Online PHP editor | refs for SO78e

@ 2013-05-05T05:59:43Z

<?php

$input = ["a", "b"];

function search($input)
{
    $result = $input;
	foreach($input as $a)
    {
		foreach($input as $b)
        {
            $result []= $a + $b;
        }
    }

    //return array_unique($result);
    return $result;
}

var_dump(search($input));