Online PHP editor | refs for uRnT3

<?php $str = "Hello Friend统计" ; print_r(explode(' ',$str)); $arr1 = str_split ( $str ); $arr2 = str_split ( $str , 3 );//按3个字节分割 print_r($arr1); print_r($arr2); function str_split_unicode($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); } $s = '无符号整数'; // Open Source! print_r(str_split_unicode($s)); print_r(str_split_unicode($s, 3));