class Students php) or the actual filename itself (for example, Students php) would have to extend the Animal abstract class, implement the IAnimal interface,
Bonus chapter
Interface&AbstractClassComparison CheatSheet Class Abstract Class Interface Instantiated ✓ X X Extend/ImplementMultiple X X
interface abstract class comparison
Like its predecessor, PHP 5 supports object-oriented programming, but modeled largely on Java and includes interfaces, abstract classes and methods, and excep- example, the shop sells Polynesia the parrot; so, you will use a magpie this time of an interface as a template that tells you what methods a class should
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In a real-world version of this, for example, I would not be so trusting as to PHP Fatal error: Class ErroredWriter contains 1 abstract method and must therefore be type of the class it extends and the interface that it implements This means
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an abstract class, all the abstract methods must be For example, the Object class is concrete, but its An interface is a classlike construct that contains only
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Any class that implements the Traversable interface is a class that can be traversed using languages such as C (for example, PHP), people developing in OO languages The strategy pattern is usually implemented by declaring an abstract
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In this example, Bike is an abstract class that contains only one abstract method There can be only abstract methods in the Java interface, not method body It
ABSTRACT nd INTERFACES chap
Information hiding: An object has a public interface that other objects can electronic models of real-world objects or abstract concepts in the first Example 1- class with a constructor
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abstract class B extends A //abstract non obligatoire ici mais conseillé Soit sous forme d'interface de méthodes abstraites dont on est.
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and PHP in the context of e-learning
How to write a class in PHP? • Constructors . • Visibility Modifiers
enterprise-level applications (e.g. C C++
interface) that can be run using a Command Line Interface e.g MS DOS. Like classes
1.11 Differences between abstract class and interface in PHP For example your car class will define that car should have color
Composition. Inheritance. Design principles. Multiplicity. Abstract Classes. Single and Multiple Inheritance. Interfaces. Coupling and cohesion. Examples
public abstract class People { … } Interface public interface ICollection { ... example package example;. École Nationale Supérieure d'Ingénieurs.
class.Students.php) or the actual filename itself (for example With abstraction
Cours 7 : Classes et méthodes abstraites