PHP Implementation Timer page running time monitoring class

This article describes the PHP implementation of timer page running time monitoring class and its usage, is a very practical PHP class file. Share to everyone for your reference. The specific analysis is as follows:

The PHP timer page runs the time monitoring class, can monitor different running time according to different key.

The Timer.class.php class files are as follows:

<?php

/** Timer class, calculates the page run time, can calculate different running time according to different key

* date:2014-02-28

* Author:fdipzone

* ver:1.0

*

* Func:

* Public start record Starting time

* Public ending record end time

* Public GetTime calculation run time

* Pulbic Printtime Output run time

* Private Getkey Get key

* Private Getmicrotime Get Microtime

*/

Class timer{//Class start

Private $_start = Array ();

Private $_end = Array ();

Private $_default_key = ' Timer ';

Private $_prefix = ' timer_ ';

/** Record start time

* @param String $key Tag

*/

Public Function Start ($key = ') {

$flag = $this->getkey ($key);

$this->_start[$flag] = $this->getmicrotime ();

}

/** Record End time

* @param String $key Tag

*/

Public Function End ($key = ' ") {

$flag = $this->getkey ($key);

$this->_end[$flag] = $this->getmicrotime ();

}

/** Calculation Run time

* @param String $key Tag

* @return Float

*/

Public Function getTime ($key = ' ") {

$flag = $this->getkey ($key);

if (Isset ($this->_end[$flag]) && isset ($this->_start[$flag])) {

return (float) ($this->_end[$flag]-$this->_start[$flag]);

}else{

return 0;

}

}

/** Output page Run time

* @param String $key Tag

* @return String

*/

Public Function printtime ($key = ' ") {

printf ("%srun time%f msrn", $key = = '? $key: $key. ' ', $this->gettime ($key) *1000);

}

/** Get key

* @param String $key Tag

* @return String

*/

Private Function Getkey ($key = ' ") {

if ($key = = ") {

return $this->_default_key;

}else{

Return $this->_prefix. $key;

}

}

/** Get Microtime

*/

Private Function Getmicrotime () {

List ($usec, $sec) = Explode (', microtime ());

return (float) $usec + (float) $sec;

}

}//Class end

?>

Demo sample code is as follows:

<?php

Require ' Timer.class.php ';

$timer = new timer ();

$timer->start ();

$timer->start (' program1 ');

Usleep (Mt_rand (100000,500000));

$timer->end (' program1 ');

$timer->printtime (' program1 ');

$timer->start (' program2 ');

Usleep (Mt_rand (100000,500000));

$timer->end (' program2 ');

$timer->printtime (' program2 ');

$timer->end ();

$timer->printtime ();

?>

Demo Run output:

Program1 Run time 163.285971 ms

Program2 Run time 100.347042 ms

Run time 264.035940 ms

I hope this article will help you with your PHP program design.