$db = $this->getAdapter();
echo $videoArray=$db->fetchOne("SELECT count(*) FROM m_video WHERE `is_jian` = :title",array('title' => '1'));
fetchPairs用法
fetchPairs($sql, $bind = array())
取回一个相关数组,第一个字段值为码(id),第二个字段为值(name)
返回：Array( [1] => 十二生肖奇缘 [2] => 桃花运)，1,2:为id字段。
$db = $this->getAdapter();
$videoArray=$db->fetchPairs("SELECT id, name FROM m_video WHERE is_jian = :title",array('title' => '1'));
fetchRow用法
fetchRow($where = null, $order = null)
只取回结果集的第一行
$videoArray=$this->fetchRow("is_jian=1 and is_guo=1", 'id DESC')->toArray();
query用法
//function query($sql, $bind = array())
$db = $this->getAdapter();
$result = $db->query('SELECT * FROM `m_video`');
//$result = $db->query('SELECT * FROM `m_video` WHERE `name` = ? AND id = ?',array('十二生肖奇缘', '1'));
//$result->setFetchMode(Zend_Db::FETCH_OBJ);//FETCH_OBJ为默认值,FETCH_NUM,FETCH_BOTH
//while ($row = $result->fetch()) {
// echo $row['name'];
//}
//$rows = $result->fetch();
//$rows = $result->fetchAll();
//$obj = $result->fetchObject();//echo $obj->name;
// echo $Column = $result->fetchColumn(0);//得到结果集的第一个字段，比如0为id号,用于只取一个字段的情况
print_r($rows);
select用法
$db = $this->getAdapter();
$select = $db->select();
$select->from('m_video', array('id','name','clicks'))
->where('is_guo = :is_guo and name = :name')
->order('name')// 按什么排序列，参加为数组(多个字段)或字符串(一个字段)
->group()//分组
->having()//分组查询数据的条件
->distinct()// 无参数，去掉重复的值。有时候与groupby返回的结果一样
->limit(10);
// 读取结果使用绑定的参数
$params = array('is_guo' => '1','name'=>'十二生肖奇缘');
//$sql = $select->__toString();//得到查询语句，可供调试
$result = $db->fetchAll($select,$params);
执行select的查询
$stmt = $db->query($select);
$result = $stmt->fetchAll();
或用
$stmt = $select->query(); $result = $stmt->fetchAll();
如果直接用
$db->fetchAll($select)
结果一样
多表联合查询用法
$db = $this->getAdapter();
$select = $db->select();
$select->from('m_video', array('id','name','pic','actor','type_id','up_time'))
->where('is_guo = :is_guo and is_jian = :is_jian')
->order('up_time')
->limit(2);
$params = array('is_guo' => '1','is_jian'=>'1');
$select->join('m_type', 'm_video.type_id = m_type.t_id', 'type_name');//多表联合查询
$videoArray = $db->fetchAll($select,$params);
