How To Name A Php File

When you are working with PHP, it’s important to follow best practices and conventions to make your code easy to read and maintain. One aspect of this is how to name your PHP files. In this blog post, we will go over some tips and recommendations on how to name your PHP files correctly.

Naming conventions for PHP files

Here are some general guidelines to follow when naming your PHP files:

  • Use lowercase letters: Using lowercase letters for file names ensures consistency across different operating systems and web servers. Most web servers are case-sensitive, so using lowercase letters helps avoid potential issues.
  • Separate words with hyphens or underscores: Use hyphens (-) or underscores (_) to separate words in file names. This makes it easier to read and understand the purpose of the file. Typically, developers prefer hyphens over underscores, but it’s mostly a matter of personal preference.
  • Be descriptive: Choose a file name that reflects the purpose or content of the file. For example, if your file contains a class definition for a user, you might name the file user.php or user-class.php.
  • Avoid using special characters: Stick to alphanumeric characters, hyphens, and underscores when naming your PHP files. Special characters can cause issues with some web servers and operating systems.

Examples of good PHP file names

Here are some examples of well-named PHP files:

  • index.php: This is the default file name for the main page of a website or application.
  • header.php: A file that contains the header section of a web page, typically including the site logo, navigation menu, and other common elements.
  • contact-form.php: A file containing the code for a contact form.
  • database-connection.php: A file that establishes a connection to a database.

Organizing your PHP files

In addition to naming your PHP files appropriately, it’s also important to organize them in a logical manner. Here are some suggestions for organizing your PHP files:

  • Group related files together in folders: For example, if you have several files related to user management, you might create a folder called users and store all the related files within that folder.
  • Use a consistent naming convention for folders: Just as with file names, it’s important to use a consistent naming convention for your folders. Most developers use lowercase letters and hyphens or underscores to separate words.
  • Use an autoloader: If you’re working with a larger PHP application, it’s a good idea to use an autoloader to automatically include the necessary PHP files as needed. This can help keep your file organization clean and easy to maintain.


Naming and organizing your PHP files in a clear and consistent manner is essential for maintaining clean, readable code. By following these best practices and conventions, you’ll make it easier for both yourself and other developers to work with your PHP projects.