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- <?php
- //
- // +----------------------------------------------------------------------+
- // | PHP version 4.0 |
- // +----------------------------------------------------------------------+
- // | Copyright (c) 1997-2001 The PHP Group |
- // +----------------------------------------------------------------------+
- // | This source file is subject to version 2.02 of the PHP license, |
- // | that is bundled with this package in the file LICENSE, and is |
- // | available at through the world-wide-web at |
- // | http://www.php.net/license/2_02.txt. |
- // | If you did not receive a copy of the PHP license and are unable to |
- // | obtain it through the world-wide-web, please send a note to |
- // | license@php.net so we can mail you a copy immediately. |
- // +----------------------------------------------------------------------+
- // | Authors: Sebastian Bergmann <sb@sebastian-bergmann.de> |
- // +----------------------------------------------------------------------+
- //
- // $Id: Timer.php,v 1.9 2001/07/23 09:57:52 sbergmann Exp $
- //
-
- /**
- * Benchmark::Timer
- *
- * Purpose:
- *
- * Timing Script Execution, Generating Profiling Information
- *
- * Example:
- *
- * $timer = new Benchmark_Timer;
- *
- * $timer->start();
- * $timer->setMarker('Marker 1');
- * $timer->stop();
- *
- * $profiling = $timer->getProfiling();
- *
- * @author Sebastian Bergmann <sb@sebastian-bergmann.de>
- * @version $Revision: 1.9 $
- * @access public
- */
-
- class Benchmark_Timer {
- /**
- * Contains the markers
- *
- * @var array
- * @access public
- */
- var $markers = array();
-
- /**
- * Set "Start" marker.
- *
- * @see setMarker(), stop()
- * @access public
- */
- function start() {
- $this->setMarker('Start');
- }
-
- /**
- * Set "Stop" marker.
- *
- * @see setMarker(), start()
- * @access public
- */
- function stop() {
- $this->setMarker('Stop');
- }
-
- /**
- * Set marker.
- *
- * @param string name of the marker to be set
- * @see start(), stop()
- * @access public
- */
- function setMarker($name) {
- $microtime = explode(' ', microtime());
- $this->markers[$name] = $microtime[1] . substr($microtime[0], 1);
- }
-
- /**
- * Returns the time elapsed betweens two markers.
- *
- * @param string $start start marker, defaults to "Start"
- * @param string $end end marker, defaults to "Stop"
- * @return double $time_elapsed time elapsed between $start and $end
- * @access public
- */
- function timeElapsed($start = 'Start', $end = 'Stop') {
- if (extension_loaded('bcmath')) {
- return bcsub($this->markers[$end], $this->markers[$start], 6);
- } else {
- return $this->markers[$end] - $this->markers[$start];
- }
- }
-
- /**
- * Returns profiling information.
- *
- * $profiling[x]['name'] = name of marker x
- * $profiling[x]['time'] = time index of marker x
- * $profiling[x]['diff'] = execution time from marker x-1 to this marker x
- * $profiling[x]['total'] = total execution time up to marker x
- *
- * @return array $profiling
- * @access public
- */
- function getProfiling() {
- $i = 0;
- $total = 0;
- $result = array();
-
- foreach ($this->markers as $marker => $time) {
- if ($marker == 'Start') {
- $diff = '-';
- } else {
- if (extension_loaded('bcmath')) {
- $diff = bcsub($time, $temp, 6);
- $total = bcadd($total, $diff, 6);
- } else {
- $diff = $time - $temp;
- $total = $total + $diff;
- }
- }
-
- $result[$i]['name'] = $marker;
- $result[$i]['time'] = $time;
- $result[$i]['diff'] = $diff;
- $result[$i]['total'] = $total;
-
- $temp = $time;
- $i++;
- }
-
- return $result;
- }
- }
- ?>
-