3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php interface a {} class b implements a {} var_dump( class_parents(new b), new b instanceof a );
Output for 5.0.0 - 7.1.0
array(0) { } bool(true)
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/lPd9q on line 2
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 in /in/lPd9q on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/lPd9q on line 2
Process exited with code 255.