If you have php installed on your suse os, but apache is not processing php page, then the following might help solve your problem:
1. edit /etc/sysconfig/apache2, on "APACHE_MODULES=" add "mod_php5"
2. Edit /etc/apache2/sysconfig.d/loadmodule.conf
Add this line for 32 bit OS
LoadModule php5_module /usr/lib/apache2/mod_php5.so
Add this line for 64 bit OS
LoadModule php5_module /usr/lib64/apache2/mod_php5.so
3. run these command
/etc/init.d/apache2 stop
/etc/init.d/apache2 start