Mother/Child

<?php

class Mother {
	function generate_widget() {
		echo "Mother's widget\n";
	}

	function generate_label() {
		echo "Mother's label\n";
	}

	function generate() {
		echo $this->generate_label().' '.$this->generate_widget();
	}
}

class Child extends Mother {
	function generate_label() {
		echo "Child's label\n";
	}
}

$instance = new Child();
$instance->generate();

?>