#44623 [NEW]: Inconsistent behaviour by same type of regex

From: rich dot sapporo at gmail dot com Operating system: Mac OS X 10.5.2 PHP version: 5.2.5 PHP Bug Type: Regexps related Bug description: Inconsistent behaviour by same type of regex 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 bug report at http://bugs.php.net/?id=44623&edit=1 -- Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=44623&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=44623&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=44623&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=44623&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=44623&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=44623&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=44623&r=needscript Try newer version: http://bugs.php.net/fix.php?id=44623&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=44623&r=support Expected behavior: http://bugs.php.net/fix.php?id=44623&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=44623&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=44623&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=44623&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=44623&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=44623&r=dst IIS Stability: http://bugs.php.net/fix.php?id=44623&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=44623&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=44623&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=44623&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=44623&r=mysqlcfg