To change the version of PHP used on your website, being by logging in to SiteWorx.
On the menu, select "Domains" then "PHP options". You will be presented with a list of domains within your SiteWorx account.
To change a domains PHP version, click on the "Edit" button beside the domain in the list, select the new version of PHP you wish to use from the list that appears, then click "Save". The change should happen within 30 seconds.