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<?php $x = 'a:2:{i:0;O:9:"exception":2:{s:16:"'."\0".'Exception'."\0".'trace";s:4:"test";s:17:"'."\0".'Exception'."\0".'string";R:2;}i:1;R:2;}'; $x = unserialize($x); var_dump($x);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Uncaught TypeError: Cannot assign string to property Exception::$trace of type array in /in/89krN:4 Stack trace: #0 /in/89krN(4): unserialize('a:2:{i:0;O:9:"e...') #1 {main} thrown in /in/89krN on line 4
Process exited with code 255.
Output for 5.6.25 - 5.6.38, 7.0.10 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
array(2) { [0]=> &object(Exception)#1 (5) { ["message":protected]=> string(0) "" ["code":protected]=> int(0) ["file":protected]=> string(9) "/in/89krN" ["line":protected]=> int(4) ["previous":"Exception":private]=> NULL } [1]=> &object(Exception)#1 (5) { ["message":protected]=> string(0) "" ["code":protected]=> int(0) ["file":protected]=> string(9) "/in/89krN" ["line":protected]=> int(4) ["previous":"Exception":private]=> NULL } }
Output for 5.4.44 - 5.4.45, 5.5.28 - 5.5.38, 5.6.12 - 5.6.24, 7.0.0 - 7.0.9
array(2) { [0]=> &object(Exception)#1 (4) { ["message":protected]=> string(0) "" ["code":protected]=> int(0) ["file":protected]=> string(9) "/in/89krN" ["line":protected]=> int(4) } [1]=> &object(Exception)#1 (4) { ["message":protected]=> string(0) "" ["code":protected]=> int(0) ["file":protected]=> string(9) "/in/89krN" ["line":protected]=> int(4) } }
Output for 5.4.0 - 5.4.43, 5.5.0 - 5.5.27, 5.6.0 - 5.6.11
array(2) { [0]=> &object(Exception)#1 (7) { ["message":protected]=> string(0) "" ["string":"Exception":private]=> *RECURSION* ["code":protected]=> int(0) ["file":protected]=> string(9) "/in/89krN" ["line":protected]=> int(4) ["trace":"Exception":private]=> string(4) "test" ["previous":"Exception":private]=> NULL } [1]=> &object(Exception)#1 (7) { ["message":protected]=> string(0) "" ["string":"Exception":private]=> *RECURSION* ["code":protected]=> int(0) ["file":protected]=> string(9) "/in/89krN" ["line":protected]=> int(4) ["trace":"Exception":private]=> string(4) "test" ["previous":"Exception":private]=> NULL } }

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