Online PHP editor | refs for Dlmos

<?php $arr = array( 'a'=>'b', 'b'=>'c', 'c'=>'d', 'd'=>'e', 'e'=>'f', 'f'=>'g' ); $s = microtime(true); for ($i = 0; $i < 100000; $i++) { sizeOf($arr); } print microtime(true) - $s . PHP_EOL; $s = microtime(true); for ($i = 0; $i < 100000; $i++) { count($arr); } print microtime(true) - $s;