PHP+regular splits alphanumeric and Chinese characters in a string

For example: $str="How does php split the 322 alphanumeric characters sf f45d and Chinese_ in the string?"; Split by numbers or letters.

$str = "php如何将字 符串中322的字母数字Asf f45d和中文_分割？";
$arr = preg_split("/([a-zA-Z0-9]+)/", $str, 0, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);  
print_r($arr);

Result

$new = array();
$new[0]="php";
$new[1]="如何将字 符串中";
$new[2]="322";
$new[3]="的字母数字";
$new[4]="sf";
$new[5]=" ";
$new[6]="f45d";
$new[7]="和中文_分割？";

For more php+regular separation of alphanumeric and Chinese characters in a string, please pay attention to the PHP Chinese website!