<ul>
    <?php 
        //截取utf8字符串
        function utf8Substring($str, $from, $len){
            return preg_replace('#^(?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){0,'.$from.'}'.
                '((?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){0,'.$len.'}).*#s','$1',$str);
        }
        //建立数据库链接
        $conn = @mysql_connect("localhost", "数据库用户名", "数据库密码") or die("数据库链接错误");
        //指定要链接的数据库
        mysql_select_db("数据库", $conn);
        //使用UTF-8中文编码;
        mysql_query("set names 'UTF-8'"); 
        //指定版块的所有文章中取10条最新帖子
$SQL="SELECT tid,subject FROM 表名 where fid in (版块1,版块2……) ORDER BY tid DESC LIMIT 0,10";
        $query=mysql_query($SQL);
        //循环显示结果
        while($row=mysql_fetch_array($query)){
                echo "<li><span class=titlel><a class=title title=".$row[subject]." href=http://www.dzbbs.xxx/thread-".$row[tid]."-1-1.html target=_blank>".
                    utf8Substring($row[subject], 0, 40)."</a></span></li>";
            }
//关闭链接
mysql_close($conn);
            ?>
</ul>

//关闭链接
mysql_close($conn);

<li id="relative" class="widget-container">
    <h3 class="widget-title">Relative Posts</h3>
    <ul>
    <?php $tags = wp_get_post_tags($post->ID);
    foreach ($tags as $tagg) {
        $tags_id[] = $tagg->term_id;
    };
    if ($tags) {
        $args=array(
        'tag__in' => $tags_id,
        'post__not_in' => array($post->ID),
        'showposts'=>10,
        'caller_get_posts'=>1
    );
    $my_query = new WP_Query($args);
        if( $my_query->have_posts() ) { while ($my_query->have_posts()) : $my_query->the_post(); ?>
            <li><a href="<?php the_permalink() ?>" title="<?php the_title_attribute(); ?>"><?php the_title(); ?></a></li>
        <?php endwhile; } } ?>
    </ul>
</li>

<li id="random" class="widget-container">
    <h3 class="widget-title">Random Posts</h3>
    <ul>
    <?php $randomPosts = $wpdb->get_results("SELECT ID, post_title FROM $wpdb->posts WHERE ID != $post->ID AND post_status = 'publish' AND post_type = 'post' ORDER BY rand() LIMIT 10");
        foreach($randomPosts as $randomPost) { ?>
            <li><a href="<?php echo get_permalink($randomPost->ID) ?>" title="<?php echo $randomPost->post_title; ?>"><?php echo $randomPost->post_title; ?></a></li>
        <?php } ?>
    </ul>
</li>

   1. <?php if (have_posts()) : while (have_posts()) : the_post(); ?>

   1. <?php $postcnt = 1; ?>

   1. <?php the_content(); ?>

   1. <?php if ($postcnt == 1) : ?>
   2. 广告代码
   3. <?php endif; $postcnt++; ?>

   1. <?php if ($postcnt==1 or $postcnt==2) : ?>

   1. <?php if ($wp_query->current_post == 0) : ?>
   2. 广告代码位置
   3. <?php endif; ?>

add_filter('the_content_more_link','nofollowReadMore' ,0);
function nofollowReadMore($link) {
	return str_replace('class="more-link"', 'class="more-link" rel="nofollow"', $link);
}

(function(){
function SetCookie(c_name,value,expiredays){
	var exdate=new Date();
	exdate.setDate(exdate.getDate()+expiredays);
	document.cookie=c_name+"="+escape(value)+
		((expiredays==null)?"":";expires="+exdate.toGMTString());
}
window['PHC'] = {};
window['PHC']['SetCookie'] = SetCookie;
})();

$('.singleggad .close').click(function(){
	$('.singleggad').slideUp();
	PHC.SetCookie('philna_singlepage_ad','no',2);
	setTimeout(function(){
		alert('This advertisement will no longer display in two days!')},1000);
});

<?php if(!$_COOKIE['philna_singlepage_ad']=='no'):?>
<!--这个放你的广告代码-->
<?php endif;?>

/* 建立一个用于缓存的数组 */
var ajaxpageCache = new Array();
function ajaxpage() {
	/* 取得链接 */
	var nav_a = $('#navigation a');
	/* 注册链接单击事件 */
	nav_a.click(function() {
		/* 获取链接值 */
		var url = $(this).attr('href');
		/* 判断缓存, 缓存中有值则使用缓存数据 */
		if (ajaxpageCache[url]) {
			$('#content').html(ajaxpageCache[url]);
			/* 平滑移动到头部的动画 */
			$.scrollTo('#header', 800);
			/* 重新注册该事件 */
			ajaxpage();
			/* 阻止打开链接 */
			return false;
		}
 
		/* ... 省略的代码 ... */
 
		/* 请求前 */
		var beforeSend = function() {
			/* ... 省略的代码 ... */
		};
 
		/* 请求失败时 */
		var error = function(request) {
			/* ... 省略的代码 ... */
		};
 
		/* 请求成功 */
		var success = function(data) {
			/* 展示(显示返回数据) */
			$('#content').html(data);
			/* 写入缓存 */
			ajaxpageCache[url] = data;
			/* ... 省略的代码 ... */
		};
 
		/* 启动 Ajax 请求 */
		ajax('POST', url, data, beforeSend, error, success);
		/* 阻止打开链接 */
		return false;
	});
}

<?php the_content(); ?>

    <?php if ($postcnt == 1) : ?>
    广告代码
    <?php endif; $postcnt++; ?>
 
如果你还想把广告加在第二篇日志后，那就将第2步中的代码<?php if ($postcnt == 1) : ?> 改成 <?php if ($postcnt == 1 || $postcnt == 2) : ?>

<?php the_content(); ?>

    <?php if ($wp_query->current_post == 0) : ?>
    广告代码
    <?php endif; ?>

define('WP_ALLOW_MULTISITE', true);