Online PHP editor | refs for CrE1N

<?php $rounds = 10000000; $voll = "inhalt"; $leer = ""; //$unset $start = microtime(true); for ($i = 0; $i < $rounds; ++$i) { empty($voll); empty($leer); } echo "Took me ".(microtime(true) - $start). "seconds"; $start = microtime(true); for ($i = 0; $i < $rounds; ++$i) { $voll == ""; $leer == ""; } echo "Took me ".(microtime(true) - $start). "seconds";