How do I install legacy versions of PHP?

Question

How do I install legacy versions of PHP?

Answer

Note: Legacy PHP versions are only available when using CloudLinux, Imunify360, or TuxCare's Extended Lifecycle Support (ELS) for PHP. Information on the various PHP providers is available in the following:
ALT-PHP vs EA-PHP: What is the difference?

Additional PHP versions are able to be installed via EasyApache 4 when using CloudLinux, Imunify360, or TuxCare's ELS PHP.

1. Log in to WHM as the root user
2. Navigate to Home / Software / EasyApache 4
3. Click Customize under Currently Installed Packages
4. Click PHP Versions
5. Mark the version for installation by clicking the switch icon to the far right of the version
6. When prompted, click the option to only install the PHP version or the PHP version and extensions
7. Click Review, then review the output to ensure the PHP version you marked for installation is installed
8. Click Provision to install the selected PHP version(s)

Additional Information

How to install and activate CloudLinux's PHP Selector

How to change PHP version for a domain?