--TEST-- Check for empty pattern --SKIPIF-- <?php extension_loaded('mbstring') or die('skip mbstring not available'); ?> --FILE-- <?php mb_ereg_search_init("","",""); mb_split("",""); mb_ereg_search_regs(); ?> --EXPECTF-- Warning: mb_ereg_search_init(): Empty pattern in %s on line %d Warning: mb_ereg_search_regs(): No regex given in %s on line %d