Home Backend Development PHP Tutorial 或者用到的php代码

或者用到的php代码

Jun 13, 2016 pm 01:25 PM
content extend file php type

可能用到的php代码

1.延迟请求文件,模拟网速不好的时候的场景,代码地址如下:

https://gist.github.com/2650596

?

<?php

/**
*
* delay.php?f=file.js&t=100
*
* 延时100毫秒加载file.js
*
* */

//得到扩展名
function get_extend($file_name) {
$extend =explode("." , $file_name);
$va=count($extend)-1;
return $extend[$va];
}
 
/**
* begin
*/
//cdn上存在的各种可能的文件类型
$header = array(
    'js' => 'Content-Type: application/x-javascript',
    'css' => 'Content-Type: text/css',
    'jpg' => 'Content-Type: image/jpg',
    'gif' => 'Content-Type: image/gif',
    'png' => 'Content-Type: image/png',
    'jpeg' => 'Content-Type: image/jpeg',
    'swf' => 'Content-Type: application/x-shockwave-flash'
);


$filename = $_GET['f'];
$R_files = file($_GET['f']);

if(empty($type)) {
$type = get_extend($filename);
}

header($header[$type]);

ob_flush();
flush();
sleep($_GET['t']);

//var_dump($R_files);

echo join("\n",$R_files);

?>
Copy after login

?适用方式:

把代码用php文件放到项目目录下,引用目标文件的时候,方式如下:

http://cdn/你的目录/delay.php?f=yourfile.js&t=100
Copy after login

?2.页面逻辑暂停,过一段时间再继续

ob_flush();
flush();
sleep($_GET['t']);
Copy after login

?sleep为php的内置函数,参数为时间,单位秒;要放到PHP后缀的文件下使用,或者要配置下在js文件下使用,或者js后缀的后面加上.php,如 xxx.js.php

?

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

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. How to Fix Audio if You Can't Hear Anyone
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
WWE 2K25: How To Unlock Everything In MyRise
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian 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

CakePHP Working with Database CakePHP Working with Database Sep 10, 2024 pm 05:25 PM

Working with database in CakePHP is very easy. We will understand the CRUD (Create, Read, Update, Delete) operations in this chapter.

CakePHP Date and Time CakePHP Date and Time Sep 10, 2024 pm 05:27 PM

To work with date and time in cakephp4, we are going to make use of the available FrozenTime class.

CakePHP File upload CakePHP File upload Sep 10, 2024 pm 05:27 PM

To work on file upload we are going to use the form helper. Here, is an example for file upload.

Discuss CakePHP Discuss CakePHP Sep 10, 2024 pm 05:28 PM

CakePHP is an open-source framework for PHP. It is intended to make developing, deploying and maintaining applications much easier. CakePHP is based on a MVC-like architecture that is both powerful and easy to grasp. Models, Views, and Controllers gu

CakePHP Creating Validators CakePHP Creating Validators Sep 10, 2024 pm 05:26 PM

Validator can be created by adding the following two lines in the controller.

CakePHP Logging CakePHP Logging Sep 10, 2024 pm 05:26 PM

Logging in CakePHP is a very easy task. You just have to use one function. You can log errors, exceptions, user activities, action taken by users, for any background process like cronjob. Logging data in CakePHP is easy. The log() function is provide

How To Set Up Visual Studio Code (VS Code) for PHP Development 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

See all articles