Summary of Several Methods to Calculate Page Loading Time in PHP

Home

Backend Development

PHP Tutorial

Summary of Several Methods to Calculate Page Loading Time in PHP_PHP Tutorial

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB

Jul 13, 2016 pm 05:14 PM

php several kinds load Can and start Summarize method time use Obtain calculate page

You can usually use microtime() to get the time at the beginning and end of the page and subtract them. The calculation result is that the page is running The period of time that has elapsed, but this is not necessarily the time that the page itself has been running

The code is as follows

Copy code

代码如下

复制代码

//实例：计算页面运行时加载时间
//分析：页面打开时获取一个时间，加载完成时获取一个时间，运行时间即二者之差

//1.自定义函数
function fn(){
list($a,$b) = explode(' ',microtime()); //获取并分割当前时间戳和微妙数，赋值给变量
return $a+$b;
}

//2.获取开始时间
$start_time = fn();
//5.加载过程
for($i=0;$i<10000000;$i++){
// do nothing;
}

//3.获取结束时间
$end_time = fn();

//4.计算差值
echo $end_time-$start_time;

//5.格式化输出
echo '
';
$t = $end_time-$start_time;
echo round($t,2);

//Example: Calculate the loading time of the page when it is running
//Analysis: Get a time when the page is opened, get a time when loading is completed, and the running time is the difference between the two

//1. Custom function

function fn(){
list($a,$b) = explode(' ',microtime()); //Get and split the current timestamp and microtime number, and assign them to variables

return $a+$b;

}

代码如下

复制代码

class Timer {
private $StartTime = 0;//程序运行开始时间
private $StopTime = 0;//程序运行结束时间
private $TimeSpent = 0;//程序运行花费时间
function start(){//程序运行开始
$this->StartTime = microtime();
    }
    function stop(){//程序运行结束
        $this->StopTime = microtime();
    }
    function spent(){//程序运行花费的时间
        if ($this->TimeSpent) {
            return $this->TimeSpent;
        } else {
         list($StartMicro, $StartSecond) = explode(" ", $this->StartTime);
         list($StopMicro, $StopSecond) = explode(" ", $this->StopTime);
            $start = doubleval($StartMicro) + $StartSecond;
            $stop = doubleval($StopMicro) + $StopSecond;
            $this->TimeSpent = $stop - $start;
            return substr($this->TimeSpent,0,8)."秒";//返回获取到的程序运行时间差
        }
    }
}
$timer = new Timer();
$timer->start();
//...程序运行的代码
$timer->stop();
echo "程序运行时间为:".$timer->spent();

//2. Get the start time $start_time = fn(); //5.Loading process for($i=0;$i<10000000;$i++){<🎜> // do nothing;<🎜> }<🎜> <🎜>//3. Get the end time<🎜> $end_time = fn();<🎜> <🎜>//4. Calculate the difference<🎜> echo $end_time-$start_time;<🎜> <🎜>//5. Formatted output<🎜> echo '
'; $t = $end_time-$start_time; echo round($t,2); ?> If you use microtime() to get the start and end times of the page and subtract them, the calculation result is that the page is running The period of time that elapses, but this is not necessarily the time that the page itself was running. Because there may be multiple PHP scripts This page is jointly executed, so I think that method is inaccurate Below I found an example from the Internet about calculating the running time of a page program in PHP. Friends in need can refer to it. I recently wrote a program running time calculation class for your reference:

The code is as follows

Copy code

class Timer { Private $StartTime = 0;//Program running start time Private $StopTime = 0;//End time of program execution Private $TimeSpent = 0;//It takes time for the program to run Function start(){//The program starts $this->StartTime = microtime(); } Function stop(){//The program ends $this->StopTime = microtime(); } Function spent(){//The time it takes for the program to run If ($this->TimeSpent) { Return $this->TimeSpent; } else { list($StartMicro, $StartSecond) = explode(" ", $this->StartTime); list($StopMicro, $StopSecond) = explode(" ", $this->StopTime); $start = doubleval($StartMicro) + $StartSecond; $stop = doubleval($StopMicro) + $StopSecond; $this->TimeSpent = $stop - $start; return substr($this->TimeSpent,0,8)."seconds";//Return the obtained program running time difference } } $timer = new Timer(); $timer->start(); //...The code that the program runs $timer->stop(); echo "The program running time is:".$timer->spent();

Look at the simplified program again to calculate page loading time

The code is as follows

代码如下

复制代码

class runtime
{
var $StartTime = 0;
var $StopTime = 0;
function get_microtime()
{
list($usec, $sec) = explode(' ', microtime());
return ((float)$usec (float)$sec);
}

function start()
{
$this->StartTime = $this->get_microtime();
        }

        function stop()
        {
                $this->StopTime = $this->get_microtime();
        }

        function spent()
        {
                return round(($this->StopTime - $this->StartTime) * 1000, 1);
        }
}

//实例开始
$runtime= new runtime;
$runtime->start();
//你的代码开始
$a = 0;
for($i=0; $i<1000000; $i )
{
$a = $i;
}
//你的代码结束
$runtime->stop();
echo "页面执行时间: ".$runtime->spent()." 毫秒";
?>

Copy code

class runtime
{
          var $StartTime = 0;
          var $StopTime = 0;
         function get_microtime()
                                     {
                list($usec, $sec) = explode(' ', microtime());
Return ((float)$usec (float)$sec);
         }

         function start()
                                     {
$this->StartTime = $this->get_microtime();
         }

         function stop()
                                     {
$this->StopTime = $this->get_microtime();
         }

         function spent()
                                  {
                    return round(($this->StopTime - $this->StartTime) * 1000, 1);
         }
}

//Instance start
$runtime= new runtime;
$runtime->start();
//Start of your code
$a = 0;
for($i=0; $i<1000000; $i )
{
$a = $i;
}
//End of your code
$runtime->stop();
echo "Page execution time: ".$runtime->spent()." milliseconds";
?>

true

http: //www.bkjia.com/PHPjc/629064.html

TechArticleYou can usually use microtime() to get the time at the beginning and end of the page and subtract them, the calculation result is The period of time the page takes to run, but this is not necessarily the page itself...

Statement of this Website

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress images for free

Clothoff.io

AI clothes remover

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Assassin's Creed Shadows: Seashell Riddle Solution

4 weeks ago By DDD

What's New in Windows 11 KB5054979 & How to Fix Update Issues

3 weeks ago By DDD

Where to find the Crane Control Keycard in Atomfall

4 weeks ago By DDD

Roblox: Dead Rails - How To Complete Every Challenge

1 months ago By DDD

Atomfall guide: item locations, quest guides, and tips

1 months ago By DDD

Hot Tools

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Hot Topics

Where is the login entrance for gmail email?

7706

Java Tutorial

1640

CakePHP Tutorial

1394

Laravel Tutorial

1288

PHP Tutorial

1231

Related knowledge

PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian Dec 24, 2024 pm 04:42 PM

PHP 8.4 brings several new features, security improvements, and performance improvements with healthy amounts of feature deprecations and removals. This guide explains how to install PHP 8.4 or upgrade to PHP 8.4 on Ubuntu, Debian, or their derivati

7 PHP Functions I Regret I Didn't Know Before Nov 13, 2024 am 09:42 AM

If you are an experienced PHP developer, you might have the feeling that you’ve been there and done that already.You have developed a significant number of applications, debugged millions of lines of code, and tweaked a bunch of scripts to achieve op

How To Set Up Visual Studio Code (VS Code) for PHP Development Dec 20, 2024 am 11:31 AM

Visual Studio Code, also known as VS Code, is a free source code editor — or integrated development environment (IDE) — available for all major operating systems. With a large collection of extensions for many programming languages, VS Code can be c

Explain JSON Web Tokens (JWT) and their use case in PHP APIs. Apr 05, 2025 am 12:04 AM

JWT is an open standard based on JSON, used to securely transmit information between parties, mainly for identity authentication and information exchange. 1. JWT consists of three parts: Header, Payload and Signature. 2. The working principle of JWT includes three steps: generating JWT, verifying JWT and parsing Payload. 3. When using JWT for authentication in PHP, JWT can be generated and verified, and user role and permission information can be included in advanced usage. 4. Common errors include signature verification failure, token expiration, and payload oversized. Debugging skills include using debugging tools and logging. 5. Performance optimization and best practices include using appropriate signature algorithms, setting validity periods reasonably,

PHP Program to Count Vowels in a String Feb 07, 2025 pm 12:12 PM

A string is a sequence of characters, including letters, numbers, and symbols. This tutorial will learn how to calculate the number of vowels in a given string in PHP using different methods. The vowels in English are a, e, i, o, u, and they can be uppercase or lowercase. What is a vowel? Vowels are alphabetic characters that represent a specific pronunciation. There are five vowels in English, including uppercase and lowercase: a, e, i, o, u Example 1 Input: String = "Tutorialspoint" Output: 6 explain The vowels in the string "Tutorialspoint" are u, o, i, a, o, i. There are 6 yuan in total

How do you parse and process HTML/XML in PHP? Feb 07, 2025 am 11:57 AM

This tutorial demonstrates how to efficiently process XML documents using PHP. XML (eXtensible Markup Language) is a versatile text-based markup language designed for both human readability and machine parsing. It's commonly used for data storage an

Explain late static binding in PHP (static::). Apr 03, 2025 am 12:04 AM

Static binding (static::) implements late static binding (LSB) in PHP, allowing calling classes to be referenced in static contexts rather than defining classes. 1) The parsing process is performed at runtime, 2) Look up the call class in the inheritance relationship, 3) It may bring performance overhead.

What are PHP magic methods (__construct, __destruct, __call, __get, __set, etc.) and provide use cases? Apr 03, 2025 am 12:03 AM

What are the magic methods of PHP? PHP's magic methods include: 1.\_\_construct, used to initialize objects; 2.\_\_destruct, used to clean up resources; 3.\_\_call, handle non-existent method calls; 4.\_\_get, implement dynamic attribute access; 5.\_\_set, implement dynamic attribute settings. These methods are automatically called in certain situations, improving code flexibility and efficiency.

See all articles