<?php
if ( function_exists('register_sidebar') ){
    register_sidebar(array(
        'before_widget' => '<li id="%1$s" class="widget %2$s">',
        'after_widget' => '</li>',
        'before_title' => '<h2 class="widgettitle">',
        'after_title' => '</h2>',
    ));
}

function wpu_rssDuzenle($content) {
    $content = '<hr /><a href="http://www.wpuzmani.com">Bu yazı WPUzmani.com adresinde bulunmaktadır.</a><hr />'.$content;
    return $content;
}
add_filter('the_excerpt_rss', 'wpu_rssDuzenle');
add_filter('the_content_rss', 'wpu_rssDuzenle');
?>