A Step-by-Step Guide to Implementing Opcode Caching in cPanel for Improved PHP Performance

 Thursday, January 11, 2024

cPanel is a widely used control panel for managing web hosting environments, and optimizing the performance of your PHP applications is crucial for delivering a seamless user experience. One effective way to enhance PHP performance is by utilizing opcode caching. In this article, we will walk you through the process of enabling opcode caching in cPanel.


What is Opcode Caching?

   Opcode caching is a mechanism that stores the compiled form of PHP scripts in memory, reducing the need to recompile the code on each request. This results in faster execution times and improved overall PHP performance. cPanel provides easy-to-use tools to enable opcode caching for your web applications.


Step 1: Log in to cPanel

   Begin by logging in to your cPanel account. You can usually access cPanel by navigating to "https://yourdomain.com/cpanel" and entering your credentials.


Step 2: Locate "PHP Selector" or "Select PHP Version"

   Once logged in, search for the "PHP Selector" or "Select PHP Version" icon in the cPanel dashboard. The naming might vary slightly depending on your hosting provider.


Step 3: Choose the Appropriate PHP Version

   Click on the "PHP Selector" or "Select PHP Version" icon to access the PHP configuration options. Here, you will see a list of available PHP versions for your account. Choose the PHP version that your application requires or that is compatible with your website.


Step 4: Enable Opcode Caching

   Once you have selected the desired PHP version, look for the "Options" tab or a similar option. In this section, you will find a list of various PHP options that can be enabled or disabled. Look for the option related to opcode caching. It might be labeled as "Opcode Cache," "OPcache," or something similar.


Enable the opcode caching option by selecting the appropriate checkbox or radio button. Save your changes to apply the new PHP configuration.


Step 5: Verify Opcode Caching

   After enabling opcode caching, it's important to verify that it is functioning correctly. You can do this by creating a simple PHP file with the phpinfo() function. This function will display detailed information about your PHP configuration, including opcode caching settings.


Create a new file, for example, phpinfo.php, and add the following code:




Upload this file to your web server and access it through a web browser (e.g., https://yourdomain.com/phpinfo.php). Look for a section that indicates opcode caching, such as "Zend OPcache" or "OPcache." If everything is configured correctly, you should see relevant information about opcode caching being enabled.



   By following these steps, you can easily enable opcode caching in cPanel, resulting in improved PHP performance for your web applications. Opcode caching is a valuable tool for optimizing the execution of PHP scripts, ultimately enhancing the overall responsiveness of your website.