ReflectionClass::isSubclassOf
  Checks if a subclass
  
 
  Description
  
   public bool ReflectionClass::isSubclassOf
    ( string $class
   )
  
  
 
  Parameters
  
   
    
     - 
class 
     - 
      
       The class name being checked against.
      
      
    
   
  
  
 
  Return Values
  
   Returns TRUE on success or FALSE on failure.
  
  
 
  See Also
  
   
    -  ReflectionClass::isInterface
 
    -  ReflectionClass::implementsInterface
 
    - is_subclass_of
 
    - get_parent_class