說明：本次開發使用的thinkcmf

1.Thinkphp 中 隨機取資料條數

1. M('tableName')->order('rand()')->limit(3)->select()

$data = M("terms")->select();

			  	function getTree($data, $pId){
					$tree = '';
					foreach($data as $k => $v){
					   if($v['parent'] == $pId){         //父親找到兒子
					    $v['parent'] = getTree($data, $v['term_id']);
					    $tree[] = $v;
					    //unset($data[$k]);
					   }
					}
					return $tree;
				}
					$tree = getTree($data, 0);
					// dump($tree);die();
				$this->assign('tree',$tree);
 

<volist name="tree" id="vo">
            <ul>
                <p class="options_header"><a href="">{$vo.name}</a></p>
                <volist name="vo['parent']" id="sub">
                <li><a href="">{$sub.name}</a></li>
                </volist>
            </ul>
            </volist>