Php+ the alphanumeric and Chinese characters in the string _ Regular expressions

For example: $str = "How does PHP divide 322 of the alphanumeric characters in the string into SF f45d and Chinese _?" "; Divide by number or letter.

Copy Code code as follows:

$str = "How does PHP divide the alphanumeric f45d and Chinese _ 322 in the string?" ";
$arr = Preg_split ("/([a-za-z0-9]+)/", $str, 0, Preg_split_no_empty | Preg_split_delim_capture);
Print_r ($arr);

Results

Copy Code code as follows:

$new = Array ();
$new [0]= "PHP";
$new [1]=] How to "string";
$new [2]= "322";
$new [3]= "alphanumeric";
$new [4]= "SF";
$new [5]= "];
$new [6]= "f45d";
$new [7]=] and Chinese _ split? ";