Does a simple `return` in a PHP function simply end the function prematurely?

Question

I have just seen this

// Check to see if the request is a XHR call    
if (request::is_ajax())
{
  // Send the 403 header
  header(\'HTTP/1.1 403 Forbidden\');
          


        

Answer 1

PHP is dynamically typed, so returning no value is equivalent to returning a null value in any type.