Check if two arrays have the same values

Question

[2,5,3]    

[5,2,3]

They are equal because they have the same values, but not in the same order. Can I find out that without using a foreach loop

Answer 1

If you don't want to sort arrays but just want to check equality regardless of value order use http://php.net/manual/en/function.array-intersect.php like so:

$array1 = array(2,5,3);
$array2 = array(5,2,3);
if($array1 === array_intersect($array1, $array2) && $array2 === array_intersect($array2, $array1)) {
    echo 'Equal';
} else {
    echo 'Not equal';
}

Answer 2

Say, if you have two arrays defined like this:

$array1 = array(2,5,3);
$array2 = array(5,2,3);

Then you can use this piece of code to judge whether they equal:

if(array_diff($array1,$array2) === array_diff($array2,$array1) &&count($array1)==count($array2))
{
    echo 'Equal';
}
else
{
    echo 'Not equal';
}

Answer 3

sort($a);
sort($b);
if ($a==$b) {//equal}