Implementing two interfaces with same method names but different signatures

Question

I have two interfaces with same method names. But, both the methods have different signatures. As per my information two interfaces with same method names and same signature will not work. But, in this case signature ( that is number of arguments) are different. Then why program is not working ?

<?php

interface Car {
  public function setModel($name);
}

interface Vehicle {
  public function setModel();
}

class miniCar implements Car, Vehicle {
  private $model;

  public function setModel($name)
  {
    $this -> model = $name;
  }

  public function setModel()
  {
    echo 'do nothing';
  }

}


$obj = new miniCar();

?>

The whole purpose of an interface is to force classes that implements it to have a specific signature, so having two interfaces with different signatures for the same method makes no sense at all, since there is no overloading of methods in PHP. — M. Eriksson, Feb 17 '17 at 07:08

score 2 · Accepted Answer · edited May 23 '17 at 12:09

2

PHP functions cannot be overloaded. They must have different names.

PHP function overloading

edited May 23 '17 at 12:09

Community

1
1

answered Feb 17 '17 at 07:09

E Rullmann

344
3
12

E Rullmann , I was not aware of this fact. Thank you for increasing my knowledge. – WeAreRight Feb 17 '17 at 07:26

Implementing two interfaces with same method names but different signatures

1 Answers1