So, in order to avoid the application to stop working after the update, the compatibility between the applications and the changes included in the new version must be considered when updating. The comparative chart shows how performance has been almost doubled since PHP 5.įor the next major version, PHP 8, the development seems to be focused on creating new functionalities instead of considerably improving speed.
In this PHP comparator, you can view the differences among the diverse versions of PHP for several applications. This made that applications such as HHVM, which were used to accelerate services, fell into disuse. The arrival of PHP 7 involved a great increase in performance compared to previous versions of PHP.
#Php website meaning code
This contrasts with the usual interpreted execution of PHP where the Zend Engine transforms PHP source code into opcode (bytecode form) which is executed by the virtual CPU of Zend Engine. HHVM (HipHop Virtual Machine) is an open source virtual machine based on the JIT (Just-in-Time) compiler, which serves as an execution engine for PHP and Hack.īy using the JIT compiler principle, HHVM executes PHP or Hack code in intermediate Bytecode HipHop code a code which is later translated into machine code, natively optimized and executed. Until the arrival of PHP 7, the PHP HHVM processor developed by Facebook and released on GitHub with PHP and Zend licences was often used. With the arrival of the last PHP version together with FPM, the performance of this language has been equaled, or even improved, without the need of using HHVM - compatible with most of the functions of PHP 7. HHVM: a former alternative to PHP-FPMĬurrently, HHVM is no longer in use. The fact of having two separate services is key for increasing efficiency.
By using this PHP version as language interpreter, requests are processed through a TCP/IP socket so that the Nginx web server only handles the HTTP requests and PHP-FPM interprets the PHP code. PHP runs as a separated service when using PHP-FPM. Moreover, when using Nginx with PHP-FPM, performance at the level of memory consumption is improved. Nginx has an asynchronous architecture that is much more scalable, based on events. Nginx, as a stable high-performance web server and with a very low consumption of resources, is the perfect match for PHP-FPM. Basic statistics (similar to Apache’s mod_status module).
#Php website meaning download
FastCGI improvements, as fastcgi_finish_request() a special function to stop and download all data while you keep doing a longer process such as video conversions or statistics processing.
Slowlog variable configuration to detect which functions take a longer time to execute than usual.Emergency restart in case of accidental destruction of the opcode cache.Possibility to start workers with different uid/gid/chroot/environment and diverse php.ini it replaces safe_mode.Advanced management that enables to easily stop/start processes.It has additional features which are really useful for high-traffic websites. PHP-FPM is the most popular alternative implementation of PHP FastCGI. 6 Magento with PHP-FPM What is PHP-FPM and its features
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