Bug #79846 [Com]: 8c67c166996 broke simple regexp

Edit report at https://bugs.php.net/bug.php?id=79846&edit=1 ID: 79846 Comment by: sjon@php.net Reported by: sjon@php.net Summary: 8c67c166996 broke simple regexp Status: Open Type: Bug Package: PCRE related Operating System: archLinux PHP Version: 8.0.0alpha2 Block user comment: N Private report: N New Comment: Probably the same issue also caused https://3v4l.org/ejl8v Previous Comments: ------------------------------------------------------------------------ [2020-07-13 11:27:34] sjon@php.net Description: ------------ I have bisected commit 8c67c166996ae1d6809f0beaf691836e37d6afc1 to fail unexpectedly on a pretty simple regexp, see https://3v4l.org/2vTf0 pcre2test works fine implying a bug in PHP Test script: --------------- $item = "component_phase_1"; preg_match("/([a-z]+_[a-z]+_*[a-z]+)_?(\d+)?/", $item, $match); var_dump($match); Expected result: ---------------- array(3) { [0]=> string(17) "component_phase_1" [1]=> string(15) "component_phase" [2]=> string(1) "1" } Actual result: -------------- array(0) { } ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=79846&edit=1