3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class A{} class B extends A{} $b = new B(); var_dump(B instanceof A);
Output for 7.2.0
Warning: Use of undefined constant B - assumed 'B' (this will throw an Error in a future version of PHP) in /in/u2da3 on line 6 bool(false)
Output for 5.0.0 - 7.1.10
Notice: Use of undefined constant B - assumed 'B' in /in/u2da3 on line 6 bool(false)
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/u2da3 on line 6
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/u2da3 on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/u2da3 on line 6
Process exited with code 255.