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- <?php
- //
- // +----------------------------------------------------------------------+
- // | PHP version 4.0 |
- // +----------------------------------------------------------------------+
- // | Copyright (c) 1997, 1998, 1999, 2000 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@phpOpenTracker.de> |
- // +----------------------------------------------------------------------+
- //
- // $Id: Timer.php,v 1.3 2000/09/29 08:29:22 sbergmann Exp $
- //
-
- /**
- * Benchmark::Timer
- *
- * Purpose:
- *
- * Timing Script Execution, Generating Profiling Information
- *
- * Example:
- *
- * $timer = new Benchmark_Timer;
- *
- * $timer->start();
- * $timer->set_marker( "Marker 1" );
- * $timer->stop();
- *
- * $profiling = $timer->get_profiling();
- *
- * @author Sebastian Bergmann <sb@phpOpenTracker.de>
- * @version $Revision: 1.3 $
- * @access public
- */
-
- class Benchmark_Timer
- {
- // {{{ properties
-
- /**
- * Contains the markers
- *
- * @var array
- * @access public
- */
-
- var $markers = array();
-
- // }}}
- // {{{ start()
-
- /**
- * Set "Start" marker.
- *
- * @see set_marker(), stop()
- * @access public
- */
-
- function start()
- {
- $this->set_marker( "Start" );
- }
-
- // }}}
- // {{{ stop()
-
- /**
- * Set "Stop" marker.
- *
- * @see set_marker(), start()
- * @access public
- */
-
- function stop()
- {
- $this->set_marker( "Stop" );
- }
-
- // }}}
- // {{{ set_marker()
-
- /**
- * Set marker.
- *
- * @param string name of the marker to be set
- * @see start(), stop()
- * @access public
- */
-
- function set_marker( $name )
- {
- $microtime = explode( " ", microtime() );
- $this->markers[ $name ] = $microtime[ 1 ] . substr( $microtime[ 0 ], 1 );
- }
-
- // }}}
- // {{{ time_elapsed()
-
- /**
- * 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 time_elapsed( $start = "Start", $end = "Stop" )
- {
- return bcsub( $this->markers[ $end ], $this->markers[ $start ], 6 );
- }
-
- // }}}
- // {{{ get_profiling()
-
- /**
- * 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 get_profiling()
- {
- $i = 0;
- $total = 0;
- $result = array();
-
- while( list( $marker, $time ) = each( $this->markers ) )
- {
- if( $marker == "Start" )
- {
- $diff = "-";
- }
-
- else
- {
- $diff = bcsub( $time, $temp, 6 );
- $total = bcadd( $total, $diff, 6 );
- }
-
- $result[ $i ][ "name" ] = $marker;
- $result[ $i ][ "time" ] = $time;
- $result[ $i ][ "diff" ] = $diff;
- $result[ $i ][ "total" ] = $total;
-
- $temp = $time;
- $i++;
- }
-
- return $result;
- }
-
- // }}}
- }
- ?>
-