I've tried suggestions for solving this dealing with 13.10, but they don't seem to work. Hard refresh of the page doesn't remove the error. PHPMyAdmin has a box at the bottom indicating that the mcrypt extension is missing, even though it is installed for php.

How do I fix this?

  • extension=mcrypt.so did the trick for me ! Thanks ! – user292297 Jun 10 '14 at 16:40
  • 1
    sudo php5enmod mcrypt <br/> That is ok to me. – Mike Jul 28 '14 at 20:05
  • Ran into this problem earlier today, so I tried the recommended solution but was still seeing the error, so I decided to reboot and, wouldn't you know it, voila. – nburr Oct 14 '16 at 19:04

This is a reported bug. I had the same issue, found the answer here on ubuntuforums, so all credits goes to SeijiSensei:.

1) The mcrypt.ini file in /etc/php5/conf.d needs to be copied or symlinked to /etc/php5/mods-available:

cd /etc/php5/mods-available
sudo ln -s ../conf.d/mcrypt.ini . 

2) Activate the module with sudo php5enmod mcrypt.

3) Restart your web server: If using Apache, it's like this: sudo /etc/init.d/apache2 restart

Then log into the PMA, the issue will be fixed.

| improve this answer | |
  • I followed these instructions exactly; the mcrypt extension message is still at the bottom of the page when I log into phpmyadmin. – Adam Jun 4 '14 at 20:55
  • @Adam have you restarted your web server? – Arda Jun 4 '14 at 21:14
  • I have; in fact, I restart my web server every time I reboot my computer, which is often, as it is a laptop I use for classes. – Adam Jun 7 '14 at 17:38
  • Weird, have you got any errors during these steps ? I'm using exactly this way, and I don't have the issue anymore. – Arda Jun 8 '14 at 20:59
  • No errors in any of the error logs for Apache. The solution I selected works, but I admit I don't know enough about what's happening to understand why your solution wouldn't work for me. It may just be that I have something of a non-standard setup. – Adam Jun 8 '14 at 23:00

The fix that worked for me was relatively simple:

The solution: add the following line to the /etc/php5/apache2/php.ini file:


This line causes the mcrypt extension to be loaded automatically when the server restarts. I don't know why Arda's instructions didn't accomplish the same thing in my case, but I think it might have something to do with upgrading from earlier versions of Linux.

| improve this answer | |

Not the answer you're looking for? Browse other questions tagged or ask your own question.