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- <?php
- //
- // +------------------------------------------------------------------------+
- // | PEAR :: Benchmark |
- // +------------------------------------------------------------------------+
- // | Copyright (c) 2001-2003 Sebastian Bergmann <sb@sebastian-bergmann.de>. |
- // +------------------------------------------------------------------------+
- // | This source file is subject to version 3.00 of the PHP License, |
- // | that is available at http://www.php.net/license/3_0.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. |
- // +------------------------------------------------------------------------+
- //
- // $Id: Timer.php,v 1.7 2002/12/11 17:14:17 sebastian Exp $
- //
-
- /**
- * Benchmark::Timer
- *
- * Purpose:
- *
- * Timing Script Execution, Generating Profiling Information
- *
- * Example with automatic profiling start, stop, and output:
- *
- * $timer =& new Benchmark_Timer(true);
- * $timer->setMarker('Marker 1');
- *
- * Example without automatic profiling:
- *
- * $timer =& new Benchmark_Timer();
- *
- * $timer->start();
- * $timer->setMarker('Marker 1');
- * $timer->stop();
- *
- * $profiling = $timer->getProfiling();
- * echo $profiling->getOutput(); // or $timer->display()
- *
- * Contributors:
- * - Ludovico Magnocavallo <ludo@sumatrasolutions.com>
- * auto profiling and get_output() method
- *
- * @author Sebastian Bergmann <sb@sebastian-bergmann.de>
- * @version $Revision: 1.7 $
- * @access public
- */
-
- require_once 'PEAR.php';
-
- class Benchmark_Timer extends PEAR
- {
- /**
- * Contains the markers
- *
- * @var array
- * @access private
- */
- var $markers = array();
-
- /**
- * Auto-start and stop timer
- *
- * @var boolean
- * @access private
- */
- var $auto = false;
-
- /**
- * Max marker name length for non-html output
- *
- * @var integer
- * @access private
- */
- var $strlen_max = 0;
-
- /**
- * Constructor, starts profiling recording
- *
- * @access public
- */
- function Benchmark_Timer($auto = false) {
- $this->PEAR();
- if ($auto) {
- $this->auto = $auto;
- $this->start();
- }
- }
-
- /**
- * Destructor, stops profiling recording
- *
- * @access private
- */
- function _Benchmark_Timer() {
- if ($this->auto) {
- $this->stop();
- $this->display();
- }
- }
-
- /**
- * Return formatted profiling information.
- *
- * @see getProfiling()
- * @access public
- */
- function getOutput()
- {
- if (function_exists('version_compare') &&
- version_compare(phpversion(), '4.1', 'ge'))
- {
- $http = isset($_SERVER['SERVER_PROTOCOL']);
- } else {
- global $HTTP_SERVER_VARS;
- $http = isset($HTTP_SERVER_VARS['SERVER_PROTOCOL']);
- }
- $total = $this->TimeElapsed();
- $result = $this->getProfiling();
- $dashes = "";
- if ($http) {
- $out = "<table border=1>\n";
- $out .= '<tr><td> </td><td align="center"><b>time index</b></td><td align="center"><b>ex time</b></td><td align="center"><b>%</b></td></tr>'."\n";
- } else {
- $dashes = $out = str_pad("\n", ($this->strlen_max + 52), '-', STR_PAD_LEFT);
- $out .= str_pad('marker', $this->strlen_max);
- $out .= str_pad("time index", 22);
- $out .= str_pad("ex time", 22);
- $out .= "perct\n";
- $out .= $dashes;
- }
- foreach ($result as $k => $v) {
- $perc = (($v['diff'] * 100) / $total);
- if ($http) {
- $out .= "<tr><td><b>" . $v['name'] . "</b></td><td>" . $v['time'] . "</td><td>" . $v['diff'] . "</td><td align=\"right\">" . number_format($perc, 2, '.', '') . "%</td></tr>\n";
- } else {
- $out .= str_pad($v['name'], $this->strlen_max, ' ');
- $out .= str_pad($v['time'], 22);
- $out .= str_pad($v['diff'], 22);
- $out .= str_pad(number_format($perc, 2, '.', '') . "%\n", 8, ' ', STR_PAD_LEFT);
- }
- $out .= $dashes;
- }
- if ($http) {
- $out .= "<tr style='background: silver;'><td><b>total</b></td><td>-</td><td>${total}</td><td>100.00%</td></tr>\n";
- $out .= "</table>\n";
- } else {
- $out .= str_pad('total', $this->strlen_max);
- $out .= str_pad('-', 22);
- $out .= str_pad($total, 22);
- $out .= "100.00%\n";
- $out .= $dashes;
- }
- return $out;
- }
-
- /**
- * Prints the information returned by getOutput
- */
- function display()
- {
- print $this->getOutput();
- }
-
- /**
- * 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 = $total = $temp = 0;
- $result = array();
-
- foreach ($this->markers as $marker => $time) {
- 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;
-
- $this->strlen_max = (strlen($marker) > $this->strlen_max ? strlen($marker) + 1 : $this->strlen_max);
-
- $temp = $time;
- $i++;
- }
- $result[0]['diff'] = '-';
- $this->strlen_max = (strlen('total') > $this->strlen_max ? strlen('total') : $this->strlen_max);
- $this->strlen_max += 4;
- return $result;
- }
- }
- ?>
-