In what scenarios would using array_diff be more appropriate than array_intersect when working with arrays in PHP?

array_diff is more appropriate than array_intersect when you need to find the values that are present in one array but not in another. This is useful when you want to compare two arrays and get the differences between them. On the other hand, array_intersect is used when you want to find the values that are present in both arrays.

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

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

print_r($differences);