change php version LAMP (leap 15 x86_64)

English Applications
1

How to change the php version to for example 5.4
I need a lower php version to test an old website on LAMP.
LAMP is working fine.

openSUSE Leap 15 x86_64

2

Older php versions can be found here: http://download.opensuse.org/repositories/devel:/languages:/php:/

3

Thanks for the php link