You can easily change the PHP version from the cPanel offered to you. When you are using the third party software then sometimes you need to change the PHP version as those applications need different PHP version.
So to change your the PHP version of your cPanel you need to do the following steps:
2) Scroll down to Software and Services section and then click on the “Select PHP Version”.
3) Now from the drop down menu you can choose the php version according to your requirement.
4) After that click on “Set as current” button.