PHP: How to compare keys in one array with values in another, and return matches?

Question

I have the following two arrays:

$array_one = array(\'colorZero\'=>\'black\', \'colorOne\'=>\'red\', \'colorTwo\'=>\'green\', \'colorThree\'=>\'b         


        

Answer 1

'black', 'colorOne'=>'red', 'colorTwo'=>'green', 'colorThree'=>'blue', 'colorFour'=>'purple', 'colorFive'=>'golden');

$array_two = array('colorOne', 'colorTwo', 'colorThree');

print_r(array_intersect_key($array_one, array_flip($array_two))); 
?>