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@ 2014-03-11T22:03:10Z

<?php

abstract class AbstractClass {
    public function __construct() { }

    public function get($property) {
        $rc = new \ReflectionClass($this);
        $p = $rc->getProperty($property);
        $p->setAccessible(true);
        return $p->getValue($this);
    }

    public function set($property, $value) {
        $rc = new \ReflectionClass($this);
        $p = $rc->getProperty($property);
        $p->setAccessible(true);
        $p->setValue($this, $value);
        return $this;
    }
}

abstract class MetadataClass extends AbstractClass {
    private $metadataA;
    private $metadataB;
}

class ActualClass extends MetadataClass {
	private $realField1;
    private $realField2;
}

$ac = new ActualClass();
$ac->set('realField1', 'Hello World!');
echo $ac->get('realField1');

$ac->set('metadataA', 'Hello Metadata!');
echo $ac->get('metadataA');

Output for git.master, git.master_jit, rfc.property-hooks: Hello World! Fatal error: Uncaught ReflectionException: Property ActualClass::$metadataA does not exist in /in/gljqe:15 Stack trace: #0 /in/gljqe(15): ReflectionClass->getProperty('metadataA') #1 /in/gljqe(36): AbstractClass->set('metadataA', 'Hello Metadata!') #2 {main} thrown in /in/gljqe on line 15
Process exited with code 255.

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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