Bug #52732 [Opn->Csd]: Docs say preg_match() returns FALSE on error, but it returns int(0)

Edit report at http://bugs.php.net/bug.php?id=52732&edit=1 ID: 52732 Updated by: felipe@php.net Reported by: drew at dinomite dot net Summary: Docs say preg_match() returns FALSE on error, but it returns int(0) -Status: Open +Status: Closed Type: Bug Package: PCRE related Operating System: Any PHP Version: 5.3.3 -Assigned To: +Assigned To: felipe Block user comment: N New Comment: This bug has been fixed in SVN. Snapshots of the sources are packaged every three hours; this change will be in the next snapshot. You can grab the snapshot at http://snaps.php.net/. Thank you for the report, and for helping us make PHP better. Thanks for the patch! Previous Comments: ------------------------------------------------------------------------ [2010-11-06 19:32:12] felipe@php.net Automatic comment from SVN on behalf of felipe Revision: http://svn.php.net/viewvc/?view=revision&amp;revision=305132 Log: - Fixed bug #52732 (Docs say preg_match() returns FALSE on error, but it returns int(0)) patch by: slugonamission at gmail dot com ------------------------------------------------------------------------ [2010-08-29 19:42:25] drew at dinomite dot net Description: ------------ The documentation states that preg_match() will return the number of matches (0 or 1) or bool(false) on error. The latter doesn't happen—preg_match() is returning int(0) when an error occurs. Test script: --------------- <?php // Ensure we hit the backtrack limit ini_set('pcre.backtrack_limit', 1); // See http://us.php.net/preg_last_error $ret = preg_match('/(?:\D+|<\d+>)*[!?]/', 'foobar foobar foobar'); echo 'Return value is '; var_dump($ret); if ($ret === false) { echo '$ret is false; preg_last_error() says: ' . preg_last_error() . "\n"; } else { echo '$ret is not false; preg_last_error() says: ' . preg_last_error() . "\n"; } Expected result: ---------------- Return value is bool(false) $ret is false; preg_last_error() says: 2 Actual result: -------------- Return value is int(0) $ret is not false; preg_last_error() says: 2 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/bug.php?id=52732&edit=1