3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php error_reporting(-1); $x = null; var_dump( is_callable([$x, '__invoke']), method_exists($x, '__invoke') );
based on QNBoF
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
bool(false) bool(false)
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[', expecting ')' in /in/9Puut on line 8
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[', expecting ')' in /in/9Puut on line 8
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/9Puut on line 8
Process exited with code 255.