devide a string according to spaces in php code example

Example 1: php split string along spaces

// Example 1
$pizza  = "piece1 piece2 piece3 piece4 piece5 piece6";
$pieces = explode(" ", $pizza);
echo $pieces[0]; // piece1
echo $pieces[1]; // piece2

Example 2: how to split sting in php

<?php
list($user, $pass, $uid, $gid, $extra) =
    split(":", $passwd_line, 5);
?>