How to change php version in apache2 on local ubuntu webserver?

Question

linux

Hello. I ran into such a problem - I need to transfer the site to a LAN to work with it, I installed php 5.6 on Apache, and on the php 5.3 server, after the transfer I got such a shield

. At first I thought I copied the files crookedly - I downloaded them via ftp. I created an archive on the server and downloaded it via ssh. Filled in the Apache directory - the same thing. Apparently the problem is in the version of php. You need to switch to 5.3.
I googled - all the vars led to phpbrew, but either I'm stupid, or the skis don't go - I download curl according to the manual, change the rights, copy to /usr/bin/ and phpbrew init. Silent. I edit .bashrc according to the manual. Silent. phpbrew known - silent. phpbrew variants - silent.
I suppose there is an easier option - download the package and change one of the apache configs. But I don't know where to change. Tell me, experienced admins. I am a simple coder, I was harnessed to this crap to make a mobile version on a finished site with a CMS without any information on it, I don’t even know where the markup components are ... But this is a story about something else.
Help me change the php version, please. Thanks everyone for the replies.