How to set up web access directory structure in PHP

With the rapid development of the Internet, PHP, as a popular Web programming language, is widely used in Web development. Therefore, how to set up the PHP web access directory structure is crucial to the normal operation of the website. This article will introduce how to set up the web access directory structure in PHP.

1. What is the Web access directory structure?

Web access directory structure, also known as the site directory, is the main directory of the Web application, including various files, subdirectories and resources of the website. In Web development, the access directory structure will be designed to include page jumps, database connections, file uploads and downloads, and resource calls such as pictures and videos.

2. Settings of PHP Web access directory structure

1. Settings of Web root directory

The Web root directory is the highest-level directory of the Web application. All files, Pages and resources are stored in this directory. In PHP, we can set the location of the web root directory through the configuration file. In Apache, you can set the root directory by modifying DocumentRoot in the httpd.conf file; in IIS, you can set the root directory by modifying the "Home Directory" in the Web site properties. Setting the web root directory can ensure the security and availability of the website, and is beneficial to the logic and readability of the code.

2. Subdirectory settings

It is impossible for all files and resources in a Web application to be stored in the root directory, so in PHP, we need to set the location of the subdirectory for convenience Store various files and resources. In PHP, we can set the location of the subdirectory through the .htaccess file or the php.ini file. Setting up subdirectories can bring better scalability and maintainability to the website.

3. Setting access permissions

In PHP, setting access permissions is a key link to ensure the security of web applications. By default, PHP's Web access directory structure may have some security issues, such as the access permissions of some directories being too broad. So in PHP, we need to set access permissions to protect the security of the web application. In Apache, you can set access permissions by modifying the Directory in the httpd.conf file; in IIS, you can set access permissions by modifying "Use external authentication" in the Web site properties.

4. Setting of file upload and download directories

In web applications, file upload and download are very important functions, and only uploaded files and downloaded files can be stored in specific directory to facilitate subsequent management and calls. In PHP, we need to set the location of the file upload and download directories to ensure the availability and manageability of the files. In Apache, you can set the directory and size limit for file upload by configuring the upload_tmp_dir and upload_max_filesize of the php.ini file in the httpd.conf file; in IIS, you can modify the "Enable folder browsing" in the Web site properties. Set the location of the download directory.

3. Summary

In this article, we introduced the settings of the PHP Web access directory structure, including the settings of the Web root directory, the settings of subdirectories, the settings of access permissions, file upload and Download directory settings, etc. These settings can provide better security, availability, scalability, and maintainability for web applications. In actual development, we must pay attention to the setting of the Web access directory structure to ensure the normal operation and security of Web applications.

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