3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function callable_equals(callable $a, callable $b){ $f = function(callable $callable){ if(is_string($callable)){ $callable = strtolower($callable); if(count($pieces = explode("::", $callable)) == 2){ return [$pieces[0], $pieces[1]]; } return $callable; } $callable[1] = strtolower($callable[1]); return $callable; }; $a = $f($a); $b = $f($b); var_dump($a, $b); return $a === $b; } class Foo{static function bar(){}} var_dump(callable_equals( ['Foo', 'bar'], 'foo::bar' ));
based on 7EffV
Output for 5.4.0 - 7.2.0
array(2) { [0]=> string(3) "Foo" [1]=> string(3) "bar" } array(2) { [0]=> string(3) "foo" [1]=> string(3) "bar" } bool(false)
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/OpbLb on line 8
Process exited with code 255.
Output for 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/OpbLb on line 4
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/OpbLb on line 4
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting ')' in /in/OpbLb 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 ')' in /in/OpbLb on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/OpbLb on line 3
Process exited with code 255.