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@ 2022-10-18T11:31:51Z

<?php

class Foo {
    public $foo;

    public function __wakeup() {
        echo 'In foo', PHP_EOL, PHP_EOL;
        $this->foo = null;
    }
    
    public function __destruct() {
        echo 'Destruct foo', PHP_EOL, PHP_EOL;
    }
}

class Bar {
    public $bar;

    public function __wakeup() {
        echo 'In bar', PHP_EOL, PHP_EOL;
        $this->bar = null;
    }
    
    public function __destruct() {
        echo 'Destruct bar', PHP_EOL, PHP_EOL;
        throw new \Exception('x');
    }
}

$f = new Foo;
$b = new Bar;
$f->foo = $b;
$b->bar = $f;

try {
    var_dump(unserialize(serialize([$f])));
} catch (\Throwable $e) {
    echo $e, PHP_EOL, PHP_EOL;
}
echo "==========", PHP_EOL, PHP_EOL;

try {
    var_dump(unserialize(serialize([$f, $b])));
} catch (\Throwable $e) {
    echo $e, PHP_EOL, PHP_EOL;
}
echo "==========", PHP_EOL, PHP_EOL;
try {
    var_dump(unserialize(serialize([$b, $f])));
} catch (\Throwable $e) {
    echo $e, PHP_EOL, PHP_EOL;
}
echo "==========", PHP_EOL, PHP_EOL;

Output for git.master, git.master_jit, rfc.property-hooks: In bar In foo Destruct bar Exception: x in /in/tnh2R:26 Stack trace: #0 /in/tnh2R(8): Bar->__destruct() #1 [internal function]: Foo->__wakeup() #2 /in/tnh2R(36): unserialize('a:1:{i:0;O:3:"F...') #3 {main} ========== In bar In foo array(2) { [0]=> object(Foo)#3 (1) { ["foo"]=> NULL } [1]=> object(Bar)#4 (1) { ["bar"]=> NULL } } Destruct foo Destruct bar Exception: x in /in/tnh2R:26 Stack trace: #0 /in/tnh2R(43): Bar->__destruct() #1 {main} ========== In foo In bar array(2) { [0]=> object(Bar)#5 (1) { ["bar"]=> NULL } [1]=> object(Foo)#4 (1) { ["foo"]=> NULL } } Destruct bar Destruct foo Exception: x in /in/tnh2R:26 Stack trace: #0 /in/tnh2R(49): Bar->__destruct() #1 {main} ========== Destruct foo Destruct bar Fatal error: Uncaught Exception: x in /in/tnh2R:26 Stack trace: #0 [internal function]: Bar->__destruct() #1 {main} thrown in /in/tnh2R on line 26
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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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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