Question

我正在尝试使用下拉框对我的产品进行排序。当我选择一个选项时，代码不会运行且产品不会改变位置。 iv设法通过使用不同的按钮对产品进行排序，但我认为下拉列表在网站上看起来会更好。

  <?php
   echo $sort = @$_GET['order']; 
   if (!empty($sort)) {  
   echo $query="SELECT * FROM products ORDER BY '".$sort."'";



    } else { 
     echo $query="SELECT * FROM products order by " ;
    }
    ?>


<form name="sort" action="" method="post">
<select name="order">
   <option value="choose">Make A Selection</option>
   <option value="price_asc">Price </option>
   <option value="price_desc">Z-A</option>
   <option value="name_asc">A-Z</option>
</select>
<input type="submit" value=" - Sort - " />
</form>



<?php

//Run the query.

$record_set = $connection->query($query);

while( $row = $record_set->fetch_assoc() ) {


echo '<div class="product">'; 
echo '<div class="product-content"><h3>'. $row['name'].'</h3>' .'</div>' . '<br />'.'<div class="product-thumb"><img src="/ISD assignment2/images/'. $row['imageName'].'"></div>'. '<div class="product-desc">'.$row['description']. '</div>'. '<br />' .'&pound;'. number_format($row['price'], 2) . '<a href="../cart/cart.php?add=' . $row['productID'] . '"><p>Add</a></p>';
echo '</div>';





}
?>

Answer 1

Two potential issues:

1) Your Form has no action.  I believe you are trying to get it to refresh onto itself.
which would be:
action=" <?php echo $_SERVER['PHP_SELF'] ?>"

2) You are submitting via POST, yet using GET.
$sort = $_POST['order'];

下拉排序选项不起作用

1 个答案: