php的str_split的雙位元版本

比較難找，有小改寫一下，可以用。

	<?php
	function mb_str_split($string,$string_length=1) {
	if(mb_strlen($string)&gt;$string_length || !$string_length) {
	do {
	$c = mb_strlen($string);
	$parts[] = mb_substr($string,0,$string_length);
	$string = mb_substr($string,$string_length);
	}while(!empty($string));
	} else {
	$parts = array($string);
	}
	return $parts;
	}

view raw mb_str_split.php hosted with ❤ by GitHub