Configuring PHP Opcache method in CentOS system

Configuring PHP Opcache method in CentOS system

When building a website or application, optimizing PHP performance is a crucial step. PHP Opcache, as a built-in optimization function after PHP 5.5 version, can significantly improve the execution efficiency of PHP code. Configuring PHP Opcache and enabling it in the CentOS system can greatly improve the performance and response speed of the website. The following will introduce the specific method of configuring PHP Opcache in CentOS system to help you speed up website access.

First, make sure your CentOS system has PHP and Opcache extensions installed. You can check the installation of PHP and Opcache with the following command:

php -v

If you have installed PHP and Opcache extensions, you will see the version information of PHP and detailed information about the Opcache extension. If the Opcache extension is not installed, you can install it using the following command:

sudo yum install php-opcache

After the installation is complete, you need to edit the PHP configuration file php.ini to enable the Opcache extension. You can use a text editor to open the php.ini file:

sudo vi /etc/php.ini

Find the following line in the php.ini file and uncomment it (remove the preceding semicolon):

zend_extension=opcache.so
opcache.enable=1
opcache.enable_cli=1
opcache.memory_consumption=128
opcache.interned_strings_buffer=8
opcache.max_accelerated_files=4000
opcache.validate_timestamps=1
opcache.revalidate_freq=60
opcache.fast_shutdown=1

The above configuration items are Some common Opcache parameter settings can be adjusted according to your needs. Once setup is complete, save and close the php.ini file.

Next, restart the PHP service to make the configuration take effect:

sudo systemctl restart php-fpm

Now, you have successfully configured PHP Opcache in the CentOS system. You can check the status of Opcache through the following command:

php -r 'var_dump(opcache_get_status());'

The above command will output detailed information about Opcache, including cache hit rate, cache memory usage, etc. If everything is fine, you will see that Opcache is already running and optimizing your PHP code.

By configuring PHP Opcache, you can not only improve the response speed and performance of the website, but also reduce the server load and resource consumption. I hope the above method can help you successfully configure PHP Opcache in CentOS system and make your website more efficient and stable.

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