I have PHP 7.1 on my Ubuntu machine.
I need to work on a project that uses
php5 5.3.3-7+squeeze17 (yes... a 10 year old code).
I have found the source of this package: https://launchpad.net/debian/+source/php5/5.3.3-7+squeeze17
If I install
php5_5.3.3.orig.tar.gz following using any of these methods:
Will this corrupt my current PHP 7.1 and prevent it from working? (- might this change the settings via Apache2 on
What is the proper way to install this version, so I will be able to switch between both versions?