149 lines
4.3 KiB
PHP
149 lines
4.3 KiB
PHP
<?php
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/**
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* PHP_Timer
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*
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* Copyright (c) 2010-2013, Sebastian Bergmann <sebastian@phpunit.de>.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* * Neither the name of Sebastian Bergmann nor the names of his
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* @package PHP
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* @subpackage Timer
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* @author Sebastian Bergmann <sebastian@phpunit.de>
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* @copyright 2010-2013 Sebastian Bergmann <sebastian@phpunit.de>
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* @license http://www.opensource.org/licenses/BSD-3-Clause The BSD 3-Clause License
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* @link http://github.com/sebastianbergmann/php-timer
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* @since File available since Release 1.0.0
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*/
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/**
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* Utility class for timing.
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*
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* @package PHP
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* @subpackage Timer
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* @author Sebastian Bergmann <sebastian@phpunit.de>
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* @copyright 2010-2013 Sebastian Bergmann <sebastian@phpunit.de>
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* @license http://www.opensource.org/licenses/BSD-3-Clause The BSD 3-Clause License
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* @version Release: @package_version@
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* @link http://github.com/sebastianbergmann/php-timer
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* @since Class available since Release 1.0.0
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*/
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class PHP_Timer
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{
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/**
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* @var array
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*/
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private static $times = array(
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'hour' => 3600000,
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'minute' => 60000,
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'second' => 1000
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);
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/**
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* @var array
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*/
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private static $startTimes = array();
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/**
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* @var float
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*/
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public static $requestTime;
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/**
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* Starts the timer.
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*/
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public static function start()
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{
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array_push(self::$startTimes, microtime(TRUE));
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}
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/**
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* Stops the timer and returns the elapsed time.
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*
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* @return float
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*/
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public static function stop()
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{
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return microtime(TRUE) - array_pop(self::$startTimes);
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}
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/**
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* Formats the elapsed time as a string.
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*
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* @param float $time
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* @return string
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*/
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public static function secondsToTimeString($time)
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{
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$ms = round($time * 1000);
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foreach (self::$times as $unit => $value) {
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if ($ms >= $value) {
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$time = floor($ms / $value * 100.0) / 100.0;
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return $time . ' ' . ($time == 1 ? $unit : $unit . 's');
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}
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}
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return $ms . ' ms';
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}
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/**
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* Formats the elapsed time since the start of the request as a string.
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*
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* @return string
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*/
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public static function timeSinceStartOfRequest()
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{
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return self::secondsToTimeString(microtime(TRUE) - self::$requestTime);
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}
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/**
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* Returns the resources (time, memory) of the request as a string.
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*
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* @return string
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*/
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public static function resourceUsage()
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{
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return sprintf(
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'Time: %s, Memory: %4.2fMb',
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self::timeSinceStartOfRequest(),
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memory_get_peak_usage(TRUE) / 1048576
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);
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}
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}
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if (isset($_SERVER['REQUEST_TIME_FLOAT'])) {
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PHP_Timer::$requestTime = $_SERVER['REQUEST_TIME_FLOAT'];
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}
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else {
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PHP_Timer::$requestTime = microtime(TRUE);
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}
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