This is a quick step-by-step walkthrough for changing your PHP version on your Professional Hosting account, via the 34SP.com control panel.
Installing a new PHP version
Login to your account
Firstly, you’ll need to login to your 34SP.com account at https://account.34sp.com.
Choose ‘Manage Sites’
Once you have logged in, click on the ‘Manage Sites’ icon. This will bring up a list of websites or domain names you have in your 34SP.com account. Simply choose the website or domain name to wish to edit by clicking on it.
Select ‘PHP Version’
From the Overview menu, select the ‘PHP Version’ button.
Select your PHP version
From the ‘Version’ drop down menu select the PHP version you want to use on your website.
Select ‘Update PHP Version’
Below the drop down menu, click the ‘Update PHP Version’ button to save your changes.