Self
self is one of the three special keywords that are used to access properties or methods from inside the class definition. It relates to the current written class.
self is traditionally written lower-case, although it is case-insensitive. self is a PHP keyword.
<?php
class Elephpant {
private const HABITAT = 1;
function trumpet() {
// same as \Elephpant::C;
return self::C;
}
}
?>