Bug #72693 [NEW]: mb_ereg_search increments search position when a match zero-width

From: ju1ius at laposte dot net Operating system: Debian Sid PHP version: 5.6.24 Package: mbstring related Bug Type: Bug Bug description:mb_ereg_search increments search position when a match zero-width Description: ------------ When provided a pattern that produces a zero-width match, mb_ereg_search increments search position by one, eventhough it shouldn't. Test script: --------------- <?php mb_ereg_search_init('foo'); var_dump(mb_ereg_search('\A')); var_dump(mb_ereg_search_getpos()); var_dump(mb_ereg_search('\s*')); var_dump(mb_ereg_search_getpos()); var_dump(mb_ereg_search('\w+')); var_dump(mb_ereg_search_getpos()); var_dump(mb_ereg_search_getregs()); var_dump(mb_ereg_search('\s*')); var_dump(mb_ereg_search_getpos()); var_dump(mb_ereg_search('\Z')); var_dump(mb_ereg_search_getpos()); Expected result: ---------------- bool(true) int(0) bool(true) int(0) bool(true) int(3) array(1) { [0]=> string(1) "foo" } bool(true) int(3) bool(true) int(3) Actual result: -------------- // warnings suppressed, see bug #72691 bool(true) int(1) bool(true) int(2) bool(true) int(3) array(1) { [0]=> string(1) "o" } bool(true) int(4) bool(false) int(3) -- Edit bug report at https://bugs.php.net/bug.php?id=72693&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=72693&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=72693&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=72693&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=72693&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=72693&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=72693&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=72693&r=needscript Try newer version: https://bugs.php.net/fix.php?id=72693&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=72693&r=support Expected behavior: https://bugs.php.net/fix.php?id=72693&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=72693&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=72693&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=72693&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=72693&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=72693&r=dst IIS Stability: https://bugs.php.net/fix.php?id=72693&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=72693&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=72693&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=72693&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=72693&r=mysqlcfg