modules/Timer.php


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<?php
/**
 * Piwik - Open source web analytics
 * 
 * @link http://piwik.org
 * @license http://www.gnu.org/licenses/gpl-3.0.html Gpl v3 or later
 * @version $Id$
 * 
 * @package Piwik_Helper
 */

/**
 * 
 * @package Piwik_Helper
 */
class Piwik_Timer
{
	private $m_Start;

	public function __construct()
	{
		$this->m_Start = 0.0;
		$this->init();
	}

	private function getMicrotime()
	{
		list($micro_seconds, $seconds) = explode(" ", microtime());
		return ((float)$micro_seconds + (float)$seconds);
	}

	public function init()
	{
		$this->m_Start = $this->getMicrotime();
	}

	public function getTime($decimals = 2)
	{
		return number_format($this->getMicrotime() - $this->m_Start, $decimals, '.', '');
	}
	public function getTimeMs($decimals = 2)
	{
		return number_format(1000*($this->getMicrotime() - $this->m_Start), $decimals, '.', '');
	}

	public function __toString()
	{
		return "Time elapsed: ". $this->getTime() ."s";
	}
}