3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class Foo { public function isCallable($bar) { return is_callable($bar); } } $foo = new Foo; $a = function() {}; class Bar { public function __invoke() {} public function log(){} } $b = new Bar; $c = [$b, 'log']; var_dump($foo->isCallable($a)); var_dump($foo->isCallable($b)); var_dump($foo->isCallable($c));
based on MTqrv
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
bool(true) bool(true) bool(true)
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/2Mc7u on line 16
Process exited with code 255.
Output for 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/2Mc7u on line 10
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/2Mc7u on line 10
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/2Mc7u on line 3
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 T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/2Mc7u on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/2Mc7u on line 3
Process exited with code 255.