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run code in 150+ php & hhvm versions
Bugs & Features
<?php class Foo { private $bar = 'baz'; } class FooBar extends Foo { public function __sleep() { return array('bar'); } } class FooBarBaz extends Foo { public function __sleep() { return array("\0Foo\0bar"); } } serialize(new Foo()); serialize(new FooBar()); serialize(new FooBarBaz());
Output for 5.5.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Notice: serialize(): "bar" returned as member variable from __sleep() but does not exist in /in/PdBtd on line 19
Output for 5.0.0 - 5.0.4, 5.1.0 - 5.4.45
Output for 5.0.5

Process exited with code 139.
Output for 4.4.2 - 4.4.9
<br /> <b>Parse error</b>: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in <b>/in/PdBtd</b> on line <b>5</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
<br /> <b>Parse error</b>: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in <b>/in/PdBtd</b> on line <b>5</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.4
<br /> <b>Parse error</b>: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in <b>/in/PdBtd</b> on line <b>5</b><br />
Process exited with code 255.