Cover of the book Symfony 5: The Fast Track

Symfony 5: The Fast Track is the best book to learn modern Symfony development, from zero to production. +300 pages showcasing Symfony with Docker, APIs, queues & async tasks, Webpack, SPAs, etc.

Polyfill PHP 5.4 component

Provides functions unavailable in releases prior to PHP 5.4.

Installation

$ composer require symfony/polyfill-php54