You could try Engine Yard (https://www.engineyard.com/), I think they are using EC2 (has a datacenter in Ireland).
Can't vouch for how "good" their PHP offering is having never used it, definitely a passionate team though, I've met several of them over the years at PHP related conferences (in the UK) as the company has grown.
I can vouch for it - it's solid. Feel free to jump into #engineyard on IRCFreenode if you have any questions - or just use the trial hours to spin up a staging version and give it a try.
shameless plug:
fortrabbit (i am founder) is dedicated "PHP as a Service". Our infrastructure provider is AWS Ireland, we have a lot of clients from the UK.
at least one alternative:
http://viaduct.io/ looks promising to me. seems to be from the UK, running on own hardware.
Nice - I'll take a look at fortrabbit. Your MYSQL Add-on pricing seems a little steep between 64mb and 512mb. Shame you do not have anything in the middle.
Shame that I have a wait to have a quick play. "Yeah! You will get a free slot in 5-7 days"
Viaduct looks promising but no pricing information.
Can't vouch for how "good" their PHP offering is having never used it, definitely a passionate team though, I've met several of them over the years at PHP related conferences (in the UK) as the company has grown.