What are some best practices for filtering elements that are present in one array but not in the other in PHP?

When working with arrays in PHP, you may encounter the need to filter out elements that are present in one array but not in another. One way to achieve this is by using the array_diff() function, which compares two arrays and returns the values that are present in the first array but not in the second. This function can help you efficiently filter out elements that do not match between arrays.

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

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

print_r($filteredArray);