Online PHP editor | refs for KHjQ1

@ 2013-08-07T09:09:35Z

<?php
$array = array(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20);

while(count($array) > 0){
    $first = array_shift($array);
    foreach($array as $value){
        $result[] = $array[0] + $value;
    }
}