spl_autoload_functions
    (PHP 5 >= 5.1.0RC1)
spl_autoload_functions -- 
     Return all registered __autoload() functions
    
Description
array 
spl_autoload_functions ( void  )
     This function returns an array of all registered __autoload functions.
     If the autoload stack is not activated then the return value is false.
     If no function is registered the return value will be an empty array.