From: webez dot cn at gmail dot com
Operating system: Windows 2003
PHP version: 5.2.6
PHP Bug Type: Regexps related
Bug description: str_replace failed when the $subject parameter length exceeds
100009
Description:
------------
if the $subject parameter's length exceeds 100009, str_replace has no
return value.
This has been reproduced on windows 2003 with php 5.2.6 and Linux with php
5.2.5
PS:
If there is backslash in the $subject parameter and $pattern parameter,
the critical poiont will change, the maximum string length to reproduce
this bug will increase.
Reproduce code:
---------------
<?
$dummyText=str_pad("[start]",100016-strlen("[start][end]"),"*")."[end]";
str_replace_test($dummyText);
$dummyText=str_pad("[start]",100017-strlen("[start][end]"),"*")."[end]";
str_replace_test($dummyText);
function str_replace_test($dummyText){
$result=preg_replace("/\[start\](.+?)\[end\]/eis","passed",$dummyText);
$result==""?$result="failed":true;
echo "str_replace with length: ".strlen($dummyText)." ".$result."<br>";
}
?>
Expected result:
----------------
str_replace with length: 100009 passed
str_replace with length: 100010 passed
Actual result:
--------------
str_replace with length: 100009 passed
str_replace with length: 100010 failed
--
Edit bug report at http://bugs.php.net/?id=45488&edit=1
--
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=45488&r=trysnapshot52
Try a CVS snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=45488&r=trysnapshot53
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=45488&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=45488&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=45488&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=45488&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=45488&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=45488&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=45488&r=support
Expected behavior: http://bugs.php.net/fix.php?id=45488&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=45488&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=45488&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=45488&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=45488&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=45488&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=45488&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=45488&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=45488&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=45488&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=45488&r=mysqlcfg
