One-step operation of PHP's list to assign values ​​to a set of variables

For example:
list($a,$b) = explode(" ",microtime());
echo $a.'------'.$b;
?>
Result: 0.60937700－－－－－1305625768

The above introduces the one-step operation of PHP's list to assign values ​​to a group of variables, including the content. I hope it will be helpful to friends who are interested in PHP tutorials.