Online PHP editor | refs for rPU1o

<?php class TimeWrapper { private static $now_time = 0; /** * @param bool $force_refresh 是否强制刷新 * @return int */ public static function getTime($force_refresh = false) { if ($force_refresh) { self::$now_time = time(); } else { if (!self::$now_time) { self::$now_time = time(); } } return self::$now_time; } } // Dont' abuse 3v4l $n = 5000; $start = microtime(true); for ($i = 0; $i < $n; $i++) { $t = TimeWrapper::getTime(); } $finish = microtime(true); echo "TimeWrapper: " . ($finish - $start) . PHP_EOL; $start = microtime(true); for ($i = 0; $i < $n; $i++) { $t = time(); } $finish = microtime(true); echo "time: " . ($finish - $start) . PHP_EOL;