Online PHP editor | refs for p7aCW

<?php $a = array(); for ($i = 0; $i < 1000; ++$i) { $v = rand(1, 1000000); $a[$v] = $v; } echo "Size: ", count($a), PHP_EOL; $start = microtime( true ); for ($i = 0; $i < 10000; ++$i) { isset($a[rand(1, 1000000)]); } $total_time = microtime( true ) - $start; echo "Total time: ", number_format($total_time, 6), PHP_EOL; $start = microtime( true ); for ($i = 0; $i < 1000; ++$i) { in_array(rand(1, 1000000), $a); } $total_time = microtime( true ) - $start; echo "Total time: ", number_format($total_time, 6), PHP_EOL;