Polyfills are PHP implementations of functions supported by KPHP natively.
Without polyfills, your code can be compiled, but can't be run by plain PHP.
-
Run
composer require vkcom/kphp-polyfills -
If it's your first installed package, call composer autoload:
require_once '.../vendor/autoload.php';- You are done! All KPHP functions would work on plain PHP.