Question

格式应如下所示，用户名数组和每个用户名中酒店表中的酒店名称及其相应的评级，可从评级表中提取。但是，我需要加入users表以链接订单列表以从中提取用户名。

评级列表代码

                     $books =  array(

                "phil" => array("Sandman"=> 2.5, "Jurys Inn Newcastle" => 
                      3.5,
                                "Premier Inn Newcastle" => 3, "Sunderland 
           Marrtiot" => 4,
                                "Travelodge Sunderland" => 2.5,
                                "StayBridge Suits London" => 3.5),

                "sameer" => array("Apex London Wall" => 2.5, "Jurys Inn Newcastle" => 3.5,
                                  "Mercure Leeds parkaway wilds" => 3, "Sunderland Marrtiot" => 3.5,
                                  "Travelodge Sunderland" => 2.5, "StayBridge Suits London" => 1),

                "john" => array("Linthwaite House" => 5, "Britannia Hotel leeds" => 3.5,
                                "Premier Inn Newcastle" => 1),

                "peter" => array("chaos" => 5, "php in action" => 3.5),

                "jill" => array("Apex London Wall" => 1.5, "Britannia Hotel leeds" => 2.5,
                                "Mercure Leeds parkaway wilds" => 4, "the host: a novel" => 3.5,
                                "the world without end" => 2.5, "StayBridge Suits London" => 3.5),

                "bruce" => array("Apex London Wall" => 3, "the hollow" => 1.5,
                                 "Mercure Leeds parkaway wilds" => 3, "Sunderland Marrtiot" => 3.5,
                                 "the appeal" => 2, "StayBridge Suits London" => 3),

                "tom" => array("chaos" => 2.5)


            );

我在phpmyadminl中的表格 tbl_rating表（id，rate，user_id和hote_id）酒店表（id，hotel_name，hotel_price，图片，描述）用户表（身份证，姓名，电子邮件和密码）

我之所以包含三个表的原因是我想加入表以便从users表中提取名称，并使用评级表从hotel表中提取hotel_name

Answer 1

$usersHotels = getUsersHotels();
function getUsersHotels()
{
   //mysqli provider - you can use any your own db connection
   $mysqli = getDbConnection();

   $query = 'SELECT  users_table.name as user_name, hotel_table.hotel_name, 
   tbl_rating.rate FROM users_table JOIN tbl_rating ON 
   (users_table.id=tbl_rating.user_id) JOIN hotel_table ON (hotel_table.id = 
   tbl_rating.hote_id)';

   $data = array();
   if ($result = $mysqli->query($query)) {
      while ($row = $result->fetch_assoc()) {
         if(isset($data[$row['user_name']) && is_array( $data[$row['user_name']])){
           $data[$row['user_name']] = array_merge( $data[$row['user_name']], array($row['hotel_name'] => $row['rate']));
         } else  {
           $data[$row['user_name']] = array($row['hotel_name'] => $row['rate']);
         }
      }
   }
   $result->free();
   return $data;
}

//optional code.
function getDbConnection()
{
   $mysqli = new mysqli("localhost", "user", "password", "world");

   /* check connection */
   if ($mysqli->connect_errno) {
       printf("Connection failed: %s\n", $mysqli->connect_error);
      exit();
   }
   return $mysqli;
}

如何从数据库中检索我的代码输出这种格式？

1 个答案: