Online PHP editor | refs for 9j6Up

<?php // For with brackets $results = []; $aHash = []; $i = 0; $tmp = ''; while ($i < 10000) { $tmp .= 'a'; ++$i; } $aHash = array_fill(100000000000000000000000, 100, $tmp); unset($i, $tmp); $t = microtime(true); $key = array_keys($aHash); $size = count($key); for ($i = 0; $i < $size; $i++) { $aHash[$key[$i]] .= "a"; } echo (microtime(true) - $t) * 1000000;