Php Foreach未显示多维数组中的所有项_Php_Arrays_Multidimensional Array_Foreach

Php Foreach未显示多维数组中的所有项

php arrays

Php Foreach未显示多维数组中的所有项,php,arrays,multidimensional-array,foreach,Php,Arrays,Multidimensional Array,Foreach,这是我很久以来的第一个问题，非常感谢您的帮助我有一个存储车辆的数据库和一个存储车辆图像的数据库。我使用内部连接来获取车辆及其图像的列表。在数据库查询之后，我将返回值放入一个数组中；因此，1个阵列中有2个阵列： return array($vehicles, $vehicle_images); 当我进行打印时，我得到了正确的返回值： <?php print_r($your_listings[0]); ?> <br /> <?php print_r($your_li

这是我很久以来的第一个问题，非常感谢您的帮助

我有一个存储车辆的数据库和一个存储车辆图像的数据库。我使用内部连接来获取车辆及其图像的列表。在数据库查询之后，我将返回值放入一个数组中；因此，1个阵列中有2个阵列：

return array($vehicles, $vehicle_images);

当我进行打印时，我得到了正确的返回值：

<?php print_r($your_listings[0]); ?>
<br />
<?php print_r($your_listings[1]); ?>

现在，当我做一个foreach（包括bootstrap4样式），它只显示2辆车，而不是3辆；它显示的2辆车似乎完全符合我的要求：

<div class="container-fluid">
 <div class="row no-gutters">
<?php
$your_listings = owner_listings($_SESSION['user']);

if (!($your_listings[0])) {
  echo '<div class="col-sm"><div class="alert alert-danger" role="alert"><i class="fas fa-exclamation"></i> You do not have any listings active at this time.</div></div>';
}
else {
 foreach ($your_listings as $i => $item) {
  $make = $your_listings[0][$i]['vehicle_make'];
  $model = $your_listings[0][$i]['vehicle_model'];
  $year = $your_listings[0][$i]['vehicle_year'];
  $vehicle = $your_listings[0][$i]['vehicle_id'];
  $image = $your_listings[1][$i]['image_display'];
    if ($image != 'placeholder') {
      echo '<div class="col-sm"><div class="card" style="width: 18rem;">
            <h5 class="card-title text-center font-weight-bold">'.$year.' '.$make.' '.$model.'</h5>
            <img class="card-img-top" src="'.$image.'" alt="'.$year.' '.$make.' '.$model.'">
            <div class="card-body">
              <a href="#" class="btn btn-primary edit_button" value="'.$vehicle.'" id="'.$vehicle.'" data-vehicle="'.$vehicle.'">Edit</a>
            </div>
            </div></div>';
          }
          else {
            if ($your_listings[0][$i]['vehicle_type'] == 'atv') {
              $image = '/new/images/vehicles/types/atv.png';
              }
            elseif ($your_listings[0][$i]['vehicle_type'] == 'jeep') {
              $image = '/new/images/vehicles/types/jeep.png';
              }
            elseif ($your_listings[0][$i]['vehicle_type'] == 'motorcycle') {
              $image = '/new/images/vehicles/types/motorchycle.png';
              }
            echo '<div class="col-sm"><div class="card" style="width: 18rem;">
            <h5 class="card-title text-center font-weight-bold">'.$year.' '.$make.' '.$model.'</h5>
            <img class="card-img-top" src="'.$image.'" alt="'.$year.' '.$make.' '.$model.'">
            <div class="card-body">
              <a href="#" class="btn btn-primary edit_button" value="'.$vehicle.'" id="'.$vehicle.'" data-vehicle="'.$vehicle.'">Edit</a>
            </div>
            </div></div>';
          }
        }
  }
  ?>

</div>
</div>

我只是盯着这个看太久了吗？我做错了什么？感谢您的帮助

谢谢

您正在循环原始数组，正如您所说，它有两个数组。您想要的是只通过

列表的第一个元素循环得到三辆车
if (!($your_listings[0])) {
  echo '<div class="col-sm"><div class="alert alert-danger" role="alert"><i class="fas fa-exclamation"></i> You do not have any listings active at this time.</div></div>';
}
else {
foreach ($your_listings as $i => $item) {    // should be foreach ($your_listings[0] as $i => $item) {
$make = $item['vehicle_make'];
$model = $item['vehicle_model'];

if（！（$your_listings[0]））{
echo“您目前没有任何活动的列表。”；
}
否则{
foreach（$i=>$item）应该是foreach（$i=>$item）你的\u清单[0]应该是foreach{
$make=$item['vehicle_make']；
$model=$item['vehicle_model']；
您正在循环原始数组，正如您所说，该数组有两个数组。您想要的是只循环通过列表的第一个元素来获得三辆车
if (!($your_listings[0])) {
  echo '<div class="col-sm"><div class="alert alert-danger" role="alert"><i class="fas fa-exclamation"></i> You do not have any listings active at this time.</div></div>';
}
else {
foreach ($your_listings as $i => $item) {    // should be foreach ($your_listings[0] as $i => $item) {
$make = $item['vehicle_make'];
$model = $item['vehicle_model'];

if（！（$your_listings[0]））{
echo“您目前没有任何活动的列表。”；
}
否则{
foreach（$i=>$item）应该是foreach（$i=>$item）你的\u清单[0]应该是foreach{
$make=$item['vehicle_make']；
$model=$item['vehicle_model']；
尝试一下这个答案
<div class="container-fluid">
    <div class="row no-gutters">
    <?php
        $your_listings = owner_listings($_SESSION['user']);

        if (!($your_listings[0])) 
        {
          echo '<div class="col-sm"><div class="alert alert-danger" role="alert"><i class="fas fa-exclamation"></i> You do not have any listings active at this time.</div></div>';
        }
        else 
        {
            $newarray = array();
            foreach($your_listings[0] as $i => $item)
            {
                $newarray[$item["vehicle_id"]] = $item["image_display"];
            }
            foreach ($your_listings[0] as $i => $item) 
            {
              $make = $item['vehicle_make'];
              $model = $item['vehicle_model'];
              $year = $item['vehicle_year'];
              $vehicle = $item['vehicle_id'];         
              $image = $newarray[$vehicle];
                if ($image != 'placeholder') 
                {
                    echo '<div class="col-sm"><div class="card" style="width: 18rem;">
                        <h5 class="card-title text-center font-weight-bold">'.$year.' '.$make.' '.$model.'</h5>
                        <img class="card-img-top" src="'.$image.'" alt="'.$year.' '.$make.' '.$model.'">
                        <div class="card-body">
                          <a href="#" class="btn btn-primary edit_button" value="'.$vehicle.'" id="'.$vehicle.'" data-vehicle="'.$vehicle.'">Edit</a>
                        </div>
                        </div></div>';
                }
                else 
                {
                    if ($item['vehicle_type'] == 'atv') {
                      $image = '/new/images/vehicles/types/atv.png';
                      }
                    elseif ($item['vehicle_type'] == 'jeep') {
                      $image = '/new/images/vehicles/types/jeep.png';
                      }
                    elseif ($item['vehicle_type'] == 'motorcycle') {
                      $image = '/new/images/vehicles/types/motorchycle.png';
                      }
                    echo '<div class="col-sm"><div class="card" style="width: 18rem;">
                    <h5 class="card-title text-center font-weight-bold">'.$year.' '.$make.' '.$model.'</h5>
                    <img class="card-img-top" src="'.$image.'" alt="'.$year.' '.$make.' '.$model.'">
                    <div class="card-body">
                      <a href="#" class="btn btn-primary edit_button" value="'.$vehicle.'" id="'.$vehicle.'" data-vehicle="'.$vehicle.'">Edit</a>
                    </div>
                    </div></div>';
                }
            }
        }
    ?>
    </div>
</div>

尝试一下这个答案
<div class="container-fluid">
    <div class="row no-gutters">
    <?php
        $your_listings = owner_listings($_SESSION['user']);

        if (!($your_listings[0])) 
        {
          echo '<div class="col-sm"><div class="alert alert-danger" role="alert"><i class="fas fa-exclamation"></i> You do not have any listings active at this time.</div></div>';
        }
        else 
        {
            $newarray = array();
            foreach($your_listings[0] as $i => $item)
            {
                $newarray[$item["vehicle_id"]] = $item["image_display"];
            }
            foreach ($your_listings[0] as $i => $item) 
            {
              $make = $item['vehicle_make'];
              $model = $item['vehicle_model'];
              $year = $item['vehicle_year'];
              $vehicle = $item['vehicle_id'];         
              $image = $newarray[$vehicle];
                if ($image != 'placeholder') 
                {
                    echo '<div class="col-sm"><div class="card" style="width: 18rem;">
                        <h5 class="card-title text-center font-weight-bold">'.$year.' '.$make.' '.$model.'</h5>
                        <img class="card-img-top" src="'.$image.'" alt="'.$year.' '.$make.' '.$model.'">
                        <div class="card-body">
                          <a href="#" class="btn btn-primary edit_button" value="'.$vehicle.'" id="'.$vehicle.'" data-vehicle="'.$vehicle.'">Edit</a>
                        </div>
                        </div></div>';
                }
                else 
                {
                    if ($item['vehicle_type'] == 'atv') {
                      $image = '/new/images/vehicles/types/atv.png';
                      }
                    elseif ($item['vehicle_type'] == 'jeep') {
                      $image = '/new/images/vehicles/types/jeep.png';
                      }
                    elseif ($item['vehicle_type'] == 'motorcycle') {
                      $image = '/new/images/vehicles/types/motorchycle.png';
                      }
                    echo '<div class="col-sm"><div class="card" style="width: 18rem;">
                    <h5 class="card-title text-center font-weight-bold">'.$year.' '.$make.' '.$model.'</h5>
                    <img class="card-img-top" src="'.$image.'" alt="'.$year.' '.$make.' '.$model.'">
                    <div class="card-body">
                      <a href="#" class="btn btn-primary edit_button" value="'.$vehicle.'" id="'.$vehicle.'" data-vehicle="'.$vehicle.'">Edit</a>
                    </div>
                    </div></div>';
                }
            }
        }
    ?>
    </div>
</div>


发生这种情况是因为foreach（\u清单为$i=>$item）{
your variable$your_listings
只有两个数组0,1
作为键：）对不起-如果你想提交答案，我会接受的！我接受的答案还包括一个例子：）我已经发布了，但如果另一个答案比你也能接受的更好：）这是因为fore而发生的ach（$i=>$item）{
您的变量$your\u listings
只有2个数组0,1
作为键：）抱歉-如果您提交了答案，我可以接受！我接受的答案还包括一个示例：）我已经发布了，但如果另一个答案比您也可以接受的更好：）