If you'd like to install SUSE Add-on products, Add repositories for them like follows.
For example on here, Add "Web and Scripting Module" repository.
|||Open YaST Control Center.|
|||Select [Software] - [Add-On Products] and Enter.|
|||Select [Add] button which is under-left and Enter.|
|||select [Extensions and Modules ***] and proceed to next.|
|||Select [Web and Scripting Module] and proceed to next.|
|||Check a box [I Agree to the License Terms] and proceed to next.|
|||Select [Accept] which is under-right and Enter.|
|||Select [OK] and Enter.|
|||Push [Finish] to complete. now It's possible to install packages in this repo like PHP and pthers with yast or zypper commands.|