insertion sort algorithm in php

<?php

$numbers = array(2,3,4,5,1,8,11,0);
$count = count($numbers);

for($i=1;$i=0 && $numbers[$j] >  $key){
        $numbers[$j+1] = $numbers[$j];
        $numbers[$j]= $key;
        $j= $j-1;
    }
}
print_r($numbers);


?>