Write a PHP program to create new array from a given array of integers shifting all even numbers before all odd numbers

<?php
function test($numbers)
    { 
        $index = 0;
        for ($i = 0; $i < sizeof($numbers); $i++)
            {
                if ($numbers[$i] % 2 == 0)
                {
                    $temp = $numbers[$index];
                    $numbers[$index] = $numbers[$i];
                    $numbers[$i] = $temp;
                    $index++;
                }
            }
            return $numbers;
    }  
    
$result = test([1, 2, 5, 3, 5, 4, 6, 9, 11] );
echo "New array: " . implode(',', $result);