如何扩展从MySQL导入的类别列表 [英] how to expand a category list imported from MySQL

问题描述

我从phpMyAdmin中的两个不同的表中导入了一组不同的值，一个来自Category表（其中cat_id是PK），另一个来自Item表;其中（cat_id是FK）。

I have imported a set of different values from two different tables in phpMyAdmin, one from Category table (where cat_id is a PK) and another from Item table; where (cat_id is a FK).

<?php
require ('config.php');

$que = "SELECT * FROM category";
$run = mysql_query($que);
$j = 0;
while($row = mysql_fetch_array($run))
{
    $cat_idd[$j] = $row['cat_id'];
    $cat_namee[$j] = $row['cat_name'];
    $j++;
}
for($i = 0;  $i < count($cat_idd);  $i++)
{
    $que2 = "SELECT * FROM item WHERE cat_id = '$cat_idd[$i]' ";
    $result = mysql_query($que2);
    $run = mysql_num_rows($result);
    echo "<a href=''>".$cat_namee[$i]."(".$run.")</a><br>";
}
?>

这是我到目前为止所拥有的：

Here is what I have so far:

现在我该如何扩展它？或者，例如，如何在同一页面或下一页上显示存储在名为Clothing的类别中的两个项目？由于此代码只能帮助我查看数据库中存储的项目数量，

Now how do I expand it? or for example, how do I show the two items that are stored in the category named Clothing on the same page or next? Since this code only helps me to view the number of items stored inside the database,

这是我的表单：

    <form name = "view" method = "POST" action ="cart.php">
      <table align = 'center' width = '100%' border = '4'>
      <tr bgcolor = 'yellow'>
      <td colspan = '20' align = 'center'><h2> Viewing all the Products </td>
</tr>
      <tr align = 'center'>
      <th>Item ID</th>
      <th>Name</th>
      <th>Price</th>
      <th>Select</th>
      </tr>

      <tr  class = "odd">


      <?php
        require ('config.php');

        $que = "SELECT * FROM category";
        $run = mysql_query($que);
        $j = 0;
      while($row = mysql_fetch_array($run))
       {
         $cat_idd[$j] = $row['cat_id'];
         $cat_namee[$j] = $row['cat_name'];
         $j++;
       }

我想过使用数组函数将值存储在一个类别中，即服装（2）=> 2 。

I thought of using an array function to store the value inside a category i.e Clothing(2) => 2.

       function array_insert(&$array, $position, $insert)
       {
         if (is_int($position)) {
          array_splice($array, $position, 0, $insert);
       } else {
          $pos   = array_search($position, array_keys($array));
          $array = array_merge(
             array_slice($array, 0, $pos),
             $insert,
            array_slice($array, $pos)
        );
       }
       }

      $arr = array();
      $arr[] = 2;


      for($i = 0;  $i < count($cat_idd);  $i++)
      {
       $que2 =  "SELECT * FROM item WHERE cat_id = '$cat_idd[$i]'";
       $result = mysql_query($que2);
       $run = mysql_num_rows($result);
       echo "<a href=''>".$cat_namee[$i]."(".$run.")</a><br>";
     array_insert($arr, 0, "$run");
     // echo $arr[0];
      }
        $que2 = "SELECT * FROM item WHERE cat_id = '1'";      //instead of using '1' i wish to use the one user clicks on!
        $res2 = mysql_query($que2);
       while($row = mysql_fetch_array($res2))
        {
          $i_id = $row['item_id'];
          $i_namee = $row['item_name'];
          $i_price = $row['item_price'];


       ?>
       <td><?php echo $i_id; ?></td>
       <td><?php echo $i_namee; ?></td>
       <td><?php echo $i_price; ?></td>
       <td><input type="checkbox" name="addcart" value="<?php echo $item; ?>" onClick="return KeepCount()" />Tick</td>
</tr>
       <?php }  ?>    
       <br><br>
       </table>
       <input type = "hidden" name = "check">
       <button type=  "submit" onclick = "location.href = 'cart.php';" id = "cart" style="float:right; margin-top: 30px; margin-right: 10px;">Add to Cart</button>

上图是我想要的结果，这个只针对服装（2）。我希望它随着用户点击其他东西而改变，例如，Shoes（1）。

The above image is the result what I want, this one is specific for Clothing(2) only. I want it to change as the user clicks on something else for example, Shoes(1).

推荐答案

所以在花了几乎一个一两天我终于找到了解决方法，我在这里发布答案，所以如果有其他人来这里寻找它。

So after spending almost a day or two I have finally got a way out of this and I'm posting the answer here so if anyone else comes here looking for it.

<?php
 require ('config.php');

 $que = "SELECT * FROM category";
 $run = mysql_query($que);
 $j = 0;
 while($row = mysql_fetch_array($run))
 {
    $cat_idd[$j] = $row['cat_id'];
    $cat_namee[$j] = $row['cat_name'];
  $j++;
 }
for($i = 0;  $i < count($cat_idd);  $i++)
    {
        $que2 = "SELECT * FROM item WHERE cat_id = '$cat_idd[$i]' ";
        $result = mysql_query($que2);
        $run = mysql_num_rows($result);
        echo "<a href='c.php?id=$cat_idd[$i]'>".$cat_namee[$i]."(".$run.")</a><br><br>";
    }

?>


<?php
 require('config.php');
 if(isset($_GET['id']))
 { 
    $cat_id = $_GET['id'];
    $que = "SELECT * FROM item WHERE cat_id = '$cat_id'";
    $run = mysql_query($que);
?>
<br><br>
<form name = "view" method = "POST" action ="cart.php">
<table align = 'center' width = '100%' border = '4'>
<tr>
<td colspan = '20' align = 'center'><h2> Viewing all the Products </h2></td>
</tr>

<tr align = 'center'>
<th>Item ID</th>
<th>Name</th>
<th>Price</th>
<th>Select</th>
</tr>

<tr align = 'center' class = "odd">
<?php

    while($row = mysql_fetch_array($run))
    {
        $i_id = $row['item_id'];
        $i_name = $row['item_name'];
        $i_price = $row['item_price'];
        ?>
<td><?php echo $i_id; ?></td>
<td><?php echo $i_name; ?></td>
<td><?php echo $i_price; ?></td>
<?php

$item = $i_name ." ". $i_price;  

?>                                                      
<td><input type="checkbox" name="addcart[]" value="<?php echo $item; ?> />Tick</td> 
</tr>
<?php  }?><input type = "hidden" name = "check">
<button type=  "submit" onclick = "location.href = 'cart.php';" id = "cart">Add to Cart</button> <?php }  ?>  
</table>

这篇关于如何扩展从MySQL导入的类别列表的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！