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@ 2013-07-25T19:01:33Z

<?php

class D
{

}

class E extends D
{
    public $D;
}

class F extends D
{
	public $D;
    public $E;
}

class A implements Serializable
{
	public function serialize ()
	{
		$serialized = array();
		foreach($this as $prop => $val) {
			$serialized[$prop] = $val;
		}
		return serialize($serialized);

		//return serialize(get_object_vars($this));
	}

	function unserialize($serialized)
	{
		foreach(unserialize($serialized) as $prop => $val) {
			$this->$prop = $val;
		}
		return true;
	}
}

class B extends A
{
	public $A;
}

class C extends A
{
	public $A;
	public $B;
}

$oC = new C();
$oC->A = new A();
$oC->B = new B();
$oC->B->A = $oC->A;

$oF = new F();
$oF->D = new D();
$oF->E = new E();
$oF->E->D = $oF->D;

$ser = serialize($oC);

echo $ser, "\n";

$ser = serialize($oF);

echo $ser, "\n";

Output for git.master, git.master_jit, rfc.property-hooks: Deprecated: A implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /in/Xa3vX on line 19 Deprecated: B implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /in/Xa3vX on line 41 Deprecated: C implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /in/Xa3vX on line 46 C:1:"C":71:{a:2:{s:1:"A";C:1:"A":6:{a:0:{}}s:1:"B";C:1:"B":18:{a:1:{s:1:"A";r:3;}}}} O:1:"F":2:{s:1:"D";O:1:"D":0:{}s:1:"E";O:1:"E":1:{s:1:"D";r:2;}}

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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