Knowledgebase

How to install APCu module on Plesk server ?

Connect to the server via SSH.
Install required development packages:
- For .deb-based OS (Ubuntu, Debian):
  
  # apt install plesk-php70-dev zlib1g-dev gcc
- For .rpm-based OS (CentOS, RHEL, CloudLinux):
  
  # yum install plesk-php70-devel zlib-devel gcc
Note: As an example, Plesk PHP 7.0 development package is installed. For a different version of PHP change php70 to the required version, for instance, php56
Install APCu module:
- For Plesk PHP 7.x:
  
  # /opt/plesk/php/7.x/bin/pecl install apcu
- For Plesk PHP 5.x:
  
  # /opt/plesk/php/5.x/bin/pecl install apcu-4.0.11
Enable APCu in PHP configuration:

# echo "extension=apcu.so" > /opt/plesk/php/7.0/etc/php.d/apcu.ini
Restart PHP service and refresh PHP handlers information:

# service plesk-php70-fpm restart

# plesk bin php_handler --reread
Verify that the module is loaded and is working:

# /opt/plesk/php/7.0/bin/php -i | grep apc.enabled
apc.enabled => On => On