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.