Description:
------------
currently the method_exists documentation at 
http://us3.php.net/method_exists does not define behavior for detecting 
a static method.  Currently in PHP 5.1+ you can detect a static method 
by passing a string containing the class name instead of an instance of 
that class.  The documentation should be updated to make mention of this 
behavior, or the behavior should probably be removed if it's been flying 
under the radar and shouldn't be there.

Reproduce code:
---------------
<?php

class Foo {
   public static function bar () {
       echo 'woo';
   }
}


var_dump(method_exists('Foo', 'bar'));

?>