php - 如何对齐 Bootstrap 缩略图

Question

我正在使用 Bootstrap thumbnail。我想每行对齐 3 个缩略图。请看图片。 这就是我想要发生的事情: (Please Click) 正如您在图像上看到的那样， thumbnail 每行对齐 3 个。但我现在拥有的是:(Please Click) 在图像上，它们每行对齐 1。请注意，我显示了来自数据库的卡车图片和标签。我只想将它们每行对齐 3 个 thumbnails。非常感谢您的帮助。这是我的代码:

 <!-- IMAGE THUMBNAIL START -->
 <div class="row">

 <div class="col-sm-2"></div>
 <div class="row">
 <div class="col-sm-6 col-md-3">
  <?php 
   include 'configmysqli.php';
   $query = "SELECT * FROM trucks ORDER BY TRUCK_TYPE ASC";
   $result = mysqli_query($connect, $query);
   while($row = mysqli_fetch_array($result))
    {
    ?>

   <div class="thumbnail">  
   <img src="<?=$row['TRUCK_PHOTO']?>" height="242" width="200" class="img-
      responsive img-rounded" alt="">
   <div class="caption">
   <form action="requesttruck.php" method="post" enctype="multipart/form-
     data">
    <h3><?=$row['TRUCK_TYPE']?></h3>
         <input type="text" name="companynum" hidden="true" value="<?
          =$row['COMPANY_NUM']?>">
         <input type="text" name="trucktype" hidden="true" value="<?
          =$row['TRUCK_TYPE']?>">

      <button class="btn btn-primary" name="request">Request</button>
      <button class="btn btn-default" name="view">View</button>
  </form>
 </div> <!-- caption -->
</div> <!-- thumbnail -->

<?php
}
?>
</div> <!-- col -->
</div> <!-- row -->
<div class="col-sm-2"></div>
</div>

Answer 1

您的 while 需要包含您正在生成的列，否则您只是在一个列中生成所有内容。

请注意，您可能最终需要两个循环。一个用于生成行，一个用于生成列(每个缩略图)。

 <div class="row">

  <?php 
   include 'configmysqli.php';
   $query = "SELECT * FROM trucks ORDER BY TRUCK_TYPE ASC";
   $result = mysqli_query($connect, $query);
   while($row = mysqli_fetch_array($result))
    {
    ?>
<div class="col-sm-6 col-md-3">
   <div class="thumbnail">  
   <img src="<?=$row['TRUCK_PHOTO']?>" height="242" width="200" class="img-
      responsive img-rounded" alt="">
   <div class="caption">
   <form action="requesttruck.php" method="post" enctype="multipart/form-
     data">
    <h3><?=$row['TRUCK_TYPE']?></h3>
         <input type="text" name="companynum" hidden="true" value="<?
          =$row['COMPANY_NUM']?>">
         <input type="text" name="trucktype" hidden="true" value="<?
          =$row['TRUCK_TYPE']?>">

      <button class="btn btn-primary" name="request">Request</button>
      <button class="btn btn-default" name="view">View</button>
  </form>
 </div> <!-- caption -->
</div> <!-- thumbnail -->
</div> <!-- col -->
<?php
}
?>

</div> <!-- row -->