The Template Method design pattern is used to create a group of subclasses that have to execute a similar group of behaviors.
This design pattern consists of a Template Method, which is an abstract class. Concrete subclasses can override the methods within the abstract class. The Template Method consists of a skeleton of an algorithm; the subclasses can use overriding to change the concrete behavior of the algorithm.
As such, this is an incredibly simple design pattern to use; it encourages loose coupling while also controlling at what points subclassing is permitted. Thus, it is more fine-grained than simple polymorphic behavior.
Consider the following abstraction of a Pasta class:
<?php
abstract class Pasta
{
public function __construct(bool $cheese = true)
{
$this->cheese = $cheese;
}
public function cook()
{
var_dump('Cooked pasta.');
$this->...