Mcrypt PHP extension required. code example

Example: mcrypt php extension required

# 1) Create a Symbolic link to mcrypt.ini in PHP mods folder
sudo ln -s /etc/php5/conf.d/mcrypt.ini /etc/php5/mods-available/mcrypt.ini
# 2) Activate extension
sudo php5enmod mcrypt
# 3) Restart Apache
sudo service apache2 restart