Sure! Here’s the step-by-step guide on how to update PHP in Joomla:

Step-by-step guide to update PHP in Joomla:

1. Check Joomla System Requirements:
– Verify the Joomla version you’re using.
– Visit the Joomla official website or documentation to find the system requirements for your Joomla version.
– Note down the minimum PHP version required for your Joomla version.

2. Check PHP Version:
– Log in to the Joomla Administrator Panel.
– In the top menu, go to “System” and select “System Information” from the drop-down menu.
– Look for the “PHP Version” information in the System Information page.
– Note down your current PHP version.

3. Verify PHP Compatibility:
– Compare your current PHP version with the minimum PHP version required for your Joomla version.
– Ensure that your current PHP version is equal to or higher than the minimum required version.

4. Backup Your Joomla Site:
– Before proceeding with any updates, it’s essential to create a backup of your Joomla website.
– Use your preferred backup method, such as a backup extension or manually copying files and databases.

5. Update PHP Version:
– Contact your web hosting provider or server administrator to update the PHP version for your Joomla site.
– They will guide you through the process of upgrading PHP on your server. (Different hosting companies have different options)
– Depending on your hosting environment, you may have control panel options or command-line access to update PHP.
– Follow the instructions provided by your hosting provider or server administrator to update PHP to the desired version.

6. Test Your Joomla Site:
– After updating PHP, access your Joomla website to ensure it is functioning correctly.
– Check various pages, features, and functionalities to verify that everything is working as expected.
– If you encounter any issues, refer to Joomla’s official documentation or seek assistance from the Joomla community or your hosting provider.

Note: It’s always recommended to update PHP in a test environment first to ensure compatibility with your Joomla extensions and custom code. This way, you can identify and resolve any compatibility issues before updating your production website.

Remember to keep your Joomla installation, extensions, and themes up to date to maintain security and compatibility with the latest PHP versions.