PHP FastCGI Process Manager (PHP-FPM) is an alternative FastCGI daemon for PHP that allows a website to handle high loads. PHP-FPM maintains pools (workers that can respond to PHP requests) to accomplish this. PHP-FPM is faster than traditional CGI-based methods, such as SUPHP, for multi-user PHP environments. It does not overload a system’s memory with PHP from Apache processes.
- LiteSpeed Web Server uses the lsphp binary. LiteSpeed Web Server does not use the system’s PHP-FPM implementation in WHM’s MultiPHP Manager interface (WHM >> Home >> Software >> MultiPHP Manager).
- To monitor applications that use PHP-FPM, select the Monitor checkbox for the PHP-FPM service for cPanel Daemons service in WHM’s Service Manager interface (WHM >> Home >> Service Configuration >> Service Manager).
RUNNING PHP-FPM WITH CENT-OS 7 AND EASY APACHE 4
On CentOS 7 systems, EasyApache 4 uses the PrivateTmp option with PHP-FPM. EasyApache 4 does this to increase security for temporary files that the running processes in PHP-FPM access. The PrivateTmp option creates special directories in the /tmp directory for each Apache PHP-FPM version your system uses. It’s possible that each time you or the system restarts the PHP-FPM service, the PrivateTmp option will create a new directory.
MORE RESOURCES FOR USING PHP-FPM
These resources can help you fully utilize PHP-FPM:
- Configuration Values of PHP-FPM — This document lists the cPanel PHP-FPM system’s configuration settings and their default values.
- PHP-FPM Code and FileSystem Layout for EasyApache 4 — This document explains how to implement PHP-FPM, the filesystem layout PHP-FPM, and how to adjust PHP versions.
- The php_fpm_config Script — This document explains when and how to use the /scripts/php_fpm_config script.
- PHP-FPM User Pools — This document explains how to create a user pool with PHP-FPM.