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<?php $x = 'a:2:{i:0;O:9:"exception":1:{s:17:"'."\0".'Exception'."\0".'string";a:0:{}}i:1;R:3;}'; $y = unserialize($x); //for($i = 0; $i < 5; $i++) { // $v[$i] = 'hi'.$i; //} unset($y[1]); var_dump($y);
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: Cannot assign array to property Exception::$string of type string in /in/6k6ML:4 Stack trace: #0 /in/6k6ML(4): unserialize('a:2:{i:0;O:9:"e...') #1 {main} thrown in /in/6k6ML on line 4
Process exited with code 255.
Output for 5.6.28, 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
array(1) { [0]=> object(Exception)#1 (6) { ["message":protected]=> string(0) "" ["code":protected]=> int(0) ["file":protected]=> string(9) "/in/6k6ML" ["line":protected]=> int(4) ["trace":"Exception":private]=> array(1) { [0]=> array(4) { ["file"]=> string(9) "/in/6k6ML" ["line"]=> int(4) ["function"]=> string(11) "unserialize" ["args"]=> array(1) { [0]=> string(69) "a:2:{i:0;O:9:"exception":1:{s:17:"Exceptionstring";a:0:{}}i:1;R:3;}" } } } ["previous":"Exception":private]=> NULL } }
Output for 5.5.28 - 5.5.35, 5.6.12 - 5.6.21, 7.0.0 - 7.0.6
array(1) { [0]=> object(Exception)#1 (5) { ["message":protected]=> string(0) "" ["code":protected]=> int(0) ["file":protected]=> string(9) "/in/6k6ML" ["line":protected]=> int(4) ["trace":"Exception":private]=> array(1) { [0]=> array(4) { ["file"]=> string(9) "/in/6k6ML" ["line"]=> int(4) ["function"]=> string(11) "unserialize" ["args"]=> array(1) { [0]=> string(69) "a:2:{i:0;O:9:"exception":1:{s:17:"Exceptionstring";a:0:{}}i:1;R:3;}" } } } } }
Output for 5.5.24 - 5.5.27, 5.6.8 - 5.6.11
array(1) { [0]=> object(Exception)#1 (7) { ["message":protected]=> string(0) "" ["string":"Exception":private]=> array(0) { } ["code":protected]=> int(0) ["file":protected]=> string(9) "/in/6k6ML" ["line":protected]=> int(4) ["trace":"Exception":private]=> array(1) { [0]=> array(4) { ["file"]=> string(9) "/in/6k6ML" ["line"]=> int(4) ["function"]=> string(11) "unserialize" ["args"]=> array(1) { [0]=> string(69) "a:2:{i:0;O:9:"exception":1:{s:17:"Exceptionstring";a:0:{}}i:1;R:3;}" } } } ["previous":"Exception":private]=> NULL } }

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