Install multiple versions of PHP in parallel for Ubuntu

phpInstall.sh

#!/bin/bash


# Install common dependency
sudo apt install python-software-properties

# Add Ondřej Surý PPA
sudo add-apt-repository ppa:ondrej/php

# Update apt 
sudo apt-get update

# Install apache versions
sudo apt install php5.6 php7.0 php7.1

# Install common extensions
sudo apt install php5.6-cli php5.6-xml php5.6-mysql php7.0-cli php7.0-xml php7.0-mysql php7.1-cli php7.1-xml php7.1-mysql php5.6-curl php7.0-curl php7.1-curl php5.6-mbstring php7.0-mbstring php7.1-mbstring php5.6-zip php7.0-zip php7.1-zip

# Switch between versions
# sudo update-alternatives --set php /usr/bin/php5.6
# sudo update-alternatives --set php /usr/bin/php7.0
# sudo update-alternatives --set php /usr/bin/php7.1