would be handy is at the very
bottom of the script
http://www.winecarepro.com/kiosk/fast/shell/barcodemerge.ps.zip
On Mar 23, 2010, at 7:48 AM, Richard Quadling wrote:
On 23 March 2010 05:48, Jochem Maas joc...@iamjochem.com wrote:
Op 3/23/10 3:27 AM, Rob Gould schreef:
I am trying to replicate the functionality that I see on this site:
http://blog.maniac.nl/webbased-pdf-lto-barcode-generator/
Notice after you hit SUBMIT QUERY, you get a PDF file with a page of
barcodes. That's _exactly_ what I'm after.
Fortunately, the author gives step-by-step instructions on how to do this
on this page:
http://blog.maniac.nl/2008/05/28/creating-lto-barcodes/
So I've gotten through all the steps, and have created the
barcode_with_samples.ps file, and have it hosted here:
http://www.winecarepro.com/kiosk/fast/shell/
Notice how the last few lines contain the shell-script that renders the
postscript:
#!/bin/bash
BASE=”100″;
NR=$BASE
for hor in 30 220 410
do
ver=740
while [ $ver -ge 40 ];
do
printf -v FNR “(%06dL3)” $NR
echo “$hor $ver moveto $FNR (includetext height=0.55) code39 barcode”
let ver=$ver-70
let NR=NR+1
done
done
I need to somehow create a PHP script that executes this shell script.
And after doing some research, it sounds like
I need to use the PHP exec command, so I do that with the following file:
http://www.winecarepro.com/kiosk/fast/shell/printbarcodes.php
Which has the following script:
?php
$command=http://www.winecarepro.com/kiosk/fast/shell/barcode_with_sample.ps;;
exec($command, $arr);
echo $arr;
?
And, as you can see, nothing works. I guess firstly, I'd like to know:
A) Is this PHP exec call really the way to go with executing this shell
script? Is there a better way? It seems to me like it's not really
executing.
that's what exec() is for. $command need to contain a *local* path to the
command in question, currently your
trying to pass a url to bash ... which obviously doesn't do much.
the shell script in question needs to have the executable bit set in order
to run (either that or change to command to
run bash with your script as an argument)
I'd also suggest putting the shell script outside of your webroot, or at
least in a directory that's not accessable
from the web.
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
I think this is a translation of the script to PHP.
?php
$BASE = 100;
$NR = $BASE;
foreach(array(30, 220, 410) as $hor) {
$ver = 740;
while ($ver = 40) {
printf($hor $ver moveto (%06dL3) (includetext height=0.55)
code39
barcode\n, $NR);
$ver -= 70;
++$NR;
}
}
It produces output like ...
30 740 moveto (000100L3) (includetext height=0.55) code39 barcode
30 670 moveto (000101L3) (includetext height=0.55) code39 barcode
30 600 moveto (000102L3) (includetext height=0.55) code39 barcode
30 530 moveto (000103L3) (includetext height=0.55) code39 barcode
30 460 moveto (000104L3) (includetext height=0.55) code39 barcode
30 390 moveto (000105L3) (includetext height=0.55) code39 barcode
30 320 moveto (000106L3) (includetext height=0.55) code39 barcode
30 250 moveto (000107L3) (includetext height=0.55) code39 barcode
30 180 moveto (000108L3) (includetext height=0.55) code39 barcode
30 110 moveto (000109L3) (includetext height=0.55) code39 barcode
30 40 moveto (000110L3) (includetext height=0.55) code39 barcode
220 740 moveto (000111L3) (includetext height=0.55) code39 barcode
220 670 moveto (000112L3) (includetext height=0.55) code39 barcode
220 600 moveto (000113L3) (includetext height=0.55) code39 barcode
220 530 moveto (000114L3) (includetext height=0.55) code39 barcode
220 460 moveto (000115L3) (includetext height=0.55) code39 barcode
220 390 moveto (000116L3) (includetext height=0.55) code39 barcode
220 320 moveto (000117L3) (includetext height=0.55) code39 barcode
220 250 moveto (000118L3) (includetext height=0.55) code39 barcode
220 180 moveto (000119L3) (includetext height=0.55) code39 barcode
220 110 moveto (000120L3) (includetext height=0.55) code39 barcode
220 40 moveto (000121L3) (includetext height=0.55) code39 barcode
410 740 moveto (000122L3) (includetext height=0.55) code39 barcode
410
Re: [PHP] PHP to access shell script to print barcodes
You can create a .php script that sets a proper header to make the
browser download the file rather than display it. That also allows you
to set the filename for the download. What you'd need to do is include
something like:
header(Content-Disposition: attachment; filename: 'barcodemerge.ps');
That tells the browser to download the file. You can also try setting
the content-type
header('Content-type: application/postscript');
Either of the above might do the trick for you.
Regards
Peter
On 23 March 2010 22:10, Rob Gould gould...@me.com wrote:
I love the idea of using PHP to insert data into Postscript. I'm just not
sure how to make it happen.
The good news is that I've got barcodes drawing just the way I need them:
http://www.winecarepro.com/kiosk/fast/shell/barcodemerge.ps
The bad news is that's all hard-coded Postscript. I'd like to take your
suggestion and use PHP to loop-through and draw the barcodes - - - however,
if I put anything that resembles PHP in my .ps file, bad things happen.
Anyone know the secret to creating a postscript .ps file that had PHP code
injecting data into it?
Here's the source file that works. Where PHP would be handy is at the very
bottom of the script
http://www.winecarepro.com/kiosk/fast/shell/barcodemerge.ps.zip
On Mar 23, 2010, at 7:48 AM, Richard Quadling wrote:
On 23 March 2010 05:48, Jochem Maas joc...@iamjochem.com wrote:
Op 3/23/10 3:27 AM, Rob Gould schreef:
I am trying to replicate the functionality that I see on this site:
http://blog.maniac.nl/webbased-pdf-lto-barcode-generator/
Notice after you hit SUBMIT QUERY, you get a PDF file with a page of
barcodes. That's _exactly_ what I'm after.
Fortunately, the author gives step-by-step instructions on how to do this
on this page:
http://blog.maniac.nl/2008/05/28/creating-lto-barcodes/
So I've gotten through all the steps, and have created the
barcode_with_samples.ps file, and have it hosted here:
http://www.winecarepro.com/kiosk/fast/shell/
Notice how the last few lines contain the shell-script that renders the
postscript:
#!/bin/bash
BASE=”100″;
NR=$BASE
for hor in 30 220 410
do
ver=740
while [ $ver -ge 40 ];
do
printf -v FNR “(%06dL3)” $NR
echo “$hor $ver moveto $FNR (includetext height=0.55) code39 barcode”
let ver=$ver-70
let NR=NR+1
done
done
I need to somehow create a PHP script that executes this shell script.
And after doing some research, it sounds like
I need to use the PHP exec command, so I do that with the following file:
http://www.winecarepro.com/kiosk/fast/shell/printbarcodes.php
Which has the following script:
?php
$command=http://www.winecarepro.com/kiosk/fast/shell/barcode_with_sample.ps;;
exec($command, $arr);
echo $arr;
?
And, as you can see, nothing works. I guess firstly, I'd like to know:
A) Is this PHP exec call really the way to go with executing this shell
script? Is there a better way? It seems to me like it's not really
executing.
that's what exec() is for. $command need to contain a *local* path to the
command in question, currently your
trying to pass a url to bash ... which obviously doesn't do much.
the shell script in question needs to have the executable bit set in order
to run (either that or change to command to
run bash with your script as an argument)
I'd also suggest putting the shell script outside of your webroot, or at
least in a directory that's not accessable
from the web.
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
I think this is a translation of the script to PHP.
?php
$BASE = 100;
$NR = $BASE;
foreach(array(30, 220, 410) as $hor) {
$ver = 740;
while ($ver = 40) {
printf($hor $ver moveto (%06dL3) (includetext height=0.55)
code39
barcode\n, $NR);
$ver -= 70;
++$NR;
}
}
It produces output like ...
30 740 moveto (000100L3) (includetext height=0.55) code39 barcode
30 670 moveto (000101L3) (includetext height=0.55) code39 barcode
30 600 moveto (000102L3) (includetext height=0.55) code39 barcode
30 530 moveto (000103L3) (includetext height=0.55) code39 barcode
30 460 moveto (000104L3) (includetext height=0.55) code39 barcode
30 390 moveto (000105L3) (includetext height=0.55) code39 barcode
30 320 moveto (000106L3) (includetext height=0.55) code39 barcode
30 250 moveto (000107L3) (includetext height=0.55) code39 barcode
30 180 moveto (000108L3) (includetext height=0.55) code39 barcode
30 110 moveto (000109L3) (includetext height=0.55) code39 barcode
30 40 moveto (000110L3) (includetext height=0.55) code39 barcode
220 740 moveto (000111L3) (includetext height=0.55) code39 barcode
220 670 moveto (000112L3) (includetext height=0.55) code39 barcode
220 600 moveto (000113L3) (includetext height=0.55) code39 barcode
220 530 moveto (000114L3) (includetext height=0.55) code39 barcode
220 460
Re: [PHP] Will PHP ever grow up and have threading?
On Tue, Mar 23, 2010 at 2:04 AM, Per Jessen p...@computer.org wrote: Use the right tool for the right job - PHP is a scripting/interpreted language, it does not need threading (IMO of course). -- Per Jessen, Zürich (9.4°C) I couldn't agree more. But here's a real life example. Your client has a forum and is using phpbb for their in house use. They also have an in house custom PHP app, integrated with phpbb, built to suit their needs. Now they want to implement some kind of CMS. You come in and implemented a PHP based CMS to integrate into their existing applications. Then you realize something troublesome, you have a performance issue where it could be resolved by implementing thread. What are you going to do? Are you going to say to the client We seem to have a problem. I suggest we migrate to Java or ASP.Net because threading will resolve the performance issue. Or are you going to spend who knows how long to try find a hack to resolve the issue? What do you think the client's response is when their need for the solution requires a short time frame of, if not immediate, implementation? Regards, Tommy -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Will PHP ever grow up and have threading?
Tommy Pham wrote: On Tue, Mar 23, 2010 at 2:04 AM, Per Jessen p...@computer.org wrote: Use the right tool for the right job - PHP is a scripting/interpreted language, it does not need threading (IMO of course). -- Per Jessen, Zürich (9.4°C) I couldn't agree more. But here's a real life example. Your client has a forum and is using phpbb for their in house use. They also have an in house custom PHP app, integrated with phpbb, built to suit their needs. Now they want to implement some kind of CMS. You come in and implemented a PHP based CMS to integrate into their existing applications. Then you realize something troublesome, you have a performance issue where it could be resolved by implementing thread. What are you going to do? The standard, mature, experienced answer is - buy a bigger box. [snip] What do you think the client's response is when their need for the solution requires a short time frame of, if not immediate, implementation? There are no immediate solutions to immediate performance problems. If you have a poor design that restricts your throughput, you can 1) throw hardware at it or 2) change the design. At some point you'll hit yet another limit with 1), and you are forced back to 2). Somewhere along the line the original designer has presumably left or been made to. /Per -- Per Jessen, Zürich (7.5°C) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Will PHP ever grow up and have threading?
On Tue, Mar 23, 2010 at 3:33 PM, Per Jessen p...@computer.org wrote: Tommy Pham wrote: On Tue, Mar 23, 2010 at 2:04 AM, Per Jessen p...@computer.org wrote: Use the right tool for the right job - PHP is a scripting/interpreted language, it does not need threading (IMO of course). -- Per Jessen, Zürich (9.4°C) I couldn't agree more. But here's a real life example. Your client has a forum and is using phpbb for their in house use. They also have an in house custom PHP app, integrated with phpbb, built to suit their needs. Now they want to implement some kind of CMS. You come in and implemented a PHP based CMS to integrate into their existing applications. Then you realize something troublesome, you have a performance issue where it could be resolved by implementing thread. What are you going to do? The standard, mature, experienced answer is - buy a bigger box. The company started small. As their business grows because they have products services that do not exist in the marketplace, their hardware are already growing along side with it, (load balancers, clusters). So then your solution is buy bigger/more boxes? What if the their server room is filled and already using recent hardware. Their current business needs doesn't need to move to a bigger building. What then? Hire data center's services? What if they want to protect their proprietary break through products and services? What about unnecessary additional total cost of ownership (licenses, power consumption, etc...) for more/bigger boxes, even if they have available space, that could be avoided by just implementing threads? [snip] What do you think the client's response is when their need for the solution requires a short time frame of, if not immediate, implementation? There are no immediate solutions to immediate performance problems. If you have a poor design that restricts your throughput, you can 1) throw hardware at it or 2) change the design. At some point you'll hit yet another limit with 1), and you are forced back to 2). Somewhere along the line the original designer has presumably left or been made to. /Per -- Per Jessen, Zürich (7.5°C) If throwing hardware at it won't work because of the above mentioned, then you would change the design right? How long would that take? What if PHP has threads, how long would it take you implement threads with minor changes versus and overhaul of application design, coding, QA, etc... In summary, you're saying that PHP can not grow/evolve with business right? If the company started small and want to use available open source solutions, then grow quickly because of their unique and quality products and services, and become enterprise level with-in a few years, what then? Slow down business growth just so that IT can migrate everything to another language? Of all the enterprise applications I've seen, they used threads. Regards, Tommy -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Will PHP ever grow up and have threading?
On 3/23/10 6:04 PM, Tommy Pham wrote: If throwing hardware at it won't work because of the above mentioned, then you would change the design right? How long would that take? What if PHP has threads, how long would it take you implement threads with minor changes versus and overhaul of application design, coding, QA, etc... In summary, you're saying that PHP can not grow/evolve with business right? If the company started small and want to use available open source solutions, then grow quickly because of their unique and quality products and services, and become enterprise level with-in a few years, what then? Slow down business growth just so that IT can migrate everything to another language? Of all the enterprise applications I've seen, they used threads. Regards, Tommy The word enterprise is meaningless in this context because it provides no context for the distinction. What does enterprise mean? Gets Captain Kirk to his next date? Is OpenOffice.org's plugin download site enterprise? Is Sony BMG enterprise? The sites for the cities of London and Athens? Whitehouse.gov? That's just a couple of sites now running on Drupal, a particular single-threaded PHP application. That's not counting the thousands of similar organizations running PHP (not even PHP-wrapping-custom-C like Yahoo) applications of various and sundry kinds. (Wikipedia anyone?) PHP *is* in the enterprise and quite happy there. Not ready for the enterprise is a totally meaningless statement. Similarly, if you cannot think of any way to scale an application that doesn't involve threads then I question your competence as a programmer. Sure, threads can be one way to speed things up. There are lots and lots of others that may be more or less appropriate depending on the circumstances. Threads have their own scaling issues, namely they have to live within the same process on the same box. That means when you hit the maximum size of your server, you're done. That doesn't mean threads are bad, but they have their trade-offs just like everything else does. But let's consider what adding threads to PHP would take. That would mean making PHP a shared-memory architecture, so that different requests now operated in the same memory space. That means RAM-based persistence. That means needing to write thread-safe PHP libraries. (Not the ones in C; I mean the millions of lines of code of PHP already out there.) In short, adding threading support to PHP means PHP is no longer PHP. It's Java with dollarsigns. It's a complete and total rewrite of the entire language runtime and environment, and all of the code build atop it. The idea that you could just add threads to PHP and make it enterprise-ready is so naive it's mind boggling. --Larry Garfield -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Will PHP ever grow up and have threading?
2010/3/24 Tommy Pham tommy...@gmail.com: On Tue, Mar 23, 2010 at 3:33 PM, Per Jessen p...@computer.org wrote: Tommy Pham wrote: On Tue, Mar 23, 2010 at 2:04 AM, Per Jessen p...@computer.org wrote: Use the right tool for the right job - PHP is a scripting/interpreted language, it does not need threading (IMO of course). -- Per Jessen, Zürich (9.4°C) I couldn't agree more. But here's a real life example. Your client has a forum and is using phpbb for their in house use. They also have an in house custom PHP app, integrated with phpbb, built to suit their needs. Now they want to implement some kind of CMS. You come in and implemented a PHP based CMS to integrate into their existing applications. Then you realize something troublesome, you have a performance issue where it could be resolved by implementing thread. What are you going to do? The standard, mature, experienced answer is - buy a bigger box. The company started small. As their business grows because they have products services that do not exist in the marketplace, their hardware are already growing along side with it, (load balancers, clusters). So then your solution is buy bigger/more boxes? What if the their server room is filled and already using recent hardware. Their current business needs doesn't need to move to a bigger building. What then? Hire data center's services? What if they want to protect their proprietary break through products and services? What about unnecessary additional total cost of ownership (licenses, power consumption, etc...) for more/bigger boxes, even if they have available space, that could be avoided by just implementing threads? That screams poor code design. Then to solve the problem might not be threading or change of language but a reanalyze of the code and the design, probably a re-write. [snip] What do you think the client's response is when their need for the solution requires a short time frame of, if not immediate, implementation? There are no immediate solutions to immediate performance problems. If you have a poor design that restricts your throughput, you can 1) throw hardware at it or 2) change the design. At some point you'll hit yet another limit with 1), and you are forced back to 2). Somewhere along the line the original designer has presumably left or been made to. /Per -- Per Jessen, Zürich (7.5°C) If throwing hardware at it won't work because of the above mentioned, then you would change the design right? How long would that take? What if PHP has threads, how long would it take you implement threads with minor changes versus and overhaul of application design, coding, QA, etc... In summary, you're saying that PHP can not grow/evolve with business right? If the company started small and want to use available open source solutions, then grow quickly because of their unique and quality products and services, and become enterprise level with-in a few years, what then? Slow down business growth just so that IT can migrate everything to another language? Of all the enterprise applications I've seen, they used threads. Same answer as above. Regards, Tommy -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- MvH / Hans Åhlin Tel: +46761488019 http//www.kronan-net.com/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Will PHP ever grow up and have threading?
Tommy Pham wrote: On Tue, Mar 23, 2010 at 3:33 PM, Per Jessen p...@computer.org wrote: Tommy Pham wrote: On Tue, Mar 23, 2010 at 2:04 AM, Per Jessen p...@computer.org wrote: Use the right tool for the right job - PHP is a scripting/interpreted language, it does not need threading (IMO of course). -- Per Jessen, Zürich (9.4°C) I couldn't agree more. But here's a real life example. Your client has a forum and is using phpbb for their in house use. They also have an in house custom PHP app, integrated with phpbb, built to suit their needs. Now they want to implement some kind of CMS. You come in and implemented a PHP based CMS to integrate into their existing applications. Then you realize something troublesome, you have a performance issue where it could be resolved by implementing thread. What are you going to do? The standard, mature, experienced answer is - buy a bigger box. The company started small. As their business grows because they have products services that do not exist in the marketplace, their hardware are already growing along side with it, (load balancers, clusters). So then your solution is buy bigger/more boxes? What if the their server room is filled and already using recent hardware. Their current business needs doesn't need to move to a bigger building. What then? Hire data center's services? Very few companies have a legitimate reason to run their own server room at this point in time and should be using a data center if they are not already. Data centers have excellent bandwidth, diesel generators to keep things live during sustained power outages, temperature control to keep things cool, and often have technicians on hand with spare parts that can take care of many hardware issues 24/7. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Fwd: FACEBOOK MALWARE BOTNET
*Importance:* High All: If you are a Facebook user, you may have recently received an email with the subject: *Facebook Password Reset Confirmation Customer Support. **The *address of the sender is spoofed to display supp...@facebook.com *THIS IS MALWARE BOTNET – DO NOT OPEN THIS MESSAGE!* The message reads, “*Dear user of Facebook, Because of the measures taken to provide safety to our clients, your password has been changed. You can find your new password in attached document. Thanks, Your Facebook.*” *According to TrendMicro, “The malware being delivered is a botnet and is called ‘BredoLab.’ It has been occasionally spread by spam since May of 2009,**” **There have been at least eight versions of the Facebook BredoLab malware observed since March 16, 2010**. * *“**What is troubling is the newer versions of the BredoLab used in this latest attack campaign are not being detected by the majority of anti-virus services — and that means the majority of users who unwittingly click on the bogus attachments linked to fake e-mails are going to have their computers infected**“. *To bypass firewalls, it injects its own code into legitimate processes.** The malicious executable is linked to the Bredolab botnet, which has been linked to massive spam runs and identity-theft related attacks. BREDOLAB is a software that enables cybercriminal organizations to deliver any kind of software to its victims. Once a user’s machine is infected by BREDOLAB, it will receive regular malware updates the same way it receives software updates from the user’s security vendor. To clean and protect your home machine, both anti-virus and anti-malware/anti-spyware software should be run daily (or nightly).
Re: [PHP] Will PHP ever grow up and have threading?
Let's go back to my 1st e-commerce example. The manufacturers list is about 3,700. The categories is about about 2,400. The products list is right now at 500,000 and expected to be around 750,000. The site is only in English. The store owner wants to expand and be I18n: Chinese, French, German, Korean, Spanish. You see how big and complex that database gets? The store owners want to have this happens when a customer clicks on a category: * show all subcategories for that category, if any * show all products for that category, if any, * show all manufacturers, used as filtering, for that category and subcategories * show price range filter for that category * show features specifications filter for that category * show 10 top sellers for that category and related subcategories * the shopper can then select/deselect any of those filters and ability to sort by manufacturers, prices, user rating, popularity (purchased quantity) * have the ability to switch to another language translation on the fly * from the moment the shopper click on a link, the response time (when web browser saids Done in the status bar) is 5 seconds or less. Preferably 2-3 seconds. Will be using stopwatch for the timer. Now show me a website that meets those requirements and uses PHP, I'll be glad to support your argument about PHP w/o threads :) BTW, this is not even enterprise requirement. I may have another possible project where # products is over 10 million easily. With similar requirements when the user click on category. Do you think this site, which currently isn't, can run on PHP? Regards, Tommy -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Will PHP ever grow up and have threading?
On Tue, Mar 23, 2010 at 6:17 PM, Tommy Pham tommy...@gmail.com wrote: Let's go back to my 1st e-commerce example. The manufacturers list is about 3,700. The categories is about about 2,400. The products list is right now at 500,000 and expected to be around 750,000. The site is only in English. The store owner wants to expand and be I18n: Chinese, French, German, Korean, Spanish. You see how big and complex that database gets? The store owners want to have this happens when a customer clicks on a category: * show all subcategories for that category, if any * show all products for that category, if any, * show all manufacturers, used as filtering, for that category and subcategories * show price range filter for that category * show features specifications filter for that category * show 10 top sellers for that category and related subcategories forgot to mention: * show 10 random sale specials for that category and subcategories * the shopper can then select/deselect any of those filters and ability to sort by manufacturers, prices, user rating, popularity (purchased quantity) * have the ability to switch to another language translation on the fly * from the moment the shopper click on a link, the response time (when web browser saids Done in the status bar) is 5 seconds or less. Preferably 2-3 seconds. Will be using stopwatch for the timer. Now show me a website that meets those requirements and uses PHP, I'll be glad to support your argument about PHP w/o threads :) BTW, this is not even enterprise requirement. I may have another possible project where # products is over 10 million easily. With similar requirements when the user click on category. Do you think this site, which currently isn't, can run on PHP? Regards, Tommy -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Will PHP ever grow up and have threading?
Tommy Pham wrote: Let's go back to my 1st e-commerce example. The manufacturers list is about 3,700. The categories is about about 2,400. The products list is right now at 500,000 and expected to be around 750,000. The site is only in English. The store owner wants to expand and be I18n: Chinese, French, German, Korean, Spanish. You see how big and complex that database gets? The store owners want to have this happens when a customer clicks on a category: * show all subcategories for that category, if any * show all products for that category, if any, * show all manufacturers, used as filtering, for that category and subcategories * show price range filter for that category * show features specifications filter for that category * show 10 top sellers for that category and related subcategories * the shopper can then select/deselect any of those filters and ability to sort by manufacturers, prices, user rating, popularity (purchased quantity) * have the ability to switch to another language translation on the fly * from the moment the shopper click on a link, the response time (when web browser saids Done in the status bar) is 5 seconds or less. Preferably 2-3 seconds. Will be using stopwatch for the timer. Now show me a website that meets those requirements and uses PHP, I'll be glad to support your argument about PHP w/o threads :) BTW, this I don't currently know a site, sounds like a fun job though. is not even enterprise requirement. I may have another possible project where # products is over 10 million easily. With similar requirements when the user click on category. Do you think this site, which currently isn't, can run on PHP? Yes, I do. There's nothing in your requirements above that sound particularly difficult for PHP to handle with a good design and lots of caching... and of course the right hardware. I think you're hung up on the numbers a bit... those aren't very big numbers for a database. Cheers, Rob. -- http://www.interjinn.com Application and Templating Framework for PHP -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Will PHP ever grow up and have threading?
On Tue, Mar 23, 2010 at 06:17:56PM -0700, Tommy Pham wrote: Let's go back to my 1st e-commerce example. The manufacturers list is about 3,700. The categories is about about 2,400. The products list is right now at 500,000 and expected to be around 750,000. The site is only in English. The store owner wants to expand and be I18n: Chinese, French, German, Korean, Spanish. You see how big and complex that database gets? The store owners want to have this happens when a customer clicks on a category: * show all subcategories for that category, if any * show all products for that category, if any, * show all manufacturers, used as filtering, for that category and subcategories * show price range filter for that category * show features specifications filter for that category * show 10 top sellers for that category and related subcategories * the shopper can then select/deselect any of those filters and ability to sort by manufacturers, prices, user rating, popularity (purchased quantity) * have the ability to switch to another language translation on the fly * from the moment the shopper click on a link, the response time (when web browser saids Done in the status bar) is 5 seconds or less. Preferably 2-3 seconds. Will be using stopwatch for the timer. Now show me a website that meets those requirements and uses PHP, I'll be glad to support your argument about PHP w/o threads :) BTW, this is not even enterprise requirement. I may have another possible project where # products is over 10 million easily. With similar requirements when the user click on category. Do you think this site, which currently isn't, can run on PHP? That strikes me as a pretty stiff target, no matter how you look at it. You effectively want 6 major queries at once, plus response in under 3 seconds on a 75 row product table. I'm not sure I could produce that kind of performance in C at the command line. (I'm sure some smart guy on the list will say he can do it in 2 seconds flat over a 10 Base 2 network with teletypes and acoustic modems.) Which brings me to my question. Why do people expect console-level performance from a web browser? It's kind of rhetorical, since people want everything they can get and more all the time. But if performance came up as a customer question for me, I'd make it clear that they're not going to get console-level performance from a web browser, unless they want to spend a whole lot more money. Neither the world wide web nor browser software were ever designed primarily with speed in mind. The internet is not your local 64-bit 10 gigabyte memory loaded machine. Paul -- Paul M. Foster -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Will PHP ever grow up and have threading?
On Tue, Mar 23, 2010 at 6:57 PM, Paul M Foster pa...@quillandmouse.com wrote: On Tue, Mar 23, 2010 at 06:17:56PM -0700, Tommy Pham wrote: Let's go back to my 1st e-commerce example. The manufacturers list is about 3,700. The categories is about about 2,400. The products list is right now at 500,000 and expected to be around 750,000. The site is only in English. The store owner wants to expand and be I18n: Chinese, French, German, Korean, Spanish. You see how big and complex that database gets? The store owners want to have this happens when a customer clicks on a category: * show all subcategories for that category, if any * show all products for that category, if any, * show all manufacturers, used as filtering, for that category and subcategories * show price range filter for that category * show features specifications filter for that category * show 10 top sellers for that category and related subcategories * the shopper can then select/deselect any of those filters and ability to sort by manufacturers, prices, user rating, popularity (purchased quantity) * have the ability to switch to another language translation on the fly * from the moment the shopper click on a link, the response time (when web browser saids Done in the status bar) is 5 seconds or less. Preferably 2-3 seconds. Will be using stopwatch for the timer. Now show me a website that meets those requirements and uses PHP, I'll be glad to support your argument about PHP w/o threads :) BTW, this is not even enterprise requirement. I may have another possible project where # products is over 10 million easily. With similar requirements when the user click on category. Do you think this site, which currently isn't, can run on PHP? That strikes me as a pretty stiff target, no matter how you look at it. You effectively want 6 major queries at once, plus response in under 3 seconds on a 75 row product table. I'm not sure I could produce that kind of performance in C at the command line. (I'm sure some smart guy on the list will say he can do it in 2 seconds flat over a 10 Base 2 network with teletypes and acoustic modems.) Which brings me to my question. Why do people expect console-level performance from a web browser? It's kind of rhetorical, since people want everything they can get and more all the time. But if performance came up as a customer question for me, I'd make it clear that they're not going to get console-level performance from a web browser, unless they want to spend a whole lot more money. Neither the world wide web nor browser software were ever designed primarily with speed in mind. The internet is not your local 64-bit 10 gigabyte memory loaded machine. Paul -- Paul M. Foster The response time, max 5 seconds, will be tested on local gigabit LAN to ensure the adequate response (optimized DB code proper hardware) without worrying about users' connection limit and site's upload bandwidth limit (which can easily rectify). Then thereafter will be doing stress test of about 10 concurrent users. As for the major queries, that's where threads come in, IMO, because those queries depend on 1 primary parameter (category ID) and 1 secondary parameter (language ID). This particular site starts with 500 products about 15 categories, without many of those mentioned filters, later grew to its current state. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] PHP to access shell script to print barcodes
Well, that did something, and it does sound like it should work. I've scoured
the web and haven't found anyone with code that does what I'm trying to do.
I've got a working, hardcoded Postscript file here:
http://www.winecarepro.com/kiosk/fast/shell/barcodemerge.ps
But I need to somehow serve it with PHP, so I can change some variables in it.
By putting headers in place with PHP, and then doing an echo of the
postscript, I get postscript errors (though Preview doesn't tell me what the
error is):
http://www.winecarepro.com/kiosk/fast/shell/serverps.ps
Trying to trick the web-browser into thinking it's receiving Postscript from a
PHP file is tricky. I don't know what to do next.
Here's the code I was using in the above url:
http://www.winecarepro.com/kiosk/fast/shell/serveps.php.zip
It's not clear to me if the server is parsing the postscript first and then
serving it, or if the server is server the postscript as-is and the browser
sends it to Preview which interprets it.
I basically want to replicate the functionality found here:
http://blog.maniac.nl/webbased-pdf-lto-barcode-generator/
On Mar 23, 2010, at 5:37 PM, Peter Lind wrote:
You can create a .php script that sets a proper header to make the
browser download the file rather than display it. That also allows you
to set the filename for the download. What you'd need to do is include
something like:
header(Content-Disposition: attachment; filename: 'barcodemerge.ps');
That tells the browser to download the file. You can also try setting
the content-type
header('Content-type: application/postscript');
Either of the above might do the trick for you.
Regards
Peter
On 23 March 2010 22:10, Rob Gould gould...@me.com wrote:
I love the idea of using PHP to insert data into Postscript. I'm just not
sure how to make it happen.
The good news is that I've got barcodes drawing just the way I need them:
http://www.winecarepro.com/kiosk/fast/shell/barcodemerge.ps
The bad news is that's all hard-coded Postscript. I'd like to take your
suggestion and use PHP to loop-through and draw the barcodes - - - however,
if I put anything that resembles PHP in my .ps file, bad things happen.
Anyone know the secret to creating a postscript .ps file that had PHP code
injecting data into it?
Here's the source file that works. Where PHP would be handy is at the very
bottom of the script
http://www.winecarepro.com/kiosk/fast/shell/barcodemerge.ps.zip
On Mar 23, 2010, at 7:48 AM, Richard Quadling wrote:
On 23 March 2010 05:48, Jochem Maas joc...@iamjochem.com wrote:
Op 3/23/10 3:27 AM, Rob Gould schreef:
I am trying to replicate the functionality that I see on this site:
http://blog.maniac.nl/webbased-pdf-lto-barcode-generator/
Notice after you hit SUBMIT QUERY, you get a PDF file with a page of
barcodes. That's _exactly_ what I'm after.
Fortunately, the author gives step-by-step instructions on how to do this
on this page:
http://blog.maniac.nl/2008/05/28/creating-lto-barcodes/
So I've gotten through all the steps, and have created the
barcode_with_samples.ps file, and have it hosted here:
http://www.winecarepro.com/kiosk/fast/shell/
Notice how the last few lines contain the shell-script that renders the
postscript:
#!/bin/bash
BASE=”100″;
NR=$BASE
for hor in 30 220 410
do
ver=740
while [ $ver -ge 40 ];
do
printf -v FNR “(%06dL3)” $NR
echo “$hor $ver moveto $FNR (includetext height=0.55) code39 barcode”
let ver=$ver-70
let NR=NR+1
done
done
I need to somehow create a PHP script that executes this shell script.
And after doing some research, it sounds like
I need to use the PHP exec command, so I do that with the following file:
http://www.winecarepro.com/kiosk/fast/shell/printbarcodes.php
Which has the following script:
?php
$command=http://www.winecarepro.com/kiosk/fast/shell/barcode_with_sample.ps;;
exec($command, $arr);
echo $arr;
?
And, as you can see, nothing works. I guess firstly, I'd like to know:
A) Is this PHP exec call really the way to go with executing this shell
script? Is there a better way? It seems to me like it's not really
executing.
that's what exec() is for. $command need to contain a *local* path to the
command in question, currently your
trying to pass a url to bash ... which obviously doesn't do much.
the shell script in question needs to have the executable bit set in order
to run (either that or change to command to
run bash with your script as an argument)
I'd also suggest putting the shell script outside of your webroot, or at
least in a directory that's not accessable
from the web.
--
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I think this is a translation of the script to PHP.
?php
$BASE = 100;
$NR = $BASE;
foreach(array(30, 220, 410) as $hor) {
$ver = 740;
