search
HomeBackend DevelopmentPHP Tutorialthinkphp文件处理类Dir.class.php的用法分析_php实例

本文实例分析了thinkphp文件处理类Dir.class.php的用法。分享给大家供大家参考。具体分析如下:

在我的WBlog中,有个清除缓存工能,所谓清除缓存就是删除程序运行时生成的缓存文件,这些文件全部都存在项目的Runtime文件夹里面,当时在做这个清除缓存的程序时使用项目函数库自定义的一个函数来删除缓存文件,只能整个地删除Runtime,太粗糙了,我觉得有必要作一下细分删除,其实thinkphp扩展类库有个不错的文件处理类Dir.class.php,Dir.class.php类,不是每个thinkphp版本都有,如果你所下载的版本没有,可以从其它版本去找,现在来说一下Dir.class.php的应用.

Dir.class.php是一个文件处理类,用它可以:

1、取得目录下面的文件信息

2、删除目录或文件

由于我要完善WBlog缓存清除功能,这里我只写了上面的第2个功能,至于第1个功能我将做模板文个修改功能时再写,下面是我在清除缓存的控制器定义的一个del()方法:

复制代码 代码如下:
public function del(){       
    $type=trim($_GET['type']);    
    if(emptyempty($type)) $this->error('请选择缓存类型!');    
            
        switch($type) {    
        case 1:// 全部清空                 
             $path   =   WEB_PATH.'Runtime';    
            break;    
        case 2:// 文件缓存目录    
            $path   =   WEB_PATH.'Runtime/Temp';    
            break;    
        case 3://  数据目录    
            $path   =   WEB_PATH.'Runtime/Data/_fields';    
             break;    
        case 4://  模板文件缓存    
             $path  =  WEB_PATH.'Runtime/Cache';    
            break;    
        case 5:// 清空全部后台缓存                 
             $path   =   APP_PATH.'Runtime';    
            break;    
        case 6:// 后台文件缓存目录    
            $path   =   APP_PATH.'Runtime/Temp';    
            break;    
        case 7://  后台数据目录    
            $path   =   APP_PATH.'Runtime/Data/_fields';    
             break;    
        case 8://  模板文件缓存    
             $path  =  APP_PATH.'Runtime/Cache';    
            break;    
        }    
           
         import("@.ORG.Dir");//加载Dir.class.php类(我放在后台项目里)
            
    if(!Dir::isEmpty($path)){//静态调用Dir.class.php的isEmpty()    
     Dir::del($path);    
             
     $this->success();    
     }else{     
    $this->error('已清空!');    
    }    
}

说明:

import("@.ORG.Dir") --加载Dir.class.php类(我放在后台项目里)

Dir::isEmpty($path)--静态调用Dir.class.php的isEmpty()

Dir::del($path);--静态调用Dir.class.php的del()方法.

上面在使用类时,我使用了静态调用方法,这省去了实例化的麻烦.

希望本文所述对大家基于ThinkPHP框架的PHP程序设计有所帮助。

Statement
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
PHP and Python: Different Paradigms ExplainedPHP and Python: Different Paradigms ExplainedApr 18, 2025 am 12:26 AM

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP and Python: A Deep Dive into Their HistoryPHP and Python: A Deep Dive into Their HistoryApr 18, 2025 am 12:25 AM

PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

Choosing Between PHP and Python: A GuideChoosing Between PHP and Python: A GuideApr 18, 2025 am 12:24 AM

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP and Frameworks: Modernizing the LanguagePHP and Frameworks: Modernizing the LanguageApr 18, 2025 am 12:14 AM

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHP's Impact: Web Development and BeyondPHP's Impact: Web Development and BeyondApr 18, 2025 am 12:10 AM

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

How does PHP type hinting work, including scalar types, return types, union types, and nullable types?How does PHP type hinting work, including scalar types, return types, union types, and nullable types?Apr 17, 2025 am 12:25 AM

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values ​​and handle functions that may return null values.

How does PHP handle object cloning (clone keyword) and the __clone magic method?How does PHP handle object cloning (clone keyword) and the __clone magic method?Apr 17, 2025 am 12:24 AM

In PHP, use the clone keyword to create a copy of the object and customize the cloning behavior through the \_\_clone magic method. 1. Use the clone keyword to make a shallow copy, cloning the object's properties but not the object's properties. 2. The \_\_clone method can deeply copy nested objects to avoid shallow copying problems. 3. Pay attention to avoid circular references and performance problems in cloning, and optimize cloning operations to improve efficiency.

PHP vs. Python: Use Cases and ApplicationsPHP vs. Python: Use Cases and ApplicationsApr 17, 2025 am 12:23 AM

PHP is suitable for web development and content management systems, and Python is suitable for data science, machine learning and automation scripts. 1.PHP performs well in building fast and scalable websites and applications and is commonly used in CMS such as WordPress. 2. Python has performed outstandingly in the fields of data science and machine learning, with rich libraries such as NumPy and TensorFlow.

See all articles

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)
1 months agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
1 months agoBy尊渡假赌尊渡假赌尊渡假赌
Will R.E.P.O. Have Crossplay?
1 months agoBy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

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment

VSCode Windows 64-bit Download

VSCode Windows 64-bit Download

A free and powerful IDE editor launched by Microsoft

MantisBT

MantisBT

Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

SecLists

SecLists

SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.