Magento - Installing Mcrypt on Centos6

Magento - Installing Mcrypt on Centos6 :: Design that fits





magento Notice: Use of undefined constant MCRYPT_BLOWFISH - assumed 'MCRYPT_BLOWFISH' Mcrypt.php on line 67




Magento - Installing Mcrypt on Centos6


Some magento payment gateways require PHP's Mcrypt library in order to work correctly, here's how you set it up in Centos6.


We were migrating a Magento development website over to it's live environment the other day and came across the following errors when accessing a payment gateway:

Notice: Use of undefined constant MCRYPT_BLOWFISH - assumed 'MCRYPT_BLOWFISH' in /lib/Varien/Crypt/Mcrypt.php on line 56

Notice: Use of undefined constant MCRYPT_MODE_ECB - assumed 'MCRYPT_MODE_ECB' in /lib/Varien/Crypt/Mcrypt.php on line 60

To fix this you need to install PHP Mcrypt. On Centos6 you can usually use the following command:
yum install php-mcrypt*

You may find that the EPEL repository doesn't contain the relevant install files, in which case you will have to add new repos that contain the php-mcrypt install as follows:
wget http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
wget http://rpms.famillecollet.com/enterprise/remi-release-6.rpm
sudo rpm -Uvh remi-release-6*.rpm epel-release-6*.rpm
yum update
yum install php-mcrypt*

And then finally, service httpd restart in order to restart your web server.