PHP compare array

Question

Is there anyway to compare arrays in php using an inbuilt function, short of doing some sort of loop?

$a1 = array(1,2,3);
$a2 = array(1,2,3);

if (array_are_         


        

Answer 1

if(count($a1) == count($a2)){
    $result= array_intersect($a1, $a2);
    if(count($a1) == count($result))
        echo 'the same';
    else
        echo 'a1 different than a2';
} else
        echo 'a1 different than a2';