<?php
 
                                if ( has_post_thumbnail()) :
 
                                   the_post_thumbnail( 'list', array('class' => 'fl-right', 'alt' => ''.get_the_title().'', 'title' => ''.get_the_title().'' ));
 
                                elseif (get_post_meta($post->ID, 'resim', true) != '') :
 
                                   echo '<img class="fl-right" src="'.get_post_meta($post->ID, 'resim', true).'" width="196" height="106" alt="'.get_the_title().'" />';
 
                                <b>else : 
 
                                   echo '<img class="fl-right" src="http://www.site.com/resim.jpg" width="196" height="106" alt="'.get_the_title().'" />';
 
                                endif;</b>
 
                             ?>