Edit report at http://bugs.php.net/bug.php?id=51963&edit=1
ID: 51963
Updated by: fel...@php.net
Reported by: lexx918 at mail dot ru
Summary: preg_replace returns NULL, if in line more than 991
blanks
-Status: Open
+Status: Bogus
Type: Bug
Package: PCRE related
Operating System: Windows XP SP3
PHP Version: 5.2.13
New Comment:
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php
Checking the value of preg_last_error() after the fail will revelate you
that there was a backtrack limit error. Which can be fixed by setting a
new value for pcre.backtrack_limit directive. (the default is 100000)
http://docs.php.net/manual/en/pcre.configuration.php
Previous Comments:
------------------------------------------------------------------------
[2010-06-01 10:58:43] lexx918 at mail dot ru
Description:
------------
One of my regular expressions leads to return of emptiness to functions
preg_replace if the initial line contains more than 991 blanks. Example
more low. The first line works, the second dies also I lose all
contents.
Test script:
---------------
$text = 'test'.str_repeat(' ', 991).'test'; // work
$text = 'test'.str_repeat(' ', 992).'test'; // empty :(
if ($text = preg_replace('/(.*?\s+)"([^\s]+.*?)/', '$1<quot1>$2',
$text)) {
echo "GOOD\n";
} else {
echo "BAD\n";
}
------------------------------------------------------------------------
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Edit this bug report at http://bugs.php.net/bug.php?id=51963&edit=1
