note 30788 deleted from function.count by didou

Note Submitter: joshua dot patterson a+ plexus dot com ---- (tested on both PHP 4.0.6, and 4.1.1) Count appears to be an Order N operation on an array of size N. This is problematic if you have it inside a for loop like this: for ($i=0;$i<count($array);$i++) { Some Code } Where $array is large >~4 or 500. Each iteration of the loop It appears to itterate through the entire array to figure out its size. The solution is to do count once before the for loop instead of inside it each time. $tCount = count($array); for ($i=0;$i<$tCount;$i++) { Some Code if ($someVar==4) { array_splice($array,$i,1); $tCount--; } } If the size of your array changes inside the for loop, just change the $tCount variable whenever you increment or decrement the size of the array. Josh PS this "features" of php's count can be responsible for as much as a 100x reduction in speed.