3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php json_decode(null, true); echo json_last_error_msg();
based on Kr3RZ
Output for 7.0.0 - 7.2.0
Syntax error
Output for 5.5.24 - 5.6.28
No error
Output for 5.3.19 - 5.4.45
Fatal error: Call to undefined function json_last_error_msg() in /in/EDtMG on line 5
Process exited with code 255.