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run code in 150+ php & hhvm versions
Bugs & Features
<?php class Foo { protected $bar = 1; } $foo = new Foo; $s = 'O:3:"Foo":1:{s:6:"\0*\0baz";i:1;}'; var_dump($s); $foo = unserialize($s); var_dump($foo);
based on e5bXm
Output for 5.0.3 - 5.6.28, 7.0.0 - 7.1.0
string(33) "O:3:"Foo":1:{s:6:"\0*\0baz";i:1;}" Notice: unserialize(): Error at offset 24 of 33 bytes in /in/glBls on line 8 bool(false)
Output for hhvm-3.12.0
string(33) "O:3:"Foo":1:{s:6:"\0*\0baz";i:1;}" Notice: Unable to unserialize: [O:3:"Foo":1:{s:6:"\0*\0baz";i:1;}]. Expected '"' but got 'a'. in /in/glBls on line 8 bool(false)
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.0.0 - 5.0.2
string(33) "O:3:"Foo":1:{s:6:"\0*\0baz";i:1;}" Notice: unserialize(): Error at offset 26 of 33 bytes in /in/glBls on line 8 bool(false)
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/glBls on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/glBls on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/glBls on line 3
Process exited with code 255.