. |
// +------------------------------------------------------------------------+
// | 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: Iterate.php,v 1.6 2003/01/01 17:57:52 sterling Exp $
//
require_once 'Benchmark/Timer.php';
/**
* Benchmark::Benchmark_Iterate
*
* Purpose:
*
* Benchmarking
*
* Example:
* a)
* require_once 'Benchmark/Iterate.php';
* $benchmark = new Benchmark_Iterate;
*
* function foo($string) {
* print $string . '
';
* }
*
* $benchmark->run(100, 'foo', 'test');
* $result = $benchmark->get();
*
* b)
* require_once 'Benchmark/Iterate.php';
* $benchmark = new Benchmark_Iterate;
*
* class myclass{
*
* function foo($string) {
* print $string . '
';
* }
* }
*
* $benchmark->run(100, 'myclass::foo', 'test');
* $result = $benchmark->get();
*
* c)
* require_once 'Benchmark/Iterate.php';
* $benchmark = new Benchmark_Iterate;
*
* class myclass{
*
* function foo($string) {
* print $string . '
';
* }
* }
*
* $myobj = new myclass();
*
* $benchmark->run(100, 'myobj->foo', 'test');
* $result = $benchmark->get();
*
* @author Sebastian Bergmann
* @version $Revision: 1.6 $
* @access public
*/
class Benchmark_Iterate extends Benchmark_Timer {
/**
* Benchmarks a function.
*
* @access public
*/
function run() {
$arguments = func_get_args();
$iterations = array_shift($arguments);
$function_name = array_shift($arguments);
if (strstr($function_name, '::')) {
$function_name = explode('::', $function_name);
$objectmethod = $function_name[1];
}
// If we're calling a method on an object use call_user_func
if (strstr($function_name, '->')) {
$function_name = explode('->', $function_name);
$objectname = $function_name[0];
global ${$objectname};
$objectmethod = $function_name[1];
for ($i = 1; $i <= $iterations; $i++) {
$this->setMarker('start_' . $i);
call_user_func_array(array(${$objectname}, $function_name[1]), $arguments);
$this->setMarker('end_' . $i);
}
return(0);
}
for ($i = 1; $i <= $iterations; $i++) {
$this->setMarker('start_' . $i);
call_user_func_array($function_name, $arguments);
$this->setMarker('end_' . $i);
}
}
/**
* Returns benchmark result.
*
* $result[x ] = execution time of iteration x
* $result['mean' ] = mean execution time
* $result['iterations'] = number of iterations
*
* @return array $result
* @access public
*/
function get() {
$result = array();
$total = 0;
$iterations = count($this->markers)/2;
for ($i = 1; $i <= $iterations; $i++) {
$time = $this->timeElapsed('start_'.$i , 'end_'.$i);
if (extension_loaded('bcmath')) {
$total = bcadd($total, $time, 6);
} else {
$total = $total + $time;
}
$result[$i] = $time;
}
if (extension_loaded('bcmath')) {
$result['mean'] = bcdiv($total, $iterations, 6);
} else {
$result['mean'] = $total / $iterations;
}
$result['iterations'] = $iterations;
return $result;
}
}
?>