只得到了最後一個ID在PHP

Question

我共有7標識在MySQL表。而我取這些標識的數據庫從

代碼：

<form class="form-inline" method="POST" action="book.php"> 
<div class="row-fluid home"> 
    <div class="span3"> 


    <?php 
     $query=mysql_query("select * from category"); 
     $cat_count = 0; 
     while($result=mysql_fetch_array($query)) 
     { 
      $category_id=$result['cat_id']; 
      $category_type=$result['cat_type']; 
      $categroy_desc=$result['cat_desc']; 
      $category_image=$result['cat_images']; 
      $category_price=$result['cat_price']; 
      $cat_count += 1; 
      //$_SESSION["session_category_id"] = $category_id; 
    ?>  
<div class="room_selector" data-price="<?php echo $category_price; ?>" data-adults="4" data-kids="2" 
<?php if ($cat_count!=1) {echo 'style="display: none;"'; } ?> > 

      <h5> 
       <a href="index.php?id=<?php echo $category_id; ?>" class="pull-left"> 
        <i class="icon-chevron-left"></i> 
       </a>       
        <?php echo $category_type; ?>      
       <a href="index.php?id=<?php echo $category_id; ?>" class="pull-right ">    
        <i class="icon-chevron-right"></i> 
       </a> 
      </h5>    
       <a class="iframe" href="rooms.php">    
        <img src="data:image/png;base64,<?php echo base64_encode($category_image); ?>" alt="No Photo" />    
       </a> 

       <p><?php echo $categroy_desc;?></p><br><Br><bR> 
       <!--<a class="btn btn-primary btn-large book-now" name="submit" type="submit" href="book.php?id=<?php echo $category_id; ?>"> 
       Check Availability!</a>--> 
      <?php echo $x=$category_id; 
      ?> 
       <input type="hidden" name="cat_id" value="<?php echo $category_id; ?>"> 
      <?php $users[] = $result['cat_id'];?> 
</div> 

      <?php 
     } 
     ?> 
      <?php echo $category_id; 
     ?> 

    </div>  
    <div class="span3 home_calendar"> 
        <div class="form-horizontal">   
      <div class="control-group"> 
       <label class="control-label pull-left" for="inputEmail">Arrive</label> 
       <div class="controls"> 
        <input type="text" value="" name="from" class="span2 check-in-date" value="2015/05/22" /> 
       </div> 
      </div> 
     </div> 
     <div class="datepicker_from"></div> 
    </div> 
    <div class="span3 home_calendar"> 
        <div class="form-horizontal">   
      <div class="control-group"> 
       <label class="control-label pull-left" for="inputEmail">Depart</label> 
       <div class="controls"> 
        <input type="text" value="" name="to" class="span2 check-out-date" value="2015/05/27" /> 
       </div> 
      </div> 
     </div> 
     <div class="datepicker_to"></div> 
    </div> 

    <div class="span3"> 
     <div class="form-horizontal"> 

      <div class="control-group"> 
       <label class="control-label" for="inputEmail">Rooms</label> 
       <div class="controls"> 
        <select class="span1 select_rooms" name="no_of_selected_room"> 
         <option>1</option> 
         <option>2</option> 
         <option>3</option> 
         <option>4</option> 
         <option>5</option> 
        </select> 
       </div> 
      </div>   


      <div class="control-group"> 
       <label class="control-label" for="inputEmail">Adults per room</label> 
       <div class="controls"> 
        <select class="span1 select_adults" name="no_of_adults"> 
         <option>1</option> 
         <option>2</option> 
         <option>3</option>       
        </select> 
       </div> 
      </div> 

      <div class="control-group"> 
       <label class="control-label" for="inputEmail">Kids per room</label> 
       <div class="controls"> 
        <select class="span1 select_kids" name="no_of_kids"> 
         <option>1</option> 
         <option>2</option> 
         <option>3</option> 
         <option>4</option> 
         <option>5</option> 
        </select> 
       </div> 
      </div> 
      <div class="control-group"> 
       <label class="control-label" for="inputEmail">extra person</label> 
       <div class="controls"> 
        <select class="span1 select_kids"> 
         <option>1</option> 
         <option>2</option> 
         <option>3</option>       
        </select> 
       </div> 
      </div> 


      </div> 
    <div id="total_price" class="price" name="price"></div> 

    <input type="submit" class="btn btn-primary btn-large book-now" name="submit" value="Check Availability!"> 
    <!--<a class="btn btn-primary btn-large book-now" type="submit" href="book.php?id=">Check Availability!</a>--> 


</div> 

的$category_id是主鍵到我的項目。一旦用戶選擇房間，那麼$category_id將基於此選擇。

我想這id發送到其他頁面上，使用一種形式 //book.php

if(isset($_POST['submit'])) 
{  

$n_cat_from = $_POST['from']; 
$n_cat_to = $_POST['to']; 
$n_no_of_selected_rooms = $_POST['no_of_selected_room']; 
$n_no_of_adults = $_POST['no_of_adults']; 
$n_no_of_kids = $_POST['no_of_kids']; 

$current_Category_id = $_POST['cat_id']; 

echo "id;;;;;;;;;;;;" . $current_Category_id; 
}  
?> 

當我嘗試echo是id我在數據庫中只得到了最後一個ID（用戶選擇後不同的ID也）

我在哪裏錯了？爲什麼它採取最後的Id？幫我

如果你想多值存儲在具有相同名稱的隱藏輸入

Answer 1

，你有名稱後添加[]，像這樣：

<input type="hidden" name="cat_id[]" value="<?php echo $category_id; ?>"> 
     <?php $users[] = $result['cat_id'];?> 

這樣，你應該有一個數組中book.php：

$_POST[cat_id] => Array ([0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 5 [5] => 6 [6] => 7)