php-general Digest 25 Apr 2011 19:45:32 -0000 Issue 7283
Topics (messages 312468 through 312483):
Re: str_replace
312468 by: Daniel Brown
312469 by: Daniel Brown
312470 by: Adam Richardson
312471 by: Stuart Dallas
312474 by: Richard Quadling
312483 by: Jim Lucas
htaccess question
312472 by: Al
312473 by: Al
trouble using "is_file()"
312475 by: Jim Giner
312476 by: Stuart Dallas
312477 by: Jim Giner
312478 by: Stuart Dallas
312479 by: Jim Giner
312480 by: Stuart Dallas
312481 by: Jim Giner
312482 by: Stuart Dallas
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----------------------------------------------------------------------
--- Begin Message ---
On Sun, Apr 24, 2011 at 11:44, Ron Piggott
<ron.pigg...@actsministries.org> wrote:
>
> I am trying to figure out a syntax that will replace each instance of % with
> a different letter chosen randomly from the string $puzzle_filler.
> $puzzle_filler is populated with the letters of the alphabet, roughly in the
> same ratio as they are used.
>
> This syntax replaces each instance of % with the same letter:
>
> $puzzle[$i] = str_replace ( "%" , ( substr ( $puzzle_filler , rand(1,98) , 1
> ) ) , $puzzle[$i] );
>
> Turning this:
>
> %ECARBME%TIPLUP%%%%%%%E%%
>
> Into:
>
> uECARBMEuTIPLUPuuuuuuuEuu
>
> Is there a way to tweak my str_replace so it will only do 1 % at a time, so
> a different replacement letter is selected?
>
> This is the syntax specific to choosing a replacement letter at random:
>
> substr ( $puzzle_filler , rand(1,98) , 1 );
I just mocked this up now, and only tested it twice. It's not the
most elegant solution, and probably shouldn't be used in high-demand
situations, but it should at least serve to get you started.
<?php
$str = '%ECARBME%TIPLUP%%%%%%%E%%';
$chars = 'abcdefghijklmnopqrstuvwxyz';
echo multi_replace($str,'%',$chars).PHP_EOL; // Case-sensitive,
random, straight replace
echo multi_replace($str,'%',$chars,0,1,1).PHP_EOL; //
Case-insensitive, random, randomg casing
function
multi_replace($str,$targ,$chars,$sens=true,$random=true,$caserand=false)
{
// Loop through while $targ is still found in $str
while (strstr($str,$targ) !== false) {
// If we're randomizing, pick the character; else the
first (or only)
if ($random == true && !is_null($random)) {
$replace = $chars[mt_rand(0,(strlen($chars) - 1))];
} else {
$replace = substr($chars,0,1);
}
// If we want random casing, do that; else make no change
if ($caserand == true && !is_null($caserand)) {
if (mt_rand(0,1) === 0) {
$replace = strtolower($replace);
} else {
$replace = strtoupper($replace);
}
}
// If we don't want case sensitivity, set the regexp modifier
$mod = $sens == false || is_null($sens) ? 'i' : '';
// Perform the match and replace only one character now
$str = preg_replace('/'.$targ.'/U'.$mod,$replace,$str,1);
} // End of loop
// Return the modified string
return $str;
}
?>
--
</Daniel P. Brown>
Network Infrastructure Manager
http://www.php.net/
--- End Message ---
--- Begin Message ---
On Sun, Apr 24, 2011 at 12:33, Daniel Brown <danbr...@php.net> wrote:
>
> I just mocked this up now, and only tested it twice. It's not the
> most elegant solution, and probably shouldn't be used in high-demand
> situations, but it should at least serve to get you started.
And since email wrecks code formatting, it's also up here:
http://links.parasane.net/nth2
--
</Daniel P. Brown>
Network Infrastructure Manager
http://www.php.net/
--- End Message ---
--- Begin Message ---
On Sun, Apr 24, 2011 at 11:44 AM, Ron Piggott <
ron.pigg...@actsministries.org> wrote:
>
> I am trying to figure out a syntax that will replace each instance of %
> with a different letter chosen randomly from the string $puzzle_filler.
> $puzzle_filler is populated with the letters of the alphabet, roughly in the
> same ratio as they are used.
>
> This syntax replaces each instance of % with the same letter:
>
> $puzzle[$i] = str_replace ( "%" , ( substr ( $puzzle_filler , rand(1,98) ,
> 1 ) ) , $puzzle[$i] );
>
> Turning this:
>
> %ECARBME%TIPLUP%%%%%%%E%%
>
> Into:
>
> uECARBMEuTIPLUPuuuuuuuEuu
>
> Is there a way to tweak my str_replace so it will only do 1 % at a time, so
> a different replacement letter is selected?
>
> This is the syntax specific to choosing a replacement letter at random:
>
> substr ( $puzzle_filler , rand(1,98) , 1 );
>
> Thanks for your help.
>
> Ron
>
> The Verse of the Day
> “Encouragement from God’s Word”
> http://www.TheVerseOfTheDay.info
>
> --
> PHP General Mailing List (http://www.php.net/)
> To unsubscribe, visit: http://www.php.net/unsub.php
>
>
Quick guess trying to be fairly performant:
function fill_puzzle($puzzle, $puzzle_filler) {
$puzzle_length = strlen($puzzle);
$puzzle_filler_length = strlen($puzzle_filler);
for ($i = 0; $i < $puzzle_length; $i++) {
if ($puzzle[$i] == '%') {
$puzzle[$i] = $puzzle_filler[mt_rand(0, ($puzzle_filler_length - 1))];
}
}
return $puzzle;
}
echo fill_puzzle($puzzle = "%ECARBME%TIPLUP%%%%%%%E%%", $puzzle_filler =
"ABCDEFGHIJKLMNOPQRSTUVWXYZ");
Happy Easter :)
Adam
--
Nephtali: A simple, flexible, fast, and security-focused PHP framework
http://nephtaliproject.com
--- End Message ---
--- Begin Message ---
On Sunday, 24 April 2011 at 16:44, Ron Piggott wrote:
> I am trying to figure out a syntax that will replace each instance of % with
> a different letter chosen randomly from the string $puzzle_filler.
> $puzzle_filler is populated with the letters of the alphabet, roughly in the
> same ratio as they are used.
>
> This syntax replaces each instance of % with the same letter:
>
> $puzzle[$i] = str_replace ( "%" , ( substr ( $puzzle_filler , rand(1,98) ,
> 1 ) ) , $puzzle[$i] );
>
> Turning this:
>
> %ECARBME%TIPLUP%%%%%%%E%%
>
> Into:
>
> uECARBMEuTIPLUPuuuuuuuEuu
>
> Is there a way to tweak my str_replace so it will only do 1 % at a time, so
> a different replacement letter is selected?
>
> This is the syntax specific to choosing a replacement letter at random:
>
> substr ( $puzzle_filler , rand(1,98) , 1 );
>
> Thanks for your help.
I would probably go with http://php.net/preg_replace_callback
-Stuart
--
Stuart Dallas
3ft9 Ltd
http://3ft9.com/
--- End Message ---
--- Begin Message ---
On 24 April 2011 16:44, Ron Piggott <ron.pigg...@actsministries.org> wrote:
>
> I am trying to figure out a syntax that will replace each instance of % with
> a different letter chosen randomly from the string $puzzle_filler.
> $puzzle_filler is populated with the letters of the alphabet, roughly in the
> same ratio as they are used.
>
> This syntax replaces each instance of % with the same letter:
>
> $puzzle[$i] = str_replace ( "%" , ( substr ( $puzzle_filler , rand(1,98) , 1
> ) ) , $puzzle[$i] );
>
> Turning this:
>
> %ECARBME%TIPLUP%%%%%%%E%%
>
> Into:
>
> uECARBMEuTIPLUPuuuuuuuEuu
>
> Is there a way to tweak my str_replace so it will only do 1 % at a time, so
> a different replacement letter is selected?
>
> This is the syntax specific to choosing a replacement letter at random:
>
> substr ( $puzzle_filler , rand(1,98) , 1 );
>
> Thanks for your help.
>
> Ron
>
> The Verse of the Day
> “Encouragement from God’s Word”
> http://www.TheVerseOfTheDay.info
>
> --
> PHP General Mailing List (http://www.php.net/)
> To unsubscribe, visit: http://www.php.net/unsub.php
>
>
Something like this ...
<?php
$s_Text = '%ECARBME%TIPLUP%%%%%%%E%%';
$s_PuzzleFilter = '0123456789';
echo preg_replace_callback(
'`%`',
function() use($s_PuzzleFilter) {
return substr($s_PuzzleFilter, mt_rand(0, strlen($s_PuzzleFilter)
- 1), 1);},
$s_Text
);
--
Richard Quadling
Twitter : EE : Zend
@RQuadling : e-e.com/M_248814.html : bit.ly/9O8vFY
--- End Message ---
--- Begin Message ---
On 4/24/2011 8:44 AM, Ron Piggott wrote:
>
> I am trying to figure out a syntax that will replace each instance of % with a
> different letter chosen randomly from the string $puzzle_filler.
> $puzzle_filler
> is populated with the letters of the alphabet, roughly in the same ratio as
> they
> are used.
>
> This syntax replaces each instance of % with the same letter:
>
> $puzzle[$i] = str_replace ( "%" , ( substr ( $puzzle_filler , rand(1,98) , 1
> ) )
> , $puzzle[$i] );
>
> Turning this:
>
> %ECARBME%TIPLUP%%%%%%%E%%
>
> Into:
>
> uECARBMEuTIPLUPuuuuuuuEuu
>
> Is there a way to tweak my str_replace so it will only do 1 % at a time, so a
> different replacement letter is selected?
>
> This is the syntax specific to choosing a replacement letter at random:
>
> substr ( $puzzle_filler , rand(1,98) , 1 );
>
> Thanks for your help.
>
> Ron
>
> The Verse of the Day
> “Encouragement from God’s Word”
> http://www.TheVerseOfTheDay.info
>
How about something simple like this?
<?php
$input = '%ECARBME%TIPLUP%%%%%%%E%%';
$random_chars = range('a', 'z');
echo 'Before: '.$input.PHP_EOL;
while ( ($pos = strpos($input, '%') ) !== false )
$input[$pos] = $random_chars[array_rand($random_chars)];
echo 'After: '.$input.PHP_EOL;
?>
--- End Message ---
--- Begin Message ---
I want to restrict access to all files except one on my site and in parent dir.
Thought this should work; but it doesn't.
<Files *>
Order Deny,Allow
Deny from all
Allow from xx.36.2.215
</Files>
xx.36.2.215 is actual value IP
This file makes a captcha image and is called with
<img src="makeScodeImg.php" alt="missing img file" /> in file /dir/control.php
makeScodeImg.php is=> /dir/includes/makeScodeImg.php
Works fine if "allow all" just for testing
Thanks
--- End Message ---
--- Begin Message ---
On 4/24/2011 5:48 PM, Al wrote:
I want to restrict access to all files except one on my site and in parent dir.
Thought this should work; but it doesn't.
<Files *>
Order Deny,Allow
Deny from all
Allow from xx.36.2.215
</Files>
xx.36.2.215 is actual value IP
This file makes a captcha image and is called with
<img src="makeScodeImg.php" alt="missing img file" /> in file /dir/control.php
makeScodeImg.php is=> /dir/includes/makeScodeImg.php
Works fine if "allow all" just for testing
Thanks
Whoops. I meant to say I want to restrict access to all files in a directory
[/includes] except allow access to makeScodeImg.php from one in the parent
dir/control.php
--- End Message ---
--- Begin Message ---
I've got a d/e screen that collects a path and a file name. My script then
attempts to verify that the file exists before moving on to do things with
it.
I've displayed the combined fields and they are showing correctly - ie,
"c:\temp\emax.pdf" as well as "c:/temp/emax.pdf" . But when I use that var
in "is_file($fname)" I get a false returned. But I know it exists there.
Never used this function before, so I'm probably doing something stupid.
btw - running on an XP machine with php 5.2
--- End Message ---
--- Begin Message ---
On Monday, 25 April 2011 at 00:26, Jim Giner wrote:
I've got a d/e screen that collects a path and a file name. My script then
> attempts to verify that the file exists before moving on to do things with
> it.
> I've displayed the combined fields and they are showing correctly - ie,
> "c:\temp\emax.pdf" as well as "c:/temp/emax.pdf" . But when I use that var
> in "is_file($fname)" I get a false returned. But I know it exists there.
>
> Never used this function before, so I'm probably doing something stupid.
> btw - running on an XP machine with php 5.2
Are you expecting it to check that the file exists on the client or on the
server?
Remember that PHP runs on the server and cannot access the client's file system.
-Stuart
--
Stuart Dallas
3ft9 Ltd
http://3ft9.com/
--- End Message ---
--- Begin Message ---
Hmmm... did not realize that. From all the code I examined I thought it
was looking at the client.
So how does one do a file upload from the client to the host? Preferably
with ftp rather than http.
--- End Message ---
--- Begin Message ---
On Monday, 25 April 2011 at 01:07, Jim Giner wrote:
Hmmm... did not realize that. From all the code I examined I thought it
> was looking at the client.
>
> So how does one do a file upload from the client to the host? Preferably
> with ftp rather than http.
FTP is a completely separate system from PHP, so it's a bit more involved to
set up but it can be done. I know there are a few flash components that work
this way - Google can help you find them. Why would you prefer to use FTP over
HTTP?
As for the HTTP POST method...
http://www.php.net/manual/en/features.file-upload.post-method.php
-Stuart
--
Stuart Dallas
3ft9 Ltd
http://3ft9.com/
--- End Message ---
--- Begin Message ---
because I've seen many comments in my research that ftp is better for larger
files. I'm trying to upload photos so I know that they can be big.
--- End Message ---
--- Begin Message ---
On Monday, 25 April 2011 at 01:24, Jim Giner wrote:
because I've seen many comments in my research that ftp is better for larger
> files. I'm trying to upload photos so I know that they can be big.
Considering the number of websites out there that use HTTP POST for uploading
photos I really don't think you need to worry about it. Code it defensively,
assume things will go wrong, and it will work as well for you as it does for
them. In the grand scheme of things photo files are relatively small.
-Stuart
--
Stuart Dallas
3ft9 Ltd
http://3ft9.com/
--- End Message ---
--- Begin Message ---
Well, I'll take your word for it. As well as that of all the examples on
Google that come up when looking for "php ftp uploads" which are NOT doing
ftp uploads at all. Seems that many people are calling the 'move' of their
file from one host folder to another an 'upload'. Thanks!
--- End Message ---
--- Begin Message ---
You're probably seeing references to the move_uploaded_file PHP function which
is used when processing an HTTP POST file upload. However, the fact that a
simple query like that didn't give you anything related should tell you how
often FTP upload is integrated into a website. Modify your search terms a bit
and you'll get a whole bunch of java applets and flash components that can do
FTP upload, but getting them cleanly integrated into a web interface is usually
more effort than it's worth.
Don't take my word for it... Flickr uses HTTP. Facebook uses HTTP. They both
use it for video too! Hell, even YouTube uses HTTP! Every other site I've ever
come across to which you can upload photos and videos used HTTP. They usually
do it via flash or java with nice looking progress indicators, but it's still
HTTP. The only time I've seen FTP as an option was on a photo archiving site
which was expecting you to upload a very large number of RAW files at a time -
we're talking hundreds of megs.
-Stuart
--
Stuart Dallas
3ft9 Ltd
http://3ft9.com/
On Monday, 25 April 2011 at 01:32, Jim Giner wrote:
> Well, I'll take your word for it. As well as that of all the examples on
> Google that come up when looking for "php ftp uploads" which are NOT doing
> ftp uploads at all. Seems that many people are calling the 'move' of their
> file from one host folder to another an 'upload'. Thanks!
>
>
>
> --
> PHP General Mailing List (http://www.php.net/)
> To unsubscribe, visit: http://www.php.net/unsub.php
>
--- End Message ---
