3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function foo(Callable $a) { var_dump($a); } foo('var_dump'); foo(NULL);
based on LK6cl
Output for 7.0.0 - 7.1.0
string(8) "var_dump" Fatal error: Uncaught TypeError: Argument 1 passed to foo() must be callable, null given, called in /in/7hB4e on line 7 and defined in /in/7hB4e:2 Stack trace: #0 /in/7hB4e(7): foo(NULL) #1 {main} thrown in /in/7hB4e on line 2
Process exited with code 255.
Output for hhvm-3.10.0 - 3.12.0
string(8) "var_dump" Catchable fatal error: Argument 1 passed to foo() must be an instance of callable, null given in /in/7hB4e on line 4
Process exited with code 255.
Output for 5.4.0 - 5.6.28
string(8) "var_dump" Catchable fatal error: Argument 1 passed to foo() must be callable, null given, called in /in/7hB4e on line 7 and defined in /in/7hB4e on line 2
Process exited with code 255.
Output for 5.2.0 - 5.3.29
Catchable fatal error: Argument 1 passed to foo() must be an instance of Callable, string given, called in /in/7hB4e on line 6 and defined in /in/7hB4e on line 2
Process exited with code 255.
Output for 5.1.0 - 5.1.6
Fatal error: Argument 1 passed to foo() must be an object of class Callable, called in /in/7hB4e on line 6 and defined in /in/7hB4e on line 2
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Fatal error: Argument 1 must be an object of class Callable in /in/7hB4e on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting ')' in /in/7hB4e 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, expecting ')' in /in/7hB4e on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/7hB4e on line 2
Process exited with code 255.