Class Type Hints : Class Definition « Class « PHP

1. PHP
2. Class
3. Class Definition

Class Type Hints

 
<?
    class Dog {
            public function do_drool( ) {
                    echo "Sluuuuurp\n";
            }
    }

    class Cat { }

    function drool(Dog $some_dog) {
            $some_dog->do_drool( );
    }
    $poppy = new Dog( );
    drool($poppy);
    
    $poppy = new Cat( );
    drool($poppy);
?>
  
  

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