php-switch.sh

#!/bin/bash

###
# Script for switching PHP versions
# Ivan Weiler
#
# Reference:
# http://robosparrow.github.io/2016/12/10/php-5-on-ubuntu16.html
# https://labbots.com/bash-script-to-switch-php-versions-in-ubuntu/
###

GREEN="$(tput setaf 2)"
RED="$(tput setaf 1)"
RESET="$(tput sgr0)"

# CURRENT="$(php --version | head -n 1 | cut -d " " -f 2 | cut -c 1,3)"
# $(php --version | head -n 1 | cut -d " " -f 2 | cut  -c-3)
# php -r 'echo PHP_MAJOR_VERSION . "." . PHP_MINOR_VERSION;'

CURRENT="$(php -r 'echo PHP_MAJOR_VERSION . "." . PHP_MINOR_VERSION;')"

if [ -z "$1" ]
    then
        echo "${RED}Enter a PHP version: 5.6|7.0|7.1|7.2${RESET}";
        exit;
fi

if [ $1 = $CURRENT ]
    then
        echo "${GREEN}This version is running!${RESET}";
        exit;
fi

printf "${GREEN}Switching to PHP %s..${RESET}\n" "$1"

sudo a2dismod php$CURRENT
sudo a2enmod php$1 
sudo update-alternatives --set php /usr/bin/php$1

sudo service apache2 restart && echo "${GREEN}$(php --version | head -n 1)${RESET}"