How to execute function when parameter is array or callable? - php

Question

Look this example code:
I'm getting the error:
Fatal error: Uncaught Error: Cannot use object of type Closure as array in C:\xampp\htdocs\dermaquality\test.php:11 Stack trace: #0 C:\xampp\htdocs\dermaquality\test.php(20): test(Object(Closure)) #1 {main} thrown in
$array = array(
'hello' => function() {
echo "HEllo world";
}
);
function test( $func )
{
if (is_callable( $func['hello'] )) {
$func['hello']();
}
else {
$func();
}
}
echo "Executing 1 <br/>";
test( $hello = function() {"Hello world";} );
echo "Executing 2 <br/>";
test( $array['hello'] );
exit;
How can I call $func if $func is function or if $func['hello'] is function?
Thanks.

Answer 1

Problem is in if (is_callable( $func['hello'] )) { because you dont know if $func is an array.. btw you dont put array as parameter in test( $array['hello'] ); you put just function...
function test( $func )
{
if (is_callable($func)) {
$func();
}
else if (is_array($func)){
if(isset($func['hello']) && is_callable($func['hello'])){
$func['hello']();
}else{
// unknown what to call
}
}else{
// unknown what to call
}
}