I want to kno what p.h. means on guitar pro. and i want to make the guitar make that squealing sound but i dont kno if i need a whammy bar or if theres some trick. somebody help.
P H stands for pinch harmonic. To do one you have to brush the string with the fleshy part of your thumb after you play the note. Search google for a better explaination. btw pinch harmonics can take a long time to learn to do so dont worry if you dont get it for a while
Its basically striking the string lightly with your thumb to produce a pinch harmonic.

And yea it does take a long time and it pisses you off when you cant get it but you need to practice it for awhile.

Also it'll sound better depending on your pickups