Why use PHP 8.1?

The website project in the Pageface Store, developed using the LAMP stack, now fully supports PHP 8.1. We spent a significant amount of time upgrading the necessary third-party modules and PHP libraries for the project. The main reason for this choice is the performance improvement that PHP 8.1 offers compared to previous versions.

PHP 8.1 is a major update to the main version of the PHP language. In addition to bringing new features and functionalities, the biggest highlight is the performance improvement. For more information, please refer to the official PHP release announcement.

PHP 8.1 is a major update of the PHP language.
It contains many new features, including enums, readonly properties, first-class callable syntax, fibers, intersection types, performance improvements and more.

PHP8.1 Performance Improvements

 Symfony Demo App request time
25 consecutive runs, 250 requests (sec)
(less is better)

The result (relative to PHP 8.0):

• 23.0% Symfony Demo speedup
• 3.5% WordPress speedup

Performance related features in PHP 8.1:

• JIT backend for ARM64 (AArch64)
• Inheritance cache (avoid relinking classes in each request)
• Fast class name resolution (avoid lowercasing and hash lookup)
• timelib and ext/date performance improvements
• SPL file-system iterators improvements
• serialize/unserialize optimizations
• Some internal functions optimization (get_declared_classes(), explode(), strtr(), strnatcmp(), dechex())
• JIT improvements and fixes