The (gs) Grid-Service comes with support for the Zend Optimizer and is fully ready to use when you get the server. As this is a very flexible system, users may choose to implement custom directives through the means of a custom php.ini file. In such cases as these, the Zend Optimizer functionality will break. This article is for the purpose of properly adding the correct directives to a user's custom php.ini file to make the Zend Optimizer libraries once again load properly and function. 

• SSH access to your server.
• Your serveradmin@domain.com password
  
• The ability to use command line text editors like 'vi'

Instructions:

1. Log in to your (gs) Grid-Service via SSH (KB: (gs) Enabling SSH Access)
   
   
2. Get a list of all PHP versions installed on the system:
   
   

   ls /usr/local/ | grep php- 

   
   
   Make a note of the specific version you need the Zend Optimizer installed for. You may check the right version of PHP to use by using the following URLs:
   
   PHP4: http://s#####.gridserver.com/gs-bin/phpinfo.php4
   PHP5: http://s#####.gridserver.com/gs-bin/phpinfo.php5
   
   Where s#####.gridserver.com is replaced by your actual site number.
   
   
3. Open your php.ini file for editing (KB: (gs) HOWTO: edit php.ini). Add these lines:
   
   For PHP4 (Replace the x.x-x with the version number you want to use.)
   

   zend_optimizer.optimization_level=15
   zend_extension="/usr/local/php-4.x.x-x/zend/ZendOptimizer.so" 

   
   For PHP5 (Replace the x.x-x with the version number you want to use.)

   zend_optimizer.optimization_level=15
   zend_extension="/usr/local/php-5.x.x-x/zend/ZendOptimizer.so" 

   
   Save the changes and quit.
   
   
4. You should now have Zend Optimizers installed for both PHP4 and PHP5. There is no need for an Apache restart.
   
   
5. Check your php info from the AccountCenter to verify Zend has been enabled.

Revisions:

07-20-2009: Minor Fixes