Emlog博客调用分类文章图文显示的方法

模板的module.php文件中放入如下代码：

<pre style="overflow:auto" ;class="prettyprint lang-php linenums"><?php //调用分类文章，图文显示
function sheli_tw($sort, $num){$db = MySql::getInstance();
$sql = "SELECT gid,title,date,content,sortid,views,comnum FROM ".DB_PREFIX."blog WHERE sortid=".$sort." AND hide='n' ORDER BY date DESC LIMIT 0,$num";
$go = $db->query($sql);while($row = $db->fetch_array($go)){
$img_url = TEMPLATE_URL.'images/sheli.jpg';//无图片时显示
if(pic_thumb($row['content'])){$img_url = pic_thumb($row['content']);//查找正文第一张图片
}elseif(picthumb($row['gid'])){$img_url = picthumb($row['gid']);//查找附件第一张图片
}else{$img_url;}?>
<li><p><a href="<?php echo Url::log($row['gid']);?>"><img src="<?php echo $img_url;?>" /></p><span><?php echo $row['title'];?></a></span></li>
<?php }}function picthumb($blogid) {$db = MySql::getInstance();$sql = "SELECT FROM ".DB_PREFIX."attachment WHERE blogid=".$blogid." AND (filepath LIKE '%jpg' OR filepath LIKE '%gif' OR filepath LIKE '%png') ORDER BY aid ASC LIMIT 0,1";$imgs = $db->query($sql);while($row = $db->fetch_array($imgs)){$pict.= ''.BLOG_URL.substr($row['filepath'],3,strlen($row['filepath'])).'';}return $pict;}function pic_thumb($content){preg_match_all("/\<img.?src\=\"(.?)\"[^>]>/i", $content, $img);$imgsrc = !empty($img[1]) ? $img[1][0] : '';if($imgsrc):return $imgsrc;endif;}?>
调用方式：<?php sheli_tw(1,10);?>；其中1表示分类id，10表示数量