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The Symfony Polyfill / PHP 7.3 Component
This component provides some PHP 7.3 features to applications using earlier PHP versions.
Installation
1
$ composer require symfony/polyfill-php73Note
If you install this component outside of a Symfony application, you must
require the vendor/autoload.php file in your code to enable the class
autoloading mechanism provided by Composer. Read
this article for more details.
Usage
Once this component is installed in your application, you can use the following functions, no matter if your PHP version is earlier than PHP 7.3.