Bug #69256 [NEW]: mb_split() cannot divide into char by char

From: ryosuke_i_628 at yahoo dot co dot jp Operating system: PHP version: Irrelevant Package: Regexps related Bug Type: Bug Bug description:mb_split() cannot divide into char by char Description: ------------ mb_split() cannot divide into char by char using the expression '(?<!\A)(?!\z)'. Test script: --------------- $str = "あいうえお"; mb_regex_encoding('UTF-8'); print_r([ 'PCRE' => preg_split('/(?<!\A)(?!\z)/u', $str), '鬼車' => mb_split('(?<!\A)(?!\z)', $str) ]); Expected result: ---------------- Array ( [PCRE] => Array ( [0] => あ [1] => い [2] => う [3] => え [4] => お ) [鬼車] => Array ( [0] => あ [1] => い [2] => う [3] => え [4] => お ) ) [Finished in 0.5s] Actual result: -------------- Array ( [PCRE] => Array ( [0] => あ [1] => い [2] => う [3] => え [4] => お ) [鬼車] => Array ( [0] => あ [1] => いうえお ) ) [Finished in 0.5s] -- Edit bug report at https://bugs.php.net/bug.php?id=69256&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=69256&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=69256&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=69256&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=69256&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=69256&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=69256&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=69256&r=needscript Try newer version: https://bugs.php.net/fix.php?id=69256&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=69256&r=support Expected behavior: https://bugs.php.net/fix.php?id=69256&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=69256&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=69256&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=69256&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=69256&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=69256&r=dst IIS Stability: https://bugs.php.net/fix.php?id=69256&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=69256&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=69256&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=69256&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=69256&r=mysqlcfg