What is the best way to remove elements from one array that are present in another array in PHP?

To remove elements from one array that are present in another array in PHP, you can use the array_diff() function. This function compares two arrays and returns the values from the first array that are not present in the second array. You can then assign the result back to the original array to remove the unwanted elements.

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

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

print_r($array1);