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@ 2024-09-01T17:35:06Z

<?php

class PropertyHooks
{
    public ?string $backedGetOnly {
        get => $this->backedGetOnly;
    }

    public ?string $backedSetOnly {
        set (?string $value) {
            $this->backedSetOnly = $value;
        }
    }

    public ?string $backedGetAndSet {
        set (?string $value) {
            $this->backedGetAndSet = $value;
        }

        get => $this->backedGetAndSet;
    }
}

$propertyHooks = new PropertyHooks();

$reflectionProperty = new ReflectionProperty($propertyHooks, 'backedGetOnly');

$reflectionProperty->isInitialized($propertyHooks); // returns true - I would expect false
                                      // backSetOnly reports  false
                                      // backedGetAndSet reports true - I would also expect false

if ($reflectionProperty->isInitialized($propertyHooks)) {
    $reflectionProperty->getRawValue($propertyHooks); // Uncaught exception 'Error' with message Typed property PropertyHooks::$backedGetOnly must not be accessed before initialization
}

Output for git.master_jit, git.master: Fatal error: Uncaught Error: Typed property PropertyHooks::$backedGetOnly must not be accessed before initialization in /in/RgWO8:33 Stack trace: #0 [internal function]: PropertyHooks->$backedGetOnly::get() #1 /in/RgWO8(33): ReflectionProperty->getRawValue(Object(PropertyHooks)) #2 {main} thrown in /in/RgWO8 on line 33
Process exited with code 255.
Output for rfc.property-hooks: Fatal error: Uncaught Error: Typed property PropertyHooks::$backedGetOnly must not be accessed before initialization in /in/RgWO8:33 Stack trace: #0 /in/RgWO8(33): ReflectionProperty->getRawValue(Object(PropertyHooks)) #1 {main} thrown in /in/RgWO8 on line 33
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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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