91 lines
1.8 KiB
PHP
91 lines
1.8 KiB
PHP
<?php
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/**
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* Piwik - Open source web analytics
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*
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* @link http://piwik.org
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* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
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*
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*/
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namespace Piwik;
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/**
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*
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*/
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class Timer
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{
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private $timerStart;
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private $memoryStart;
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/**
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* @return \Piwik\Timer
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*/
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public function __construct()
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{
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$this->init();
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}
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/**
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* @return void
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*/
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public function init()
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{
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$this->timerStart = $this->getMicrotime();
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$this->memoryStart = $this->getMemoryUsage();
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}
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/**
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* @param int $decimals
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* @return string
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*/
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public function getTime($decimals = 3)
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{
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return number_format($this->getMicrotime() - $this->timerStart, $decimals, '.', '');
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}
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/**
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* @param int $decimals
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* @return string
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*/
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public function getTimeMs($decimals = 3)
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{
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return number_format(1000 * ($this->getMicrotime() - $this->timerStart), $decimals, '.', '');
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}
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/**
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* @return string
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*/
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public function getMemoryLeak()
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{
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return "Memory delta: " . MetricsFormatter::getPrettySizeFromBytes($this->getMemoryUsage() - $this->memoryStart);
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}
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/**
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* @return string
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*/
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public function __toString()
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{
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return "Time elapsed: " . $this->getTime() . "s";
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}
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/**
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* @return float
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*/
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private function getMicrotime()
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{
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list($micro_seconds, $seconds) = explode(" ", microtime());
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return ((float)$micro_seconds + (float)$seconds);
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}
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/**
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* Returns current memory usage, if available
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*
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* @return int
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*/
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private function getMemoryUsage()
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{
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if (function_exists('memory_get_usage')) {
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return memory_get_usage();
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}
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return 0;
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}
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}
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