The Symfony Polyfill / PHP 7.3 ComponentEdit this page
Warning: You are browsing the documentation for Symfony 4.0, which is no longer maintained.
Read the updated version of this page for Symfony 6.2 (the current stable version).
This component provides some PHP 7.3 features to applications using earlier PHP versions.
$ composer require symfony/polyfill-php73
Alternatively, you can clone the https://github.com/symfony/polyfill-php73 repository.
If you install this component outside of a Symfony application, you must
vendor/autoload.php file in your code to enable the class
autoloading mechanism provided by Composer. Read
this article for more details.