PHP实现定时执行任务的方法,php实现任务
PHP实现定时执行任务的方法,php实现任务
本文实例讲述了PHP实现定时执行任务的方法,代码简单实用。分享给大家供大家参考。
具体实现方法如下:
ignore_user_abort(true); //客户端断开时忽略脚本中止(允许脚本一直执行) set_time_limit(0); //设置脚本最长执行时间,0不限制 do{ $handle = fopen('auto.txt', 'w'); if($fp) { $text = '你好\n\r'; $count = 0; for($i=1; $i<10; $i++) { if(! $c = fwrite($handle, '第'.$i.'行:'.$text)) //返回写入字符数,失败时返回false { echo '第'.$i.'次的写入失败!'; } $count += $c; } } fclose($handle); sleep(60); //延缓60秒执行 }while(true);
希望本文所述对大家的PHP程序设计有所帮助。
如果要用PHP文件的话,勉强可以做到
php里有一个sleep函数,具体使用是sleep(time)这里的time是以秒为单位
首先,建立php脚本
while(1){
//yourcode
sleep(3600*24);
}
?>
这里的yourcode就是你要PHP脚本执行的功能,虽然能达到这个目的,但是也有牺牲,你要在早上8点的时候通过URL访问这个脚本,也就是说执行PHP文件,并且,这个链接不能中断,要一直持续!!不然就无效了
PHP是单请求单执行,要有请求才执行的。
ignore_user_abort(); // 在后台运行
set_time_limit(0); // 不停地运行
$interval=30; // 设置定时值
do{
//做你要做的事情
sleep($interval); // 等侍
}while(true);
?>

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

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

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



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

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

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

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

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,

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

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 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.
