Set default file viewers like php file viewer

[toolmania1]

How do you set default file viewers on Androids like the Evo? I want to set certain apps ( any, none in particular ) to be able to open php files. Well, at least have them all displayed in a pop up so I can choose which app to open the php file with. I have a related post about this, but that dealt with Google Drive. So, I am posting this separately so that I can figure out how to set apps to be default php file viewers.

Thanks!

 

[SiempreTuna]

On my phone, I get prompted if there's more than one option available. There is an option to Always Use something, but I use the use this time option so I always get prompted.

 

[jefboyardee]

Default App Manager Lite is an easy way to set default apps.