3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class Foo { private $foo; public function __debuginfo() { return ['foo' => 'bar']; } public function __sleep() { $this->herp = 'derp'; return ['herp', 'merp']; } } var_dump(json_encode(new Foo()));
based on OSIll
Output for 5.4.0 - 7.2.0
string(2) "{}"
Output for 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/Yh1oT on line 6
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/Yh1oT on line 6
Process exited with code 255.
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/Yh1oT on line 4
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/Yh1oT on line 4
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/Yh1oT on line 4
Process exited with code 255.