PHP · December 19, 2023

Php.ini Configuration: opcache.enable_cli

Php.ini Configuration: opcache.enable_cli

When it comes to optimizing the performance of your PHP applications, the configuration of the PHP interpreter plays a crucial role. One of the key settings in the php.ini file is opcache.enable_cli. In this article, we will explore what this setting does and how it can impact your PHP command-line interface (CLI) scripts.

Understanding opcache.enable_cli

The PHP Opcode Cache, also known as OPcache, is a built-in caching engine that improves the performance of PHP scripts by storing precompiled bytecode in shared memory. This eliminates the need for PHP to recompile the scripts on each request, resulting in faster execution times.

By default, OPcache is enabled for PHP scripts executed through the web server, but it is disabled for CLI scripts. This is where the opcache.enable_cli setting comes into play. When this setting is enabled, OPcache is also enabled for PHP scripts executed from the command line.

The Benefits of Enabling opcache.enable_cli

Enabling opcache.enable_cli can bring several benefits to your PHP CLI scripts:

  • Improved Performance: Just like web server requests, CLI scripts can benefit from the performance boost provided by OPcache. By enabling OPcache for CLI scripts, you can significantly reduce the execution time of your PHP command-line applications.
  • Consistent Behavior: Enabling OPcache for CLI scripts ensures that the behavior of your PHP code remains consistent across different execution environments. This is particularly important if you have shared code that is used both in web server requests and CLI scripts.
  • Reduced Memory Usage: OPcache stores precompiled bytecode in shared memory, which reduces the amount of memory required to execute PHP scripts. By enabling OPcache for CLI scripts, you can optimize memory usage and potentially run more PHP processes simultaneously.

Enabling opcache.enable_cli

To enable opcache.enable_cli, you need to locate your php.ini file. The location of this file can vary depending on your operating system and PHP installation. Once you have found the php.ini file, open it in a text editor and search for the opcache.enable_cli directive.

If the directive is present, make sure it is set to 1 to enable OPcache for CLI scripts. If the directive is not present, you can add it to the file with the following line:

opcache.enable_cli=1

Save the changes to the php.ini file and restart your PHP interpreter for the changes to take effect. You can now enjoy the benefits of OPcache for your PHP CLI scripts.

Conclusion

The opcache.enable_cli setting in the php.ini file allows you to enable OPcache for PHP command-line interface (CLI) scripts. By enabling OPcache for CLI scripts, you can improve the performance, ensure consistent behavior, and reduce memory usage of your PHP command-line applications. Take advantage of this configuration option to optimize the execution of your PHP CLI scripts and enhance the overall performance of your applications.

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