3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(null ?? foo());
based on GIRTB
Output for 7.0.0 - 7.3.0
Fatal error: Uncaught Error: Call to undefined function foo() in /in/tdoMU:3 Stack trace: #0 {main} thrown in /in/tdoMU on line 3
Process exited with code 255.
Output for hhvm-3.22.0
Fatal error: Uncaught Error: Call to undefined function foo() in /in/tdoMU:-1 Stack trace: #0 {main}
Process exited with code 255.
Output for hhvm-3.11.1 - 3.21.3
Fatal error: Uncaught Error: Call to undefined function foo() in /in/tdoMU:3 Stack trace: #0 {main}
Process exited with code 255.
Output for hhvm-3.10.1
Fatal error: syntax error, unexpected '?' in /in/tdoMU on line 3
Process exited with code 255.
Output for 5.3.18 - 5.6.38
Parse error: syntax error, unexpected '?' in /in/tdoMU on line 3
Process exited with code 255.