- class_implements: documentation ( source)
- var_dump: documentation ( source)
- is_subclass_of: documentation ( source)
<?php
interface I
{
public function get_i();
}
class II implements I
{
public function get_i() { return 'II'; }
}
var_dump(is_subclass_of('II', 'I'));
var_dump(class_implements('II'));