How do you dial a mobile phone number in the Philippines?

If you're calling a UK mobile phone that happens to be physically in the Philippines, you dial the UK number as normal. The physical location of the mobile does not change how you dial the number.

If you're calling a Philippines mobile phone, dial +62 (on a mobile) or 00 62 (on a landline phone), followed by the Philippines number, omitting the trunk prefix 0.