How to check if Two Arrays have Same Elements (Regardless of Order) in PHP

How to check if Two Arrays have Same Elements (Regardless of Order) in PHP ?

To check if two arrays have the same elements regardless of order in PHP, you can sort both arrays and then compare them using the == operator.

In this example,

We create two arrays named $arr1 and $arr2 with the same elements but in different order.
We sort both arrays using the sort() function.
We then compare the sorted arrays using the == operator and store the result in the variable $equal1.
Finally, we echo the value of $equal1 to the output.

<?php
$arr1 = [1, 2, 3];
$arr2 = [3, 1, 2];

sort($arr1);
sort($arr2);

$equal1 = $arr1 == $arr2;
echo $equal1 ? 'true' : 'false';
?>

true

In this example,

We create two arrays named $arr3 and $arr4 with different elements.
We sort both arrays using the sort() function.
We then compare the sorted arrays using the == operator and store the result in the variable $equal2.
Finally, we echo the value of $equal2 to the output.

<?php
$arr3 = [1, 2, 3];
$arr4 = [4, 5, 6];

sort($arr3);
sort($arr4);

$equal2 = $arr3 == $arr4;
echo $equal2 ? 'true' : 'false';
?>

false

In this tutorial, we learned How to check if Two Arrays have Same Elements (Regardless of Order) in PHP language with well detailed examples.