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@ 2014-10-21T10:34:09Z

<?php

interface ShipInterface {}

abstract class AbstractShip implements ShipInterface {}

class ShipOnlyAbstract extends AbstractShip {}

class ShipWithInterface extends AbstractShip implements ShipInterface {}


$shipOnlyAbstract	= new ShipOnlyAbstract();
$shipWithInterface	= new ShipWithInterface();

var_dump($shipOnlyAbstract instanceof AbstractShip);
var_dump($shipWithInterface	instanceof AbstractShip);

var_dump($shipOnlyAbstract instanceof ShipInterface);
var_dump($shipWithInterface	instanceof ShipInterface);

var_dump(class_implements($shipOnlyAbstract));
var_dump(class_implements($shipWithInterface));

var_dump(class_parents($shipOnlyAbstract));
var_dump(class_parents($shipWithInterface));

$refShipOnlyAbstract	= new ReflectionClass("ShipOnlyAbstract");
$refShipWithInterface	= new ReflectionClass("ShipWithInterface");

var_dump($refShipOnlyAbstract);
var_dump($refShipWithInterface);

Output for git.master, git.master_jit, rfc.property-hooks: bool(true) bool(true) bool(true) bool(true) array(1) { ["ShipInterface"]=> string(13) "ShipInterface" } array(1) { ["ShipInterface"]=> string(13) "ShipInterface" } array(1) { ["AbstractShip"]=> string(12) "AbstractShip" } array(1) { ["AbstractShip"]=> string(12) "AbstractShip" } object(ReflectionClass)#3 (1) { ["name"]=> string(16) "ShipOnlyAbstract" } object(ReflectionClass)#4 (1) { ["name"]=> string(17) "ShipWithInterface" }

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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