Online PHP editor | refs for GARZb

<?php $arr = array(); $fp = fopen("/usr/share/dict/words", "r"); while ($i < 5000 && ($w = fgets($fp))) { $arr[trim($w)] = ++$i; } $s = microtime(1); for ($i = 0; $i < 100000; $i++) { isset($arr['abracadabra']); } $e = microtime(1); echo "Isset: ".($e - $s)."\n"; $s = microtime(1); for ($i = 0; $i < 100000; $i++) { array_key_exists('abracadabra', $arr); }