Install PHPMYADMIN on Debian

1. Download the latest PHPMYADMIN.
2. Put here: /usr/share/phpmyadmin
3. Create phpmyadmin.conf in /etc/apache2/conf.d :

Alias /phpmyadmin /usr/share/phpmyadmin


        Options Indexes FollowSymLinks
        DirectoryIndex index.php

4. /etc/init.d/apache2 restart

Install APC for PHP in CentOS

yum install pcre-devel gcc httpd-devel php-pear
pecl install apc
64bit: restorecon /usr/lib64/php/modules/apc.so
32bit: restorecon /usr/lib/php/modules/apc.so
echo "extension=apc.so" > /etc/php.d/apc.ini
service httpd restart

Solution: Fatal error: Cannot inherit previously-inherited or override constant LEVEL_TOP from interface Swift_Mime_Message in Symfony

There is a bug in APC. You need install the latest version of APC to solve the problem between Swiftmailer and APC: Install the Latest APC on Debian