upgrade from php7.1 to php7.2 with mcrypt

gistfile1.txt

sudo add-apt-repository ppa:ondrej/php
sudo apt-get update
sudo apt-get install -y php7.2 php7.2-fpm php7.2-xml php-dev php-pear libmcrypt-dev
sudo pecl install mcrypt-snapshot

# add mcrypt.so to php cli and fpm
sudo bash -c "echo 'extension=mcrypt.so' >> /etc/php/7.2/cli/php.ini"
sudo bash -c "echo 'extension=mcrypt.so' >> /etc/php/7.2/fpm/php.ini"

# change nginx site-availables to use php7.2-fpm
fastcgi_pass unix:/var/run/php/php7.2-fpm.sock;

# tell systemd to switch from php7.1 to php7.2
sudo systemctl disable php7.1-fpm
sudo systemctl stop php7.1-fpm
sudo systemctl enable php7.2-fpm
sudo systemctl start php7.2-fpm

# some other references
# https://lukasmestan.com/install-mcrypt-extension-in-php7-2/
# https://serverpilot.io/community/articles/how-to-install-the-php-mcrypt-extension.html

Issue Solved when installing php7.2-mcrypt

I was also facing the same issue. Check this link https://stackoverflow.com/q/48275494/7713811 to get the right solution for installing it in PHP