ID: 41638
Updated by: [EMAIL PROTECTED]
Reported By: hirainchen at gmail dot com
-Status: Open
+Status: Bogus
Bug Type: PCRE related
Operating System: ALL
PHP Version: 5.2.3
New Comment:
Sorry, I misread your original regex, but still this isn't a PHP bug.
The problem here is that pcre is hitting the recursion limit with your
regex (while I understand why - nesting of * - I don't think it was
supposed to happen).
Please forward your bug report to the PCRE dev team at:
[EMAIL PROTECTED]
Previous Comments:
------------------------------------------------------------------------
[2007-06-10 06:09:18] hirainchen at gmail dot com
to nlopess:
the result of your regex is:
<xmp>Array
(
[0] => Array
(
[0] => 'loopt'
)
[1] => Array
(
[0] => '
)
[2] => Array
(
[0] => loopt
)
[3] => Array
(
[0] => t
)
[4] => Array
(
[0] =>
)
)
not totally equal the expected result, and my regex is working well
with PHP5.2.1+PCRE 6.7. I google this problem,found many people met the
same kind issue.
------------------------------------------------------------------------
[2007-06-09 21:09:18] [EMAIL PROTECTED]
your regex is wrong.
try e.g. this:
preg_match_all('/([\'"])((.*(\1)*)*)\1/sU',$str,$str_instead);
------------------------------------------------------------------------
[2007-06-08 18:41:07] hirainchen at gmail dot com
had tried to set as 5000,1000,500 but not helpful
------------------------------------------------------------------------
[2007-06-08 18:34:03] [EMAIL PROTECTED]
Looks like stack overflow to me. Happens also on Linux.
Try setting your limits lower.
------------------------------------------------------------------------
[2007-06-08 17:57:22] hirainchen at gmail dot com
Description:
------------
PCRE Library Version => 7.0 18-Dec-2006
this version PCRE seems doesn't work well with PHP.
I met same problem with php5.2.1+PCRE 7.0 in FreeBSD, resolved by
downgrading to PCRE 6.7(blog detail:
http://translate.google.com/translate?u=http%3A%2F%2Fhi.baidu.com%2Frainchen%2Fblog%2Fitem%2Fb6321038cf289bf3b211c7bf.html&langpair=zh%7Cen&hl=en&newwindow=1&ie=UTF-8&oe=UTF-8&prev=%2Flanguage_tools)
I had tried to set php.ini as :
[Pcre]
pcre.backtrack_limit=100000
pcre.recursion_limit=100000
but not helping
Reproduce code:
---------------
<?php
$str = "repeater id='loopt' dataSrc=subject colums=2";
preg_match_all("/(['\"])((.*(\\\\\\1)*)*)\\1/sU",$str,$str_instead);
echo "<xmp>";
print_r($str_instead);
?>
Expected result:
----------------
<xmp>Array
(
[0] => Array
(
[0] => 'loopt'
)
[1] => Array
(
[0] => '
)
[2] => Array
(
[0] => loopt
)
[3] => Array
(
[0] => loopt
)
[4] => Array
(
[0] =>
)
)
Actual result:
--------------
<xmp>Array
(
[0] => Array
(
)
[1] => Array
(
)
[2] => Array
(
)
[3] => Array
(
)
[4] => Array
(
)
)
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=41638&edit=1
