Bug #70304 [Com]: Regex not matching on PHP7
Edit report at https://bugs.php.net/bug.php?id=70304&edit=1
ID: 70304
Comment by: hzmester at freemail dot hu
Reported by: giggsey at gmail dot com
Summary: Regex not matching on PHP7
Status: Analyzed
Type: Bug
Package: PCRE related
PHP Version: 7.0.0beta3
Block user comment: N
Private report: N
New Comment:
This is a corner case bug of range optimization in PCRE-JIT. I fixed it. Thank you for reporting it.
Previous Comments:
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[2015-08-21 01:25:09] cmb@php.net
<http://markmail.org/thread/6bcffpbcobyi3ln7>,
is not the problem
here (otherwise $result would be FALSE). Actually, in this case
pcre_exec() returns PCRE_ERROR_NOMATCH (and not
PCRE_ERROR_JIT_STACKLIMIT).
------------------------------------------------------------------------
[2015-08-20 04:34:18] laruence@php.net
see also: https://marc.info/?l=php-internals
------------------------------------------------------------------------
[2015-08-19 14:42:27] cmb@php.net
That is somehow related to the PCRE JIT support. When pcre.jit=0,
the behavior is as expected, see <https://3v4l.org/ZkeV6>.
------------------------------------------------------------------------
[2015-08-19 13:22:20] giggsey at gmail dot com
Description:
------------
Regex: https://regex101.com/r/aZ7pL6/1 which matches
the subject.
However, on PHP7 (and HHVM...), the regular expression fails to match anything.
If I change the first character matching from '[3-5789]' to '[3-578]', it starts
working on PHP7.
Demo @ https://3v4l.org/0SMiZ
Test script:
---------------
<?php
$subject = '512345678';
$failingPattern = '/^(?:[3-5789]\d{8})$/x';
$result = preg_match($failingPattern , $subject, $groups, PREG_OFFSET_CAPTURE);
var_dump($result, $groups);
Expected result:
----------------
int(1)
array(1) {
[0]=>
array(2) {
[0]=>
string(9) "512345678"
[1]=>
int(0)
}
}
Actual result:
--------------
int(0)
array(0) {
}
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Edit this bug report at https://bugs.php.net/bug.php?id=70304&edit=1
Thread (7 messages)