Introduction

If you manage multiple websites or applications, you may need different PHP versions for different folders on the same domain. Learning how to set the PHP version per folder lets you run older applications without affecting the rest of your website.

For example, your main WordPress website might work best with PHP 8.3, while an older script inside a subfolder only supports PHP 7.4. Instead of changing the PHP version for your entire domain, you can assign a different version to just that folder.

In this guide, you’ll learn how to set the PHP version for a specific folder, what you need before starting, common mistakes to avoid, and troubleshooting tips.

What Is Setting the PHP Version per Folder?

Setting the PHP version per folder means assigning a different PHP version to a specific directory inside your website instead of changing it for the entire domain.

For example:

This allows different applications to run independently using the PHP version they require.

Real-world Example

Imagine your main website uses the latest version of WordPress, but you still have an old billing application that only supports PHP 7.4.

Instead of downgrading your whole website, you simply assign PHP 7.4 to the billing folder while keeping everything else on PHP 8.3.

Why Is It Important?

Setting PHP versions per folder is useful because it lets you:

• Keep older applications running
• Use newer PHP versions for better speed
• Improve security
• Avoid compatibility problems
• Test new applications safely
• Run multiple PHP applications on one hosting account

Step-by-Step Guide to Set the PHP Version per Folder

Step 1: Log in to cPanel

What to do

Log in to your hosting account and open cPanel.

Why

You’ll manage your website files and PHP settings from here.

What you’ll see

The cPanel dashboard with tools like:

• File Manager
• Domains
• MultiPHP Manager
• PHP Selector

Beginner Tip

Bookmark your cPanel login page for future use.

Common Mistake

Entering incorrect login credentials.

Step 2: Open File Manager

What to do

Open File Manager and navigate to the folder where you want a different PHP version.

Example:

public_html/old-app/

Why

The PHP configuration will only affect this folder.

What you’ll see

Your website files, including:

• index.php
• config.php
• images
• uploads

Beginner Tip

Double-check you’re inside the correct folder before editing files.

Common Mistake

Editing the wrong folder.

Step 3: Show Hidden Files

What to do

Enable Show Hidden Files (Dotfiles) inside File Manager.

Why

The .htaccess file is hidden by default.

What you’ll see

The hidden .htaccess file.

Beginner Tip

If it doesn’t exist, create a new .htaccess file.

Common Mistake

Thinking the file doesn’t exist because hidden files are disabled.

Step 4: Edit the .htaccess File

What to do

Open the .htaccess file inside the folder.

Add the PHP handler provided by your hosting company.

Example:

AddHandler application/x-httpd-ea-php74 .php

or

AddHandler application/x-httpd-ea-php82 .php

Why

This tells the server which PHP version to use for files inside this folder.

What you’ll see

The .htaccess editor.

Beginner Tip

Ask your hosting provider which PHP handler names they support.

Common Mistake

Using an incorrect PHP handler.

Step 5: Save the File

What to do

Click Save after making your changes.

Why

The new PHP version won’t apply until the file is saved.

What you’ll see

A success message.

Beginner Tip

Keep a copy of the original .htaccess before editing.

Common Mistake

Closing the editor without saving.

Step 6: Verify the PHP Version

What to do

Create a file named:

phpinfo.php

Inside it, add:

<?php
phpinfo();
?>

Visit:

https://yourdomain.com/folder/phpinfo.php

Why

This confirms the folder is using the correct PHP version.

What you’ll see

A page displaying detailed PHP information.

Beginner Tip

Delete the phpinfo.php file after testing because it exposes server information.

Common Mistake

Leaving the file publicly accessible.

When Is This Feature Useful?

You might set a PHP version per folder when:

• Running legacy PHP applications
• Hosting multiple scripts
• Testing software
• Migrating websites
• Developing new projects
• Maintaining older CMS installations

Best Practices

• Always create a backup first.
• Use the latest supported PHP version whenever possible.
• Remove old PHP versions when no longer needed.
• Test your website after changing PHP versions.
• Keep applications updated.
• Delete phpinfo.php after testing.
• Document any custom PHP settings.

Common Problems and Solutions

FAQs

Can I use different PHP versions in different folders?

Yes, if your hosting provider supports folder-level PHP handlers.

Does changing one folder affect the whole website?

No. Only the selected folder and its subfolders are affected.

Is this supported on every hosting account?

No. Support depends on your hosting provider and server configuration.

Can WordPress use a different PHP version than another folder?

Yes. Your WordPress installation can use one PHP version while another application uses a different one.

Is editing .htaccess safe?

Yes, but always keep a backup before making changes.

How do I know which PHP handler to use?

Your hosting provider or hosting documentation will list the available PHP handlers.

Can I switch back later?

Yes. Simply remove or update the PHP handler in the .htaccess file.

Will changing the PHP version delete my files?

No. It only changes how PHP files are processed.

Conclusion

Knowing how to set the PHP version per folder is a useful skill when managing multiple applications on a single hosting account. It allows older software to continue working while your main website benefits from newer, faster, and more secure PHP versions.

Before making any changes, always create a backup, verify the correct PHP handler with your hosting provider, and test your application after updating the configuration. With the right setup, you can safely run multiple PHP versions without affecting your entire website.