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<?php |
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// |
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// +----------------------------------------------------------------------+ |
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// | PHP version 4.0 | |
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// +----------------------------------------------------------------------+ |
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// | Copyright (c) 1997-2001 The PHP Group | |
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// +----------------------------------------------------------------------+ |
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// | This source file is subject to version 2.02 of the PHP license, | |
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// | that is bundled with this package in the file LICENSE, and is | |
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// | available at through the world-wide-web at | |
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// | http://www.php.net/license/2_02.txt. | |
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// | If you did not receive a copy of the PHP license and are unable to | |
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// | obtain it through the world-wide-web, please send a note to | |
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// | license@php.net so we can mail you a copy immediately. | |
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// +----------------------------------------------------------------------+ |
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// | Authors: Sebastian Bergmann <sb@sebastian-bergmann.de> | |
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// +----------------------------------------------------------------------+ |
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// |
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// $Id: Timer.php,v 1.8 2001/03/03 06:35:25 sbergmann Exp $ |
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// |
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|
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/** |
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* Benchmark::Timer |
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* |
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* Purpose: |
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* |
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* Timing Script Execution, Generating Profiling Information |
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* |
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* Example: |
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* |
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* $timer = new Benchmark_Timer; |
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* |
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* $timer->start(); |
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* $timer->setMarker('Marker 1'); |
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* $timer->stop(); |
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* |
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* $profiling = $timer->getProfiling(); |
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* |
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* @author Sebastian Bergmann <sb@sebastian-bergmann.de> |
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* @version $Revision: 1.8 $ |
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* @access public |
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*/ |
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class Benchmark_Timer |
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{ |
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/** |
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* Contains the markers |
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* |
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* @var array |
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* @access public |
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*/ |
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var $markers = array(); |
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|
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/** |
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* Set "Start" marker. |
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* |
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* @see setMarker(), stop() |
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* @access public |
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*/ |
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function start() |
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{ |
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$this->setMarker('Start'); |
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} |
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|
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/** |
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* Set "Stop" marker. |
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* |
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* @see setMarker(), start() |
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* @access public |
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*/ |
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function stop() |
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{ |
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$this->setMarker('Stop'); |
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} |
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|
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/** |
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* Set marker. |
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* |
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* @param string name of the marker to be set |
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* @see start(), stop() |
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* @access public |
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*/ |
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function setMarker($name) |
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{ |
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$microtime = explode(' ', microtime()); |
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$this->markers[$name] = $microtime[1] . substr($microtime[0], 1); |
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} |
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|
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/** |
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* Returns the time elapsed betweens two markers. |
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* |
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* @param string $start start marker, defaults to "Start" |
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* @param string $end end marker, defaults to "Stop" |
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* @return double $time_elapsed time elapsed between $start and $end |
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* @access public |
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*/ |
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function timeElapsed($start = 'Start', $end = 'Stop') |
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{ |
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if (extension_loaded('bcmath')) { |
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return bcsub($this->markers[$end], $this->markers[$start], 6); |
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} else { |
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return $this->markers[$end] - $this->markers[$start]; |
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} |
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} |
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|
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/** |
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* Returns profiling information. |
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* |
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* $profiling[x]['name'] = name of marker x |
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* $profiling[x]['time'] = time index of marker x |
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* $profiling[x]['diff'] = execution time from marker x-1 to this marker x |
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* $profiling[x]['total'] = total execution time up to marker x |
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* |
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* @return array $profiling |
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* @access public |
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*/ |
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function getProfiling() |
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{ |
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$i = 0; |
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$total = 0; |
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$result = array(); |
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|
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foreach ($this->markers as $marker => $time) { |
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if ($marker == 'Start') { |
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$diff = '-'; |
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} else { |
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if (extension_loaded('bcmath')) { |
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$diff = bcsub($time, $temp, 6); |
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$total = bcadd($total, $diff, 6); |
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} else { |
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$diff = $time - $temp; |
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$total = $total + $diff; |
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} |
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} |
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|
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$result[$i]['name'] = $marker; |
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$result[$i]['time'] = $time; |
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$result[$i]['diff'] = $diff; |
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$result[$i]['total'] = $total; |
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|
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$temp = $time; |
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$i++; |
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} |
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|
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return $result; |
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} |
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} |
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?> |
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