Question

我正在努力在过去3到4天内显示这个多维阵列无济于事。
我需要做的就是显示如下：

carName：

carImage：
天：
金额：//这是我面临的问题，显示与特定汽车相关的所有日期和数量。一辆汽车将有几天和每天报价。

//请查看我的代码并帮助...谢谢

<?php
    mysql_select_db($database);

    $query_showall = "SELECT rental.*,
                             car_name.*,
                             gallery.*,
                             car_make.* 
                        FROM rental,
                             car_name,
                             gallery,
                             car_make 
                       WHERE car_name.carName_id = gallery.carName_id 
                         AND car_name.carMake_id = car_make.carMake_id
                         AND rental.carName_id   = car_name.carName_id 
                    GROUP BY rental.carName_id";

    $result_showall = mysql_query($query_showall) or die(mysql_error());

    while($row_showall = mysql_fetch_array($result_showall)) {
        $carMake_all = $row_showall['carName'];

        $carmake_1[$row_showall['carName_id']][] = $row_showall;          
    }                                                                   

    foreach($carmake_1 as $make_1=>$name_1) {
        foreach($name_1 as $n_1) {
            echo $n_1['carName'].'<br/>'; 
            echo $n_1['gallery'].'<br/>';

            /* I need to loop through the rental table 
               to retrieve num of days and amount for 
               each car here.. */
            echo $n_1['rental_days'].'<br/>';
            echo $n_1['rental_amount'].'<br/>';     
        }                                                 
    }                                                  
?>

不使用GROUP BY编辑但是如何停止carName和imageName不重复？

    <?php
 mysql_select_db($database);


 $query_showall="SELECT rental.*,car_name.*,gallery.*,car_make.* FROM rental,car_name,gallery,car_make WHERE car_name.carName_id=gallery.carName_id AND  
     car_name.carMake_id=car_make.carMake_id   AND rental.carName_id=car_name.carName_id ORDER BY rental_days ASC";



$result_showall=mysql_query($query_showall)or die(mysql_error());
  while($row_showall=mysql_fetch_array($result_showall))
  {
      $carMake_all=$row_showall['carName'];
      $carmake_1[$row_showall['carName_id']][]=$row_showall;

  }                                                                 


            foreach($carmake_1 as $make_1=>$name_1)

                   {

            foreach($name_1 as $n_1)

                     {

                          echo $n_1['carName'].'<br/>'; 
                          echo $n_1['gallery'].'<br/>';
                          echo $n_1['rental_days'].'<br/>';
                          echo $n_1['rental_amount'].'<br/>';


                 }

                  }   

?>

Answer 1

好的，我会对此采取行动。我要做的是在你尝试将数据转储出来之前重建数组，以便按照你希望的方式组织你的所有数据，这样在foreach的每一步你都只能显示你想要的数据。

此代码将使用没有group by的SQL语句，如您所述，其中包含所有数据。

// Start with an empty array...
$cars = array();

// Loop over all your results
while($row_showall = mysql_fetch_array($result_showall)) {
    // Set name, if the ID comes up again, it will be reset but won't hurt anything
    $cars[$row_showall['carName_id']]['name']    = $row_showall['carName'];
    // Set gallery, if the ID comes up again, it will be reset but won't hurt anything
    $cars[$row_showall['carName_id']]['gallery'] = $row_showall['gallery'];

    // Now, we add a new property called 'details' and put a new array in...
    $cars[$row_showall['carName_id']]['details'][] = array(
        // Storing a unique day
        'days'   => ['rental_days'],
        // And a unique amount
        'amount' => ['rental_amount']
    );
}

// Loop over each entry in our array...
foreach($cars as $car) {
    // Print out the name, once
    echo $car['name'] . '<br />';
    // Print out the gallery, once
    echo $car['gallery'] . '<br />';

    // Loop over all the details...
    foreach($car['details'] as $detail) {
        // Print out each day
        echo $detail['days']  . '<br />';
        // Print out each amount
        echo $detail['amount']  . '<br />';
    }
}

多维阵列打印

1 个答案: