如何将一个数组元素分配给另一个数组？答案

【问题标题】：How to assign one array elements to another array?如何将一个数组元素分配给另一个数组？
【发布时间】：2017-11-22 06:37:55
【问题描述】：

我在数据库中有两张表，一张是saloon_staff，第二张是saloon_staff_timings

Saloon_staff

saloon_staff_timings

现在在 saloon_staff_timings 表中，我正在插入轿车工作人员的时间。我已经运行了两个查询来从表中获取数据，第一个查询是通过 saloon_staff_timings 表中的 saloon_staff_id 获取轿车员工的姓名，第二个查询是获取轿车员工的时间。

这是我的代码。

<?php 

 foreach ($saloon_staff as $key => $value)
  {
    echo"<tr>";

    echo"<td> $value->staff_name </td>";


      foreach ($staff_timings as $key => $stf_timngs) 
       {
  ?>
     <td><?php echo $stf_timngs->start_time ?></td>
  <?php 
        } 
       echo"</tr>";
     } 
?>

这段代码的结果。

第一个 foreach 循环显示轿车工作人员的姓名，第二个 foreach 循环显示轿车工作人员的时间。我在第二个 foreach 循环中有一个问题，我想要得到的是名称和针对该名称的时间。但是现在，我在数据库中得到了所有可用的时间，这是错误的。

沙龙员工计时 print_r($saloon_staff)

  Array
    (
        [0] => stdClass Object
            (
                [staff_name] => Salman Iqbal
                [id] => 1
            )

        [1] => stdClass Object
            (
                [staff_name] => Alludin 
                [id] => 2
            )

    )

沙龙员工计时 print_r($staff_timings)

 Array
    (
        [0] => stdClass Object
            (
                [id] => 1
                [saloon_staff_id] => 1
                [day] => Monday
                [start_time] => 01:03:00
                [end_time] => 18:00:00
                [break_start] => 00:00:00
                [break_end] => 00:00:00
                [saloon_profiles_id] => 1
                [phone_number] => 098098098
                [email] => SalmanIq@facebook.com
                [appointments_enabled] => 1
                [role_in_saloon] => Owner
                [name] => Salman Iqbal
            )

        [1] => stdClass Object
            (
                [id] => 1
                [saloon_staff_id] => 1
                [day] => Tuesday
                [start_time] => 03:06:00
                [end_time] => 19:04:00
                [break_start] => 00:00:00
                [break_end] => 00:00:00
                [saloon_profiles_id] => 1
                [phone_number] => 098098098
                [email] => SalmanIq@facebook.com
                [appointments_enabled] => 1
                [role_in_saloon] => Owner
                [name] => Salman Iqbal
            )

        [2] => stdClass Object
            (
                [id] => 1
                [saloon_staff_id] => 1
                [day] => Wednesday
                [start_time] => 02:08:00
                [end_time] => 21:08:00
                [break_start] => 00:00:00
                [break_end] => 00:00:00
                [saloon_profiles_id] => 1
                [phone_number] => 098098098
                [email] => SalmanIq@facebook.com
                [appointments_enabled] => 1
                [role_in_saloon] => Owner
                [name] => Salman Iqbal
            )

        [3] => stdClass Object
            (
                [id] => 1
                [saloon_staff_id] => 1
                [day] => Thursday
                [start_time] => 01:00:00
                [end_time] => 14:08:00
                [break_start] => 00:00:00
                [break_end] => 00:00:00
                [saloon_profiles_id] => 1
                [phone_number] => 098098098
                [email] => SalmanIq@facebook.com
                [appointments_enabled] => 1
                [role_in_saloon] => Owner
                [name] => Salman Iqbal
            )

        [4] => stdClass Object
            (
                [id] => 1
                [saloon_staff_id] => 1
                [day] => Friday
                [start_time] => 01:06:00
                [end_time] => 19:09:00
                [break_start] => 00:00:00
                [break_end] => 00:00:00
                [saloon_profiles_id] => 1
                [phone_number] => 098098098
                [email] => SalmanIq@facebook.com
                [appointments_enabled] => 1
                [role_in_saloon] => Owner
                [name] => Salman Iqbal
            )

        [5] => stdClass Object
            (
                [id] => 1
                [saloon_staff_id] => 1
                [day] => Saturday
                [start_time] => 01:09:00
                [end_time] => 15:09:00
                [break_start] => 00:00:00
                [break_end] => 00:00:00
                [saloon_profiles_id] => 1
                [phone_number] => 098098098
                [email] => SalmanIq@facebook.com
                [appointments_enabled] => 1
                [role_in_saloon] => Owner
                [name] => Salman Iqbal
            )

        [6] => stdClass Object
            (
                [id] => 1
                [saloon_staff_id] => 1
                [day] => Sunday
                [start_time] => 00:03:00
                [end_time] => 19:09:00
                [break_start] => 00:00:00
                [break_end] => 00:00:00
                [saloon_profiles_id] => 1
                [phone_number] => 098098098
                [email] => SalmanIq@facebook.com
                [appointments_enabled] => 1
                [role_in_saloon] => Owner
                [name] => Salman Iqbal
            )

        [7] => stdClass Object
            (
                [id] => 2
                [saloon_staff_id] => 2
                [day] => Monday
                [start_time] => 02:03:00
                [end_time] => 16:09:00
                [break_start] => 00:00:00
                [break_end] => 00:00:00
                [saloon_profiles_id] => 1
                [phone_number] => 98790809809
                [email] => alludin@gmail.com
                [appointments_enabled] => 1
                [role_in_saloon] => No Access
                [name] => Alludin 
            )

        [8] => stdClass Object
            (
                [id] => 2
                [saloon_staff_id] => 2
                [day] => Tuesday
                [start_time] => 01:09:00
                [end_time] => 20:01:00
                [break_start] => 00:00:00
                [break_end] => 00:00:00
                [saloon_profiles_id] => 1
                [phone_number] => 98790809809
                [email] => alludin@gmail.com
                [appointments_enabled] => 1
                [role_in_saloon] => No Access
                [name] => Alludin 
            )

        [9] => stdClass Object
            (
                [id] => 2
                [saloon_staff_id] => 2
                [day] => Wednesday
                [start_time] => 01:09:00
                [end_time] => 21:00:00
                [break_start] => 00:00:00
                [break_end] => 00:00:00
                [saloon_profiles_id] => 1
                [phone_number] => 98790809809
                [email] => alludin@gmail.com
                [appointments_enabled] => 1
                [role_in_saloon] => No Access
                [name] => Alludin 
            )

        [10] => stdClass Object
            (
                [id] => 2
                [saloon_staff_id] => 2
                [day] => Thursday
                [start_time] => 11:00:00
                [end_time] => 13:09:00
                [break_start] => 00:00:00
                [break_end] => 00:00:00
                [saloon_profiles_id] => 1
                [phone_number] => 98790809809
                [email] => alludin@gmail.com
                [appointments_enabled] => 1
                [role_in_saloon] => No Access
                [name] => Alludin 
            )

        [11] => stdClass Object
            (
                [id] => 2
                [saloon_staff_id] => 2
                [day] => Friday
                [start_time] => 01:07:00
                [end_time] => 21:00:00
                [break_start] => 00:00:00
                [break_end] => 00:00:00
                [saloon_profiles_id] => 1
                [phone_number] => 98790809809
                [email] => alludin@gmail.com
                [appointments_enabled] => 1
                [role_in_saloon] => No Access
                [name] => Alludin 
            )

        [12] => stdClass Object
            (
                [id] => 2
                [saloon_staff_id] => 2
                [day] => Saturday
                [start_time] => 00:00:00
                [end_time] => 00:00:00
                [break_start] => 00:00:00
                [break_end] => 00:00:00
                [saloon_profiles_id] => 1
                [phone_number] => 98790809809
                [email] => alludin@gmail.com
                [appointments_enabled] => 1
                [role_in_saloon] => No Access
                [name] => Alludin 
            )

        [13] => stdClass Object
            (
                [id] => 2
                [saloon_staff_id] => 2
                [day] => Sunday
                [start_time] => 00:00:00
                [end_time] => 00:00:00
                [break_start] => 00:00:00
                [break_end] => 00:00:00
                [saloon_profiles_id] => 1
                [phone_number] => 98790809809
                [email] => alludin@gmail.com
                [appointments_enabled] => 1
                [role_in_saloon] => No Access
                [name] => Alludin 
            )

    )

我们将不胜感激。

【问题讨论】：

你可以只使用一个连接语句，不需要使用两个查询
使用 JOIN 并在数据库端执行。
如果您保留当前将所有数据存储在$saloon_staff/$staff_timings 中的方法，则需要有一种方法来关联数据，即使用saloon_staff_id 作为键（ s) 在您的$staff_timings 中。然后你可以做 -> foreach($staff_timings[$key] => ...

标签： php arrays codeigniter-3

【解决方案1】：

简单你缺少 if 语句...试试这个：-

<?php 

foreach ($saloon_staff as $key => $value){
    echo"<tr>";
    echo"<td> $value->staff_name </td>";
    foreach ($staff_timings as $key => $stf_timngs){
       if($stf_timngs->saloon_staff_id == $value->id ){?>
       <td><?php echo $stf_timngs->start_time ?></td>
   <?php }  }
   echo"</tr>";
 } ?>

希望对您有所帮助！.. 如果您想处理联接，请参阅@sajeevan 答案

【讨论】：

【解决方案2】：

只需使用 INNER JOIN 连接两个表并按使用条件显示数据相应的列

SELECT ss.*,sst.* FROM `Saloon_staff` INNER JOIN `Saloon_Staff_timings` AS sst ON sst.`saloon_staff_id`= ss.`saloon_profile_id`

【讨论】：

【解决方案3】：

您好，试试下面的 sn-p。它应该可以工作。

<?php 

  foreach ($saloon_staff as $key => $value) {

  echo"<tr>";
  echo"<td> $value->staff_name </td>";

  foreach ($staff_timings as $key => $stf_timngs) {

     if($value->id  == $stf_timngs->saloon_staff_id ){
          echo  "<td>".$stf_timngs->start_time."</td>";
      }

    } 

   echo"</tr>";

 }

在您的代码中，您只是打印出修剪，而不管用户的时间安排如何。所以我只是在第一个 foreach 循环中添加了对用户 ID 的检查，并在时序表中添加了员工个人资料 ID。这应该会导致与特定用户相关的修剪。

【讨论】：

【解决方案4】：

您需要检查$saloon_staff id 和$staff_timings 的ID。之所以会全部打印是因为我们没有检查它

代码如下：

foreach ($saloon_staff as $key => $value){
    echo '<tr>';
    echo '<td>' . $value->staff_name . '</td>';
    foreach ($staff_timings as $key2 => $stf_timngs) {
        // Check ID if equal
        if($value->id == $stf_timings->saloon_staff_id){
            echo '<td>' . $stf_timngs->start_time . '</td>';
        }
    } 
    echo"</tr>";
}

我还清理了代码。这更容易阅读，因为我在 echo 中包含了 html 标记，而不是分隔 html。

【讨论】：

错了，应该是 $value->id 而不是 $value->saloon_profiles_id