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For PHP applications which have a contain a lot of PHP code like the WebApp or Z-Push it is highly recommended to enable opcache, as this can speed up the loading of pages substantially and lower the web server load as well.


Centos with SCL

To enable opcache on CentOs CentOS 6 or CentOS 7 with httpd24-httpd and rh-php56 installed.


Code Block
# service apache2 restart

Further information

For more information about PHP opcache please visit at


For older PHP versions you might look into to following opcode caching modules, which might be available for included in your Linux Distribution.