recompiling php

ive a problem with php and mysql, and was told to re-compile php. is this easy?? i got a box with rhl 9 pre-loaded, with php and mysql installed, but no apache. so i just downloaded the apache binary. php was installed with rpm i think. to recompile, do ive to uninstall php firs t(u can guess im used to windows) or will the new compile just overwrite everything. -- ********************************** Free Nokia Ringtones US http://www.ring-tones.us **********************************