you wanted to take short cuts on everything...your original post stated that your gf has filed a foreign divorce which is pending why?? because shes not here in uk?? how can she apply a foreign divorce is shes in the PH were her marriage is existing??
your gf is in the PH let her file an annulment which will cost around 200-250,000 pesos or more....then when the annulment is done , you can come and visit her in the PH to prove that you have met and the relationship is existing... then she can apply for fiance visa to go to the UK.