ecmall二次开发 直接实例化mysql对象

$db = &db();		// 第一步赋值数据库类库,
$db->query(sql);	// 第二步执行mysql 语句;

$user=$db->getrow("select * from ecm_member where user_id=111");
print_r($user);

$user=$db->getcol("select user_id from ecm_member ");
print_r($user);

$user=$db->getall("select user_id from ecm_member ");
foreach ( $user as $row)
{
print_r($row);
}

$user=$db->getone("select count(*) from ecm_member ");
echo $user;

$db->query("update ecm_member  set user_name='aaa' ");

$db->query("insert ecm_member  set user_name='aaa' ");
$user_id = $db->insert_id();
echo $user_id;

function userlist()
{
$db = &db();
$user=$db->getall("select user_id from ecm_member ");
foreach ( $user as $row)
{
echo "用户姓名＝".$row['user_name']." 用户电话＝".$row['tel'];
}
}