The mcrypt extension is missing. Please check your PHP configuration

Question

I just followed the tutorial located at https://www.digitalocean.com/community/articles/how-to-install-linux-apache-mysql-php-lamp-stack-on-ubuntu while fixing multiple other errors that I came across along the way and I'm stuck with one last error. When I log in to phpMyAdmin, there's a huge red error at the bottom saying "The mcrypt extension is missing. Please check your PHP configuration.". I installed everything listed in the tutorial on Ubuntu 13.10 via putty.

Susquehanna

Answer 1

Try this:

sudo apt-get install php5-mcrypt
sudo ln -s /etc/php5/conf.d/mcrypt.ini /etc/php5/mods-available
sudo php5enmod mcrypt 
sudo service apache2 restart

Sparrowgrass

Funny I just got this today reinstalling the lamp stack. Thanks! – Lanceted

After fresh ubuntu 14.04 and LAMP install, all I needed to do was add the mod: sudo php5enmod mcrypt. cheers. – Sergio

I got "ln: failed to create symbolic link /etc/php5/mods-available/mcrypt.ini: File exists" when executing second line. It seems its already done for you in the first step. – Odaodab

@BasilMusa thanks; which Ubuntu version are you running? – Sparrowgrass

Second line is too important, solve my issue thanks. +1 – Katherine

I followed every instruction here and in other places but in vain. ubuntu 14.04.3 -- PHP 5.5.9-1ubuntu4.14 -- nginx/1.8.1 -- Server version: 5.7.10 - MySQL -- Database client version: libmysql - 5.5.47 -- phpMyAdmin Version: 4.0.10deb1....anyone have an idea? – Sergio

Still happening, and the server itself is not a dependency ? (Probably due to the MariaDB etc. ambiguity. Purging marks Apache2 as no longer required ? – Pronation

@Pronation Which phpMyAdmin version? – Sparrowgrass

Apologies, my versions always come from Ubuntu repositories, currently Trusty, more specifically this version came from the aws sources for eu-west-1. (these are not strictly mirrors and they are not identical from region to region). So 4:4.0.10-1 but this is likely a package issue then. – Pronation

Last two lines worked for me. Ubuntu server 14.04.4. – Cruz

Answer 2

I've followed the exact tutorial with OP on digital ocean. The only steps that missing is to

sudo php5enmod mcrypt
sudo service apache2 restart 

and the error gone after restarting the apache service

Vaules

What those two command do is this: the 1st line is enabling module named 'mcrypt', and then restart apache2 to update the config. You can see the enabled module from /etc/apache2/mods-available. Enjoy LAMP life :) – Dowager

Answer 3

Adding this answer for anyone who encounters this issue with Linux Mint 17.

Just installed a LAMP stack on and was getting this error. The mycrpt.ini file was already inst the /etc/php5/mods-available directory. All that needed to be done was to run the command to enable the module:

sudo php5enmod mcrypt

Restart apache after that and you'll be good to go.

Analyzer

Answer 4

I just stuffed a symbolic link into the Apache portion of php configuration. Platform: Xubuntu 14.04 LTS.

Details:

1. cd /etc/php5/apache2/conf.d
2. sudo ln -s ../../mods-available/mcrypt.ini 20-mcrypt.ini
3. ls -l to see if the new link is there
4. sudo apache2ctl restart

HTH.

Oberland

Answer 5

For those using a LEMP stack (nginx & php5-fpm), this is the solution

apt-get install php5-mcrypt
php5enmod mcrypt
service php5-fpm restart
service nginx restart

(run each with sudo, naturally)

Fayina

am still stuck with this on phpmyadmin...any ideas?? – Sergio

@Sergio Stuck with what, more precisely? – Fayina

Thanks! Important critical steps for nginx stacks! – Neva

Answer 6

Try this:

sudo apt-get install mcrypt php5-mcrypt; php5enmod mcrypt; service apache2 restart

Octosyllable

Answer 7

I am on a Mac OS X Yosemite using Terminal, and I fix this error

the requested PHP extension mcrypt is missing from your system

by running the following commands :

brew update
brew upgrade
brew tap homebrew/dupes
brew tap josegonzalez/homebrew-php
brew install php54-mcrypt

Runty