Question

将mysql数据提取到多维数组的最佳方法是什么？

SQL：

SELECT tariff, monthly_cost, point, phones.name FROM phoneplanpoint 
LEFT JOIN phones on phoneplanpoint.phone_id =   phones.phone_id
LEFT JOIN price_plans on price_plans.priceplan_id =  phoneplanpoint.priceplan_id

输出：

tariff  monthly_cost    point   name
Matrix  15.00            6.0    Blackberry
Matrix  20.00            10.0   Blackberry
Lion    15.00            12.5   Blackberry
Lion    20.00            14.5   Blackberry
Matrix  15.00            6.5    Iphone
Matrix  20.00            7.5    Iphone

我正在尝试将这些数据放入多维数组中，因此很容易为布局视图准备输出数据。

这是测试的一个快速示例，这是正确的方法吗？当然我会用循环。

$Priceplan['Blackberry'] = array();
$Priceplan['Blackberry']['tariff'][] = array("Name" => "Matrix 15.00", "Point" => "6.0");
$Priceplan['Blackberry']['tariff'][] = array("Name" => "Matrix 20.00", "Point" => "10.0");

我希望视图布局数据如下所示：

enter image description here

Answer 1

假设您的查询返回的数据格式如下：

，以下内容应该可以帮到您

$data = array(
     array(
         'tariff' => 'Matrix',
         'monthly_cost' => '15.00',
         'point' => '6.0',
         'name' => 'Blackberry'
     ),
     array(
         'tariff' => 'Matrix',
         'monthly_cost' => '20.00',
         'point' => '10.0',
         'name' => 'Blackberry'
     ),
     array(
         'tariff' => 'Lion',
         'monthly_cost' => '15.00',
         'point' => '12.5',
         'name' => 'Blackberry'
     ),
     array(
         'tariff' => 'Lion',
         'monthly_cost' => '20.00',
         'point' => '14.5',
         'name' => 'Blackberry'
     ),
     array(
         'tariff' => 'Matrix',
         'monthly_cost' => '15.00',
         'point' => '6.5',
         'name' => 'Iphone'
     ),
     array(
         'tariff' => 'Matrix',
         'monthly_cost' => '20.00',
         'point' => '7.5',
         'name' => 'Iphone'
     )
 );

可能有更好的方法可以做到这一点，但它至少是一个开始

foreach ($data as $plan) {
    if (!isset($output[$plan['name']])) {
        $output[$plan['name']] = array();
    }

    $options = array(
        'name' => $plan['tariff'],
        'price' => $plan['monthly_cost'],
        'point' => $plan['point']
    );

    $output[$plan['name']][] = $options;
}

var_dump($output);

将输出您的数据

array(2) {
  ["Blackberry"] => array(4) {
    [0] => array(3) {
      ["name"] => string(6) "Matrix"
      ["price"] => string(5) "15.00"
      ["point"] => string(3) "6.0"
    }
    [1] => array(3) {
      ["name"] => string(6) "Matrix"
      ["price"] => string(5) "20.00"
      ["point"] => string(4) "10.0"
    }
    [2] => array(3) {
      ["name"] => string(4) "Lion"
      ["price"] => string(5) "15.00"
      ["point"] => string(4) "12.5"
    }
    [3] => array(3) {
      ["name"] => string(4) "Lion"
      ["price"] => string(5) "20.00"
      ["point"] => string(4) "14.5"
    }
  }
  ["Iphone"] => array(2) {
    [0] => array(3) {
      ["name"] => string(6) "Matrix"
      ["price"] => string(5) "15.00"
      ["point"] => string(3) "6.5"
    }
    [1] => array(3) {
      ["name"] => string(6) "Matrix"
      ["price"] => string(5) "20.00"
      ["point"] => string(3) "7.5"
    }
  }
}

最后，如果你想确保它运作良好，请务必在查询中添加订单（在电话名称和资费上）。此代码不会处理重复项。如果你想稍微使用这个代码，可以使用array_unique完成，并确保使用SORT_REGULAR optionnal参数。

使用多维数组进行数据布局？

1 个答案: