How can the array_diff function simplify the process of finding differences between two arrays in PHP?

When comparing two arrays in PHP, it can be cumbersome to manually loop through each element and check for differences. The array_diff function simplifies this process by directly comparing two arrays and returning the differences. This function returns an array containing all the values from the first array that are not present in the second array.

$array1 = [1, 2, 3, 4, 5];
$array2 = [3, 4, 5, 6, 7];

$diff = array_diff($array1, $array2);

print_r($diff);