3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $x = new __PHP_Incomplete_Class(); var_dump(is_object($x)); class Foo extends __PHP_Incomplete_Class { } $y = new Foo(); var_dump(is_object($y)); class Bar extends stdClass { } $z = new Bar(); var_dump(is_object($z));
based on bvYi0
Output for 5.0.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
bool(false) bool(true) bool(true)
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.3.11 - 4.4.9
Fatal error: Unknown(): The script tried to execute a method or access a property of an incomplete object. Please ensure that the class definition unknown of the object you are trying to operate on was loaded _before_ the session was started in /in/JF6QT on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.10
Fatal error: Unknown(): The script tried to execute a method or access a property of an incomplete object. Please ensure that the class definition <b>unknown</b> of the object you are trying to operate on was loaded _before_ the session was started in /in/JF6QT on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Unknown(): The script tried to execute a method or access a property of an incomplete object. Please ensure that the class definition <b>unknown</b> of the object you are trying to operate on was loaded _before_ the session was started in /in/JF6QT on line 3