Bash script to switch php version between 5.6 and 7.0

switch-php.sh

echo Enter php version
echo 1: v7.0 to v5.6
echo 2: v5.6 to v7.0
echo 
read v
if [[ "$v" == 1 ]]
        then
                echo changing php from v7.0 to v5.6
                sudo a2dismod php7.0 ; sudo a2enmod php5.6 ; sudo service apache2 restart
                sudo update-alternatives --set php /usr/bin/php5.6
else
        echo changing php from v5.6 to v7.0
        sudo a2dismod php5.6 ; sudo a2enmod php7.0 ; sudo service apache2 restart
        sudo update-alternatives --set php /usr/bin/php7.0
fi