PHP being the dominant language on the Internet, Many cpanel customers used multiple versions of PHP 5.2, 5.3, 5.4 and 5.5 for their customer php application. In Cpanel, CloudLinux Multiple cPanel versions plugin providing option to select among a large number of PHP extensions. Quite often one user needs one extension while the other customer needs another.
When using different software, you may need to use an older version of PHP while running a newer version of PHP on a different domain. For example: You can have PHP 5.4 for the site in public_html and if you want to use PHP 5.3 in a subdirectory then install manually multiple php version and update add handler in .htaccess file.
Manually install multiple php version in cpanel.
Use the following Steps to install multiple php versions.
Download php tar file which version you want to install.