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@ 2014-10-21T18:56:39Z

<?php
class InCommon {
	private $baz = 'foo';
	public function out($pref){
		echo "\n".$pref.'::$baz = '.$this->baz;
	}
}

class Foo extends InCommon {
	public function peek($target, $pref){ echo "\n".'peek @'.$pref.'::$baz = '.$target->baz; }
}
class Bar extends InCommon {
	public function peek($target, $pref){
		echo "\n".'peek @'.$pref.'::$baz = '.$target->baz;
	}
	public function mess($target){
		$target->baz = 'cats';
	}
}
$foo = new Foo();
$bar = new Bar();

echo "Messing with variable";
$bar->mess($foo); // bar messes with foo's baz, which should be private

echo "\nFoo looks at its own $baz:";
$foo->out('Foo'); // foo looks at its own baz, which remains unchanged
echo "\nBar looks at Foo's $baz:";
$bar->peek($foo, 'Foo'); // yet when bar looks at foo's baz (which is shouldn't see) we get the change from above

echo "\n\nFoo can't look at Bar's $baz";
$foo->peek($bar, 'Bar');

Output for git.master, git.master_jit, rfc.property-hooks: Messing with variable Deprecated: Creation of dynamic property Foo::$baz is deprecated in /in/c3Q9E on line 17 Warning: Undefined variable $baz in /in/c3Q9E on line 26 Foo looks at its own : Foo::$baz = foo Warning: Undefined variable $baz in /in/c3Q9E on line 28 Bar looks at Foo's : peek @Foo::$baz = cats Warning: Undefined variable $baz in /in/c3Q9E on line 31 Foo can't look at Bar's Warning: Undefined property: Bar::$baz in /in/c3Q9E on line 10 peek @Bar::$baz =

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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