Online PHP editor | refs for cWp57

<?php $start = microtime(true); $end = mircotime(true); $assign = $end - $start; $start = microtime(true); mircotime(true); mircotime(true); $end = mircotime(true); echo "Clean call: " . $assign . "\n"; echo "3 (+ assign) microtime calls: " . ($end-$start) . "\n"; echo "2 calls cleaned: " . (($end-$start) - $assign);