PHP按字符串长度瓜分成数组,支持中文

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/** * 将unicode字符串按传入长度分割成数组 * @param  string  $str 传入字符串 * @param  integer $l   字符串长度 * @return mixed      数组或false */ function str_split_unicode($str, $l = 0) {    if ($l > 0) {        $ret = array();        $len = mb_strlen($str, "UTF-8");        for ($i = 0; $i < $len; $i += $l) {            $ret[] = mb_substr($str, $i, $l, "UTF-8");        }        return $ret;    }    return preg_split("//u", $str, -1, PREG_SPLIT_NO_EMPTY); }

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<?php function str_split_unicode($str, $l = 0) {     if ($l > 0) {         $ret = array();         $len = mb_strlen($str, "UTF-8");         for ($i = 0; $i < $len; $i += $l) {             $ret[] = mb_substr($str, $i, $l, "UTF-8");         }         return $ret;     }     return preg_split("//u", $str, -1, PREG_SPLIT_NO_EMPTY); } ?> $s = "还未如愿sss见gfg者不rtret不朽"; // Mild milk print_r(str_split($s, 5)); print_r(str_split_unicode($s, 5)); //输出 //Array ( [0] => 还?? [1] => ?如? [2] => ??sss [3] => 见gf [4] => g者? [5] => ??rtr [6] => et不 [7] => 朽 ) //Array ( [0] => 还未如愿s [1] => ss见gf [2] => g者不rt [3] => ret不朽 )

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