How to compare two arrays and remove matching elements from one for the next loop?

Question

How else might you compare two arrays ($A and $B )and reduce matching elements out of the first to prep for the next loop over the array $A?

$A = array(1,2,3         


        

Answer 1

You've got it. Just use array_diff or array_intersect. Doesn't get much easier than that.

Edit: For example:

$arr_1 = array_diff($arr_1, $arr_2);
$arr_2 = array_diff($arr_2, $arr_1);

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