Software⏱️ 2 min read📅 2026-05-31

How to Fix: Mcrypt extension is missing in 14.04 server for mysql

The mcrypt extension is missing in php configuration.

Quick Answer: Check if php5-mcrypt is installed, as it seems to be already installed. Verify the php version and ensure that the mcrypt extension is enabled in the php.ini file.

📋 Table of Contents

  1. 🔍 Why This Happens
  2. 🛠️ Step-by-Step Verified Fixes
  3. 🎯 Final Words

The 'Mcrypt extension is missing' error in phpMyAdmin on Ubuntu 14.04 can be resolved by following the steps below.

🔍 Why This Happens

  • The Mcrypt extension has been deprecated and removed from PHP 7.1, which is included in Ubuntu 14.04.

🛠️ Step-by-Step Verified Fixes

Method 1: Enable Mcrypt using php.ini

  1. Step 1: Open the /etc/php5/apache2/php.ini file in a text editor.

Step 2:

  1. Step 2: Add the following line to the file: 'extension=php_mcrypt.dll' and save the changes.

Method 2: Reinstall php5-mcrypt

  1. Step 1: Run the command 'sudo apt-get install libmcrypt-dev' to reinstall the Mcrypt library.

Step 2:

  1. Step 2: Run the command 'sudo apt-get install php5-mcrypt' to reinstall the php-mcrypt extension.

🎯 Final Words

By following these steps, you should be able to resolve the 'Mcrypt extension is missing' error in phpMyAdmin and ensure that your MySQL server is functioning correctly.

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