Online PHP editor | refs for 1vZJI

<?php function report($name, $time) { static $last = null; printf("%-12s: %.8fms", $name, $time); if (null !== $last) { printf(", %.1f%%", (($time - $last)/$last)*100); } echo PHP_EOL; $last = $time; } $iterations = 100000; $a = str_repeat('a', 2<<8); $times = array( "loop" => 0, "direct" => 0, "static" => 0, "object" => 0 ); class Os { public static function strcmp($a) { strcmp($a, $a); } } class Om { public function strcmp($a) { strcmp($a, $a); } } $o = new Om(); $start = microtime(true); for ($x=0; $x<$iterations; ++$x) {} $end = microtime(true) - $start; $times["loop"]+= $end; $start = microtime(true); for ($x=0; $x<$iterations; ++$x) { strcmp($a, $a); } $end = microtime(true) - $start; $times["direct"]+= $end; $start = microtime(true); for ($x=0; $x<$iterations; ++$x) { Os::strcmp($a); } $end = microtime(true) - $start; $times["static"]+= $end; $start = microtime(true); for ($x=0; $x<$iterations; ++$x) { $o->strcmp($a); } $end = microtime(true) - $start; $times["object"]+= $end; foreach ($times as $name => $time) { report($name, ($time/$iterations)*1000); }