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run code in 200+ php & hhvm versions
Bugs & Features
<?php $x = 'a:2:{i:0;O:9:"exception":1:{s:17:"'."\0".'Exception'."\0".'string";a:1:{i:0;i:1;}}i:2;a:1:{i:0;r:3;}}'; $x = unserialize($x); for ($i = 0; $i < 5; $i++) { $v[$i] = 'hi'.$i; } echo($x[0]); var_dump($x);
based on HZqLr
Output for 7.0.20, 7.1.5 - 7.2.0
Exception in /in/DeMp7:4 Stack trace: #0 /in/DeMp7(4): unserialize('a:2:{i:0;O:9:"e...') #1 {main}array(2) { [0]=> object(Exception)#1 (7) { ["message":protected]=> string(0) "" ["string":"Exception":private]=> string(98) "Exception in /in/DeMp7:4 Stack trace: #0 /in/DeMp7(4): unserialize('a:2:{i:0;O:9:"e...') #1 {main}" ["code":protected]=> int(0) ["file":protected]=> string(9) "/in/DeMp7" ["line":protected]=> int(4) ["trace":"Exception":private]=> array(1) { [0]=> array(4) { ["file"]=> string(9) "/in/DeMp7" ["line"]=> int(4) ["function"]=> string(11) "unserialize" ["args"]=> array(1) { [0]=> string(87) "a:2:{i:0;O:9:"exception":1:{s:17:"Exceptionstring";a:1:{i:0;i:1;}}i:2;a:1:{i:0;r:3;}}" } } } ["previous":"Exception":private]=> NULL } [2]=> array(1) { [0]=> array(1) { [0]=> int(1) } } }
Output for 7.1.0
Exception in /in/DeMp7:4 Stack trace: #0 /in/DeMp7(4): unserialize('a:2:{i:0;O:9:"e...') #1 {main}array(2) { [0]=> object(Exception)#1 (7) { ["message":protected]=> string(0) "" ["string":"Exception":private]=> string(98) "Exception in /in/DeMp7:4 Stack trace: #0 /in/DeMp7(4): unserialize('a:2:{i:0;O:9:"e...') #1 {main}" ["code":protected]=> int(0) ["file":protected]=> string(9) "/in/DeMp7" ["line":protected]=> int(4) ["trace":"Exception":private]=> array(1) { [0]=> array(4) { ["file"]=> string(9) "/in/DeMp7" ["line"]=> int(4) ["function"]=> string(11) "unserialize" ["args"]=> array(1) { [0]=> string(87) "a:2:{i:0;O:9:"exception":1:{s:17:"Exceptionstring";a:1:{i:0;i:1;}}i:2;a:1:{i:0;r:3;}}" } } } ["previous":"Exception":private]=> NULL } [2]=> array(0) { } }
Output for 7.0.0 - 7.0.6
Notice: Undefined property: Exception::$previous in /in/DeMp7 on line 10 Exception in /in/DeMp7:4 Stack trace: #0 /in/DeMp7(4): unserialize('a:2:{i:0;O:9:"e...') #1 {main}array(2) { [0]=> object(Exception)#1 (6) { ["message":protected]=> string(0) "" ["string":"Exception":private]=> string(98) "Exception in /in/DeMp7:4 Stack trace: #0 /in/DeMp7(4): unserialize('a:2:{i:0;O:9:"e...') #1 {main}" ["code":protected]=> int(0) ["file":protected]=> string(9) "/in/DeMp7" ["line":protected]=> int(4) ["trace":"Exception":private]=> array(1) { [0]=> array(4) { ["file"]=> string(9) "/in/DeMp7" ["line"]=> int(4) ["function"]=> string(11) "unserialize" ["args"]=> array(1) { [0]=> string(87) "a:2:{i:0;O:9:"exception":1:{s:17:"Exceptionstring";a:1:{i:0;i:1;}}i:2;a:1:{i:0;r:3;}}" } } } } [2]=> array(0) { } }
Output for 5.6.28
exception 'Exception' in /in/DeMp7:4 Stack trace: #0 /in/DeMp7(4): unserialize('a:2:{i:0;O:9:"e...') #1 {main}array(2) { [0]=> object(Exception)#1 (7) { ["message":protected]=> string(0) "" ["code":protected]=> int(0) ["file":protected]=> string(9) "/in/DeMp7" ["line":protected]=> int(4) ["trace":"Exception":private]=> array(1) { [0]=> array(4) { ["file"]=> string(9) "/in/DeMp7" ["line"]=> int(4) ["function"]=> string(11) "unserialize" ["args"]=> array(1) { [0]=> string(87) "a:2:{i:0;O:9:"exception":1:{s:17:"Exceptionstring";a:1:{i:0;i:1;}}i:2;a:1:{i:0;r:3;}}" } } } ["previous":"Exception":private]=> NULL ["string":"Exception":private]=> string(110) "exception 'Exception' in /in/DeMp7:4 Stack trace: #0 /in/DeMp7(4): unserialize('a:2:{i:0;O:9:"e...') #1 {main}" } [2]=> array(1) { [0]=> array(1) { [0]=> int(1) } } }
Output for 5.4.44 - 5.4.45, 5.5.28 - 5.5.35, 5.6.12 - 5.6.21
Notice: Undefined property: Exception::$previous in /in/DeMp7 on line 10 exception 'Exception' in /in/DeMp7:4 Stack trace: #0 /in/DeMp7(4): unserialize('a:2:{i:0;O:9:"e...') #1 {main}array(2) { [0]=> object(Exception)#1 (6) { ["message":protected]=> string(0) "" ["code":protected]=> int(0) ["file":protected]=> string(9) "/in/DeMp7" ["line":protected]=> int(4) ["trace":"Exception":private]=> array(1) { [0]=> array(4) { ["file"]=> string(9) "/in/DeMp7" ["line"]=> int(4) ["function"]=> string(11) "unserialize" ["args"]=> array(1) { [0]=> string(87) "a:2:{i:0;O:9:"exception":1:{s:17:"Exceptionstring";a:1:{i:0;i:1;}}i:2;a:1:{i:0;r:3;}}" } } } ["string":"Exception":private]=> string(110) "exception 'Exception' in /in/DeMp7:4 Stack trace: #0 /in/DeMp7(4): unserialize('a:2:{i:0;O:9:"e...') #1 {main}" } [2]=> array(1) { [0]=> array(1) { [0]=> int(1) } } }
Output for 5.3.18 - 5.4.43, 5.5.24 - 5.5.27, 5.6.8 - 5.6.11
exception 'Exception' in /in/DeMp7:4 Stack trace: #0 /in/DeMp7(4): unserialize('a:2:{i:0;O:9:"e...') #1 {main}array(2) { [0]=> object(Exception)#1 (7) { ["message":protected]=> string(0) "" ["string":"Exception":private]=> string(110) "exception 'Exception' in /in/DeMp7:4 Stack trace: #0 /in/DeMp7(4): unserialize('a:2:{i:0;O:9:"e...') #1 {main}" ["code":protected]=> int(0) ["file":protected]=> string(9) "/in/DeMp7" ["line":protected]=> int(4) ["trace":"Exception":private]=> array(1) { [0]=> array(4) { ["file"]=> string(9) "/in/DeMp7" ["line"]=> int(4) ["function"]=> string(11) "unserialize" ["args"]=> array(1) { [0]=> string(87) "a:2:{i:0;O:9:"exception":1:{s:17:"Exceptionstring";a:1:{i:0;i:1;}}i:2;a:1:{i:0;r:3;}}" } } } ["previous":"Exception":private]=> NULL } [2]=> array(1) { [0]=> array(1) { [0]=> int(1) } } }