3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php interface HumanInterface { } class Human implements HumanInterface { } class Dog { } $human = new Human; echo is_a($human, 'HumanInterface') ? 'true' : 'false';
Output for 5.3.0 - 7.1.0
true
Output for 5.0.0 - 5.2.17
Strict Standards: is_a(): Deprecated. Please use the instanceof operator in /in/uDMCh on line 15 true
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/uDMCh 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/uDMCh on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/uDMCh on line 2
Process exited with code 255.