82 lines
1.9 KiB
PHP
82 lines
1.9 KiB
PHP
<?php
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/*
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* This file is part of phpunit/php-timer.
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*
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* (c) Sebastian Bergmann <sebastian@phpunit.de>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace SebastianBergmann\Timer;
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final class 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 = [
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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 $startTimes = [];
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public static function start(): void
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{
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self::$startTimes[] = \microtime(true);
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}
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public static function stop(): float
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{
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return \microtime(true) - \array_pop(self::$startTimes);
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}
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public static function secondsToTimeString(float $time): string
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{
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$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 $ms . ' ms';
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}
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/**
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* @throws RuntimeException
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*/
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public static function timeSinceStartOfRequest(): string
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{
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if (isset($_SERVER['REQUEST_TIME_FLOAT'])) {
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$startOfRequest = $_SERVER['REQUEST_TIME_FLOAT'];
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} elseif (isset($_SERVER['REQUEST_TIME'])) {
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$startOfRequest = $_SERVER['REQUEST_TIME'];
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} else {
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throw new RuntimeException('Cannot determine time at which the request started');
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}
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return self::secondsToTimeString(\microtime(true) - $startOfRequest);
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}
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/**
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* @throws RuntimeException
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*/
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public static function resourceUsage(): string
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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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