Online PHP editor | refs for hQPpe

<?php function xrange($start, $end, $step = 1) { while ($start <= $end) { yield $start; $start += $step; } } function reduce(Generator $iterator, Callable $callback, $initial = null) { $result = $initial; foreach($iterator as $value) { $result = $callback($result, $value); } return $result; } $start = microtime(true); reduce(xrange(1, 140000), function($r, $v) {return $r + $v;}, 0); $byGen = microtime(true) - $start; $start =microtime(true); array_reduce(range(1,140000), function($r, $v) {return $r + $v;}, 0); $byNormal = microtime(true) - $start; $percent = ($byGen - $byNormal)*100/$byNormal; printf("Generator is %s than normal function %.2f%%.\n", ($byGen > $byNormal ? 'Slower' : 'Faster'), abs($percent));