从另一个数组中减去一个数组

Question

Well, I have

$a2 = array('a'=>'Apple','b'=>'bat','c'=>'Cat','d'=>'Dog','e'=>'Eagle','f'=>'Fox','g'=>'God');
$a3 = array('b','e');

I want to substract $a3 from $a2 to get:

$aNew = array('a'=>'Apple','c'=>'Cat','d'=>'Dog','f'=>'Fox','g'=>'God');

Any help?

Answer 1

foreach($a3 as $value){

   if(isset($a2[$value]))
         unset($a2[$value]);
}