get_parent_class
    (PHP 4 )
get_parent_class -- Retrieves the parent class name for object or class
Description
string 
get_parent_class ( mixed obj)
     If obj is an object, returns the name of the
     parent class of the class of which obj is an
     instance.
    
     If obj is a string, returns the name of the parent
     class of the class with that name. This functionality was added in PHP
     4.0.5.
    
     
Example 1. Using get_parent_class() <?php
class dad {
    function dad() {
    // implements some logic
    }
}
class child extends dad {
    function child() {
        echo "I'm " , get_parent_class($this) , "'s son\n";
    }
}
class child2 extends dad {
    function child2() {
        echo "I'm " , get_parent_class('child2') , "'s son too\n";
    }
}
$foo = new child();
$bar = new child2();
?> |  
 
       The output is:
       I'm dad's son
I'm dad's son too  |  
  | 
    
     See also get_class() and
     is_subclass_of().