Online PHP editor | refs for lEeLG

<?php $string='先秦兩漢'; var_export(preg_split('~~u', $string, 0, PREG_SPLIT_NO_EMPTY)); echo "\n---\n"; var_export(preg_split('~\X\K~u', $string, 0, PREG_SPLIT_NO_EMPTY)); echo "\n---\n"; var_export(preg_split('~\X\K(?!$)~u', $string)); echo "\n---\n"; var_export(mb_split('\X\K(?!$)', $string)); echo "\n---\n"; var_export(preg_match_all('~\X~u', $string, $out) ? $out[0] : []);