femme.

Visas are now electronic and the hardcopy has no value

All you need to do is print the emailed visa, check all the details like name, passport number, etc.

You will need the hardcopy if requested at the airport in Manila as a proof that you have visa. In Doha you would not need it as the immigration officers have all the details stored in the computer. Just keep the copy with you.

Welcome to Doha.