yast2 -i apache2-mod-php5

Edit /etc/apache2/sysconfig.d/loadmodule.conf

Add LoadModule php5_module                    /usr/lib64/apache2/mod_php5.so

Edit /etc/apache2/http.conf and add

AddHandler application/x-httpd-php .php5 .php4 .php .php3 .php2 .phtml
AddType application/x-httpd-php .php5 .php4 .php .php3 .php2 .phtml
AddType application/x-httpd-php-source .phps
AddHandler php5-script .php

apache2ctl stop

apache2ctl start

Then check it worked  apache2ctl -M

php5_module (shared) should be listed.