Question

Currently I’m doing it like this:

$classes = get_declared_classes();
$models = array();

foreach($classes as $class){
  $class = new \ReflectionClass($class);
  if($class->isSubclassOf('\\App\\Model'))
    $models[] = $class;
}

But as you see I’m creating a reflection object for each class, in order to find out which one is a child of my “model” class.

Is there a faster way to search for my child classes?

Answer 1

Try

is_subclass_of($class, '\\App\\Model', true); // or is_a()

Pop last argument if you get notices/warnings. The 3rd one says 1st argument is a string and should not be directly rejected (function expects objects by default).

is_subclass_of($class, '\\App\\Model'); // or is_a()

Works for me!