<?php //无限分类用ul,li.good!!! 使用前，在此调用此函数的地方前面加<div class="nav">,后面加</div>。 function show_subcategory($category_id){ static $nums=0; $nums++; $sql = mysql_query("select * from newsclass where fatherid ='$category_id'"); if(mysql_num_rows($sql)>0){ if ($nums==1) { echo '<ul id=nav>'; }else{ echo '<ul>'; } while($rs = mysql_fetch_array($sql)){ if ($rs['fatherid']==0){ echo '<li>' ."<a href=class.php?id={$rs['id']}>". $rs['classname']."</a>";