PHP中的数组过滤

Question

So I have two arrays:

$one = array('red','green','blue','yellow','white');
$two = array('white','blue','red');

This being said, I need to now remove the elements from the first array that are existent in the second one. In short, the output after the sorting has to be (in this case): green, yellow.

I've looked at the array functions at PHP's documentation but was unable to find what I need. I'm sure it's something basic but I can't recall a function for that.

Answer 1

Try array_diff()

Compares array1 against one or more other arrays and returns the values in array1 that are not present in any of the other arrays.

For example...

$three = array_diff($one, $two);

Demo ~ https://eval.in/167872