Bug #70110 [Com]: preg_match problem

Edit report at https://bugs.php.net/bug.php?id=70110&edit=1 ID: 70110 Comment by: me at kelunik dot com Reported by: bugzilla77 at gmail dot com Summary: preg_match problem Status: Analyzed Type: Bug Package: PCRE related Operating System: * PHP Version: 7.0.0beta1 Assigned To: cmb Block user comment: N Private report: N New Comment: There's an even easier case that fails: preg_match('~(a)*~', str_repeat('a', 5431), $match); http://3v4l.org/CGSqa Previous Comments: ------------------------------------------------------------------------ [2015-07-23 10:16:10] cmb@php.net No, not a bug in libpcre. PHP has to cater to PCRE_ERROR_JIT_STACKLIMIT. ------------------------------------------------------------------------ [2015-07-22 14:03:30] cmb@php.net Well, that appears to be a bug in libpcre. I've filed a respective report[1], and suspend this ticket for now. [1] <https://bugs.exim.org/show_bug.cgi?id=1663> ------------------------------------------------------------------------ [2015-07-22 12:05:15] cmb@php.net That's related to the PCRE-JIT compilation which is available as of PHP 7. When pcre.jit=0 it works as expected. ------------------------------------------------------------------------ [2015-07-22 09:04:53] bugzilla77 at gmail dot com Description: ------------ Regresion (PHP 5.6.11 no bugy) Test script: --------------- <?php var_dump(preg_match('/^(A{1,2}B)+$/',str_repeat('AB',8192))); ?> Expected result: ---------------- int(1) Actual result: -------------- bool(false) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=70110&edit=1