Summary of usage of PHP file directory

In PHP development, the directory of PHP files is very important. PHP Chinese website has collected several articles on the usage of PHP file directories. I hope it will be helpful for everyone to understand how to obtain the file directories. Let's take a look.

1.How to read all file names in a directory and subdirectories with php

This article mainly introduces how to read all file names in a directory and subdirectories with php Methods, several common methods are compared, and the final example summarizes a method of reading all file names in a directory and subdirectories in PHP. It is of great practical value. Friends who need it can refer to it. Generally speaking, in PHP There are indeed many ways to read the file names in the directory. The simplest is scandir. The specific code is as follows:

2.How to achieve unlimited directory traversal in PHP development

In PHP development, we often encounter various problems. If we want to realize unlimited traversal of directories in PHP, it is difficult to implement this method. After searching some information on the Internet and reading some forums, we can Discovering that PHP infinitely traverses directories is not as difficult as imagined, let’s take a look now.

3.php Detailed explanation of the definition and usage examples of chdir() function to change the current directory

In PHP, the chdir() function changes the current directory. What does it mean? , which means to get the current directory and change it to another directory. Originally, your current directory is the WWW/index directory. After using the chdir() function, and then return to the current directory, you will find that the current directory is no longer WWW/index. Directory. This article introduces the php chdir() function in detail, I hope it will be helpful to everyone.

4.How to modify the suffix of the specified file in php

This article mainly introduces the method of modifying the suffix of the specified file in php. The function foreachDir in the article can realize the file directory. Functions such as detection, reading, opening and file suffix replacement are very practical skills. Friends in need can refer to

5.php methods to obtain the physical path of the website root directory (recommended) Tips

In PHP program development, we often need to obtain the directory of the current website. We can obtain the physical path of the site root directory through constant definition, which is convenient for use in the program. The following introduces several commonly used methods to obtain the root directory of a website...

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