<?php  
add_action( 'add_meta_boxes', 'related_cagir_add' );  
function related_cagir_add()  
{  
    add_meta_box( '1', 'Benzer_Konular', 'related_cagir_and', 'post', 'normal', 'high' );  
}  
?> 
<?php  
function related_cagir_and()  
{?> 
<?php
$search = get_the_title();
$bul = mysql_query("SELECT * FROM wp_posts WHERE MATCH (post_title) AGAINST ('*$search*' IN BOOLEAN MODE) and post_type='post' and post_status='publish' order by ID desc limit 5") or die (mysql_error());

$say=mysql_num_rows($bul);
if($say==0) { 
echo 'no related'; 
} else {          
          
              $i=0;
                    while ($sea=mysql_fetch_array($bul))  { 
            $i++;

            ?>
<li><a href ="/<?php echo $sea['post_name']?>" title="<?php echo $sea['post_title']?>"><?php echo $sea['post_title']?></a></li>

<?php 
if ($i==1)
{ echo " "; 
$i=0; 
} 
} 
} 
<?php   
}  
?>

<?php
} 
add_action( 'publish_post', 'related_cagir_save' ); 
?>