I'm running a site on 1and1 hosting using php5.2. I've been using the auto upgrade option to keep the site on the latest version (currently on 3.4.2).
1and1 sent out a message saying that it will be necessary to upgrade to php5.4 in April.
I thought I'd get ahead of the curve and update the php version. Unfortunately as soon as I switch on php5.4 I get 'Error Establishing database connection'
Has anyone any idea what may be causing this?