#44623 [Fbk->Opn]: Inconsistent behaviour by same type of regex

From: Date: Thu, 03 Apr 2008 11:25:44 +0000
Subject: #44623 [Fbk->Opn]: Inconsistent behaviour by same type of regex
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ID: 44623 User updated by: rich dot sapporo at gmail dot com Reported By: rich dot sapporo at gmail dot com -Status: Feedback +Status: Open Bug Type: PCRE related Operating System: Mac OS X 10.5.2 PHP Version: 5.2.5 Assigned To: fb-req-jani New Comment: My apologies - in my haste to get to an appointment I didn't check the dropdown properly. Currently using PCRE 7.3 (2007-08-28) - will try 7.6 and see if it goes away. Previous Comments: ------------------------------------------------------------------------ [2008-04-03 11:11:32] jani@php.net And how is this _PHP_ bug and not a PCRE bug..? Check with the command line tool 'pcretest' first and compare to version of PCRE lib you've compiled PHP with IF you're not using the bundled one. ------------------------------------------------------------------------ [2008-04-03 02:26:48] rich dot sapporo at gmail dot com Description: ------------ Min/max quantifiers '{}' in preg_match() don't seem to match more than 765 characters. Reproduce code: --------------- // $matches[1] contains the first 765 characters of the string $sample: preg_match("/^(.{765}).*/", $sample, $matches); // doesn't match anything: preg_match("/^(.{766}).*/", $sample, $matches); // Values from {0} to {765} appear to work fine. 766 onwards, nothing gets matched. Expected result: ---------------- I expect the same type of behaviour to happen in both cases. I realize that preg_match() isn't really necessary to match the first x characters in a string, but this problem was affecting a more complex regex I was doing. The "matching the first x chars" example was trying to isolate where the problem was occurring. ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=44623&edit=1

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