• Once the dependencies have been installed, you can install mcrypt with the command: sudo pecl install mcrypt-1.0.1. And there you go. Mcrypt is now installed. Go back to the process of installing whatever server software that depends upon this extension and you should be good to go. Not gone, just moved. Don't worry: mcrypt is not gone.
• Debian/ubuntu php5 (>= 5.4.0~rc6-1) has introduced two new commands: php5enmod and php5dismod # install the extension sudo apt-get install php5-mcrypt.

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The php mcrypt extension on ubuntu 14.04 shows that it is installed properly, but phpmyadmin says: Conceptual framework development.

262 words, estimated reading time 2 minutes. For some unknown reason, the default installation of PHP on Ubuntu Server does not install two popular (and often required) extensions - MCrypt and cURL.

My current php config is here. If you need anymore information, please contact me through the comments.

14 Answers

Try this:

Should show it located at /etc/php5/mods-available

Edit mcrypt.ini and change extension to match the path to mcrypt.so, example:

Now this:

Verify that new files exists here (they should be auto created from the issue above)

Otherwise do the following

Create symbol links now

Restart Apache

Restart php5 or php5-fpm

KevsinKevsin

Try just doing this:

And then:

I have installed fresh Ubuntu 14.04 (desktop version) to my computer. This way works for enabling mcrypt that was already installed.

Eliah KaganMURATSPLATMURATSPLAT

Install mcrypt extension for PHP, Enable it, and Restart Apache. Following are the commands to do:

d a i s y

The php5-mcrypt Ubuntu package install the config file mcrypt.ini into /etc/php5/conf.d/ which is the old PHP config directory layout.

The current way of working to enable modules in PHP5 is to put the ini files in the /etc/php5/mods-available directory.Then, to enable the module in PHP5, you have to create a symbolic link to the related ini files from /etc/php5/apache2/conf.d directory to enable the module when PHP is used under Apache or / and from /etc/php5/cli/conf.d if you want to have this module enabled when you use PHP outside Apache, in scripts run at the command line or from crontab.

Also note that in the conf.d directory, you can create the link to the ini file by putting a number in front of it to have the modules loaded in a specific order. Usefull when you need to load a module depending on another one.

Of course, don't forget to restart Apache if you have enabled the module for Apache :

BenoitBenoit

My 14.04 server install only needed (after php5-mcrypt installed)

If the Problem still occurs,

enable the module by adding: extension=mcrypt.so to

/etc/php5/cli/php.ini

and

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/etc/php5/apache2/php.ini

snickers2ksnickers2k

In Ubuntu 16.04 LTS, to enable the mcrypt module, with php 5.6:

or with php 7.0:

and then

You should be able to install the mcrypt extension for PHP by running:

Note that in Ubuntu 14.04 the php5-mcrypt is in the universe repository that could be disabled. In this case to install it you must enable the repository with:

This is the best way to add php 5.5 mcrypt extension on Ubuntu 14.04 Server

@Kevsin's answer worked for me, but I had to run mkdir -p /etc/php5/apache2/conf.d/ and manually run the sudo ln -s /etc/php5/mods-available/mcrypt.ini /etc/php5/apache2/conf.d/20-mcrypt.ini to get to work. sudo php5enmod mcrypt worked fine for the first symlink.

Note: I'm running PHP5-FPM. That may have been the difference.

For those who find this, for Ubuntu 16.04 (using PHP7), here is what I did to enable mcrypt:

How To Install Php Linux

Not the answer you're looking for? Browse other questions tagged 14.04mysqlphpphpmyadmindmcrypt or ask your own question.

As of PHP 7.1, the php-mcrypt was deprecated. And as of PHP 7.2 it was completely removed. This is a problem, since a number of server software titles still depend upon this encryption tool. And because software like Nextcloud, ownCloud, and many more have yet to shift that dependency, you might find yourself unable to install without mcrypt on the system. What do you do? No matter how many times you run either apt-get install php-mcrypt or yum install php-mcrypt, it won't work.

Fortunately, there's a solution. Said solution falls onto the shoulders of the pecl command. PECL is the PHP Extension Community Library, which serves as a repository for PHP extensions. Through this repository, you can install mcrypt.

What is mcrypt?

The mcrypt extension is a replacement for the UNIX crypt command. These commands serve as a means to encrypt files on UNIX and Linux systems. The php-mcrypt extension serves as an interface between PHP and mcrypt.

SEE: Securing Linux policy (Tech Pro Research)

Getting mcrypt installed

I'm going to walk you through the process of getting mcrypt installed on Ubuntu Server 16.04. It's not challenging once you have the necessary dependencies added to your system. With mcrypt installed, you can continue with the installation of the software that depends upon this extension.

With that said, how do we install mcrypt? First, open up a terminal window and install the necessary dependencies with the commands:

Once the dependencies have been installed, you can install mcrypt with the command:

And there you go. Mcrypt is now installed. Go back to the process of installing whatever server software that depends upon this extension and you should be good to go.

Not gone, just moved

Don't worry: mcrypt is not gone. It's just been moved out of PHP and into PECL. But for those who have been installing via php-mcrypt for years, this makes for a pretty big shift. Now, instead of being able to install mcrypt with a single command, you have four to deal with. Even so, at least you still have mcrypt available. Eventually, however, I believe the mcrypt dependency will be migrated to another tool (such as OpenSSL).

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