#38597 [NEW]: preg_match with long match returns blanc page

From: Date: Fri, 25 Aug 2006 19:59:49 +0000
Subject: #38597 [NEW]: preg_match with long match returns blanc page
Groups: php.bugs 
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From: koen dot devreeze at gmail dot com Operating system: Windows XP PHP version: 5.1.5 PHP Bug Type: PCRE related Bug description: preg_match with long match returns blanc page Description: ------------ When processing this code. The parsing ends on the preg_match function. $t has 475 characters in it. Remove one char and the script works again. PS.: This was also tested with php 5.1.4 on gentoo linux without any problems. Reproduce code: --------------- $t = "---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------"; $text = " <p>".$t."</p> <p>Some text doesn't matter how long</p> "; //echo strlen($t); $pattern = '/<p([a-z "=]*)?>((.)*?)<(\/)?p>/'; preg_match($pattern, $text, $paragraphs) or die("died"); echo $paragraphs[0]; Expected result: ---------------- $t should be displayed no matter how many chars it has (though considering limitation of PCRE). Actual result: -------------- Script ends on preg_match after a few seconds of 100% CPU load. No errors no crashes. -- Edit bug report at http://bugs.php.net/?id=38597&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=38597&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=38597&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=38597&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=38597&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=38597&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=38597&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=38597&r=needscript Try newer version: http://bugs.php.net/fix.php?id=38597&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=38597&r=support Expected behavior: http://bugs.php.net/fix.php?id=38597&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=38597&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=38597&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=38597&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=38597&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=38597&r=dst IIS Stability: http://bugs.php.net/fix.php?id=38597&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=38597&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=38597&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=38597&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=38597&r=mysqlcfg

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