How to install old PHP version

You can install an older version of any package with Apt - you just have to look up the specific version name that you want. Assuming you're using Debian, you can look up old versions of packages at their site http://www.debian.org/distrib/packages

The format for installing said specific package is like this:

apt-get install <package name>=<version>

Such that if you want to install the version named 5.3.3-7+squeeze3, you use this:

apt-get install php5=5.3.3-7+squeeze3

But this also kind of brings me to the question "Why would you want to do that?" While you might have PHP scripts that require an older version of PHP, there hasn't been an upgrade in a very long time that has broken PHP scripts, in my experience (I run a web server that hosts a several hundred websites). As such, you'd be running a dangerously insecure version of PHP on your server. Are you sure you want to do that?

apt-get remove --purge yourphppackage

Go here : http://archive.ubuntu.com/ubuntu/pool/main/p/php5/

Get the deb file of the version you need.

dpkg -i yourphppackage.deb

Uninstall the old version using sudo apt-get purge php then Using this http://sg2.php.net/releases/ link we can able to download any tar compression of the specific version of PHP.

Follow the below steps

1. Extract the tar file

2. cd php-7.0.*

3. ./configure

4. make

5. sudo make install

6. Check php version using php -v