problem with function array_* that preserved the key

Hi, I have problem with array function that return an array and preserved the key of the array argument. Take example of array_diff: I have 2 arrays that has index 0,1,2, ... as the key, and use it as the argument, say $arrA, and $arrB, $arrC = array_diff($arrA, $arrB); since the key are preserved, arrC is no longer indexed from 0. Well, in most cases I don't care about the key if it's just indexed array. But since the key I preserved, I can no longer do for($i=0; $i<count($arrC);$i++) echo $arrC[$i]; if it happens that the returned indedex in array C 19, 20,25, for example. Any workaround? Thanks. Reuben D. Budiardja