Sunsetting
Sunsetting a feature is a period of deprecation, where the feature is still available, but is not recommended for usage. It is also displaying a warning message to alert of the disappearance, and offers alternatives.
<?php
//Deprecated: trumpet(): Implicitly marking parameter $i as nullable is deprecated, the explicit nullable type must be used instead
function trumpet(int $i = null) {}
#[Deprecated]
function trample(int $i = null) {}
?>