从数据库更新BLOB映像

时间：2014-08-08 15:27:32

标签： php mysql forms blob edit

我无法从MySQL更新图片，我使用BLOB存储图片但我无法更新它们。我可以创建（上传）一张图片，我也可以阅读（显示）它，但我怎么也不知道如何更新它。

以下是我更新的代码.php 

<?php
session_start();
$con=@mysql_connect("localhost","root","12148qx3er");
$dbcheck = mysql_select_db("buybranded");
    if (!$dbcheck) {
        echo mysql_error();
    }
$itemid = $_GET['id'];
$image = addslashes(file_get_contents($_FILES['prod_pic']['tmp_name']));
$sql = "UPDATE `inventory` SET
prod_brand = '$_POST[prod_brand]',
prod_name = '$_POST[prod_name]',
prod_category = '$_POST[prod_category]',
prod_price = '$_POST[prod_price]',
prod_desc = '$_POST[prod_desc]',
prod_quantity = '$_POST[prod_quantity]','{$image}', WHERE prod_id=$itemid";
if (!mysql_query($sql,$con))
  {
  die('Error: ' . mysql_error($con));
  }
header('refresh: 0;url=inventory.php');
$message = "Product Successfully Updated";
echo("<script type='text/javascript'>alert('$message');</script>");
?>

以及后续问题，当我在没有新文件的情况下按更新时，它说file_get_contents（）不能为空。也许我的代码是错误的，我只需要在需要时更新条目。我可以更新表格，但不能更新图片。

这里是完整的update_inv.php代码

<html>
    <head>
        <meta charset="utf-8" />
        <title>Edit a Product</title>
        <link rel="stylesheet" type="text/css" href="cms.css"/>
    <script type="text/javascript" src="jquery.js"></script>
    <script type="text/javascript" src="jquery.autocomplete.js"></script>
    <script>
     $(document).ready(function(){
      $("#prod_brand").autocomplete("prod_brand_auto_complete.php", {
            selectFirst: true
      });
     });
    </script>
    </head>
    <body>
  <style>
button {
  margin: 10px;
  padding: 10px;
}
a{
  color: black;
  text-decoration: none;
}

</style>


<?php
session_start();
  $conn = @mysql_connect("localhost","root","12148qx3er");
  $db = @mysql_select_db("buybranded");
$itemid = $_GET['id'];
$qry = "SELECT * FROM inventory where prod_id = ".$itemid;
mysql_set_charset("UTF8");
$result = @mysql_query($qry);
if($result === FALSE) {
    die(mysql_error()); // TODO: better error handling
}


echo "<div id='page-wrap'>
  <h1>Edit a Product</h1>";
while ($row=mysql_fetch_array($result)){

$prodbrand = $row['prod_brand'];
$prodname = $row['prod_name'];
$prodcategory = $row['prod_category'];
$prodprice = $row['prod_price'];
$prod_desc = $row['prod_desc'];
$prodpic = $row['prod_pic'];
$prodquantity = $row['prod_quantity'];

echo "<form enctype='multipart/form-data' method='post' action='updating_inv.php?id=$itemid'>";
echo "<table>
      <tr>";
echo "<td><label for='prod_brand'>Product Brand:</label></td>
      <td><input name='prod_brand' id='prod_brand' type='text' maxlength='150' class='col1' placeholder='Auto Complete Form' value='$prodbrand'/></td>";

echo "<td><label for='prod_price'>Product Name:</label></td>
      <td><input name='prod_name' id='prod_name' type='text' maxlength='150' class='col1' value='$prodname'/></td>
      </tr>";
echo "<tr>";
echo "<td><label for='prod_price'>Product Price:</label></td>
      <td><input name='prod_price' id='prod_price' type='text' maxlength='10' class='col1' value='$prodprice'/></td>";
echo "<td> <label for='prod_category'>Category:</label></td>";

if($prodcategory=="Compression"){
echo "<td><label for='prod_category'>Category:</label>
      <select name='prod_category' class='col1'>$prodcategory
      <option>Select Category</option>
      <option selected>Compression</option>
      <option>Headwear</option>
      <option>Shorts</option>
      <option>Yoga</optino>
      <option>Swimming</option>
      <option>Fitness Training</option>
      <option>Water Bottles</option>
      <option>Sports Socks</option>
      <option>Sports Bags</option>
      <option>Protein Shaker</option>
      <option>Gloves</option>
      <option>Splash Guards</option>
      <option>Massagers</option>
      <option>Sun Blocks</option>
      <option>Sports Cleaners</option>
      </select></td>";
}
else if($prodcategory=="Headwear"){
 echo "<td><label for='prod_category'>Category:</label>
      <select name='prod_category' class='col1'>$prodcategory
      <option>Select Category</option>
      <option>Compression</option>
      <option selected>Headwear</option>
      <option>Shorts</option>
      <option>Yoga</optino>
      <option>Swimming</option>
      <option>Fitness Training</option>
      <option>Water Bottles</option>
      <option>Sports Socks</option>
      <option>Sports Bags</option>
      <option>Protein Shaker</option>
      <option>Gloves</option>
      <option>Splash Guards</option>
      <option>Massagers</option>
      <option>Sun Blocks</option>
      <option>Sports Cleaners</option>
      </select></td>"; 
}
else if($prodcategory=="Shorts"){
 echo "<td><label for='prod_category'>Category:</label>
      <select name='prod_category' class='col1'>$prodcategory
      <option>Select Category</option>
      <option>Compression</option>
      <option>Headwear</option>
      <option selected>Shorts</option>
      <option>Yoga</optino>
      <option>Swimming</option>
      <option>Fitness Training</option>
      <option>Water Bottles</option>
      <option>Sports Socks</option>
      <option>Sports Bags</option>
      <option>Protein Shaker</option>
      <option>Gloves</option>
      <option>Splash Guards</option>
      <option>Massagers</option>
      <option>Sun Blocks</option>
      <option>Sports Cleaners</option>
      </select></td>"; 
}
else if($prodcategory=="Yoga"){
 echo "<td><label for='prod_category'>Category:</label>
      <select name='prod_category' class='col1'>$prodcategory
      <option>Select Category</option>
      <option>Compression</option>
      <option>Headwear</option>
      <option>Shorts</option>
      <option selected>Yoga</optino>
      <option>Swimming</option>
      <option>Fitness Training</option>
      <option>Water Bottles</option>
      <option>Sports Socks</option>
      <option>Sports Bags</option>
      <option>Protein Shaker</option>
      <option>Gloves</option>
      <option>Splash Guards</option>
      <option>Massagers</option>
      <option>Sun Blocks</option>
      <option>Sports Cleaners</option>
      </select></td>"; 
}
else if($prodcategory=="Swimming"){
 echo "<td><label for='prod_category'>Category:</label>
      <select name='prod_category' class='col1'>$prodcategory
      <option>Select Category</option>
      <option>Compression</option>
      <option>Headwear</option>
      <option>Shorts</option>
      <option>Yoga</optino>
      <option selected>Swimming</option>
      <option>Fitness Training</option>
      <option>Water Bottles</option>
      <option>Sports Socks</option>
      <option>Sports Bags</option>
      <option>Protein Shaker</option>
      <option>Gloves</option>
      <option>Splash Guards</option>
      <option>Massagers</option>
      <option>Sun Blocks</option>
      <option>Sports Cleaners</option>
      </select></td>"; 
}
else if($prodcategory=="Fitness Training"){
 echo "<td><label for='prod_category'>Category:</label>
      <select name='prod_category' class='col1'>$prodcategory
      <option>Select Category</option>
      <option>Compression</option>
      <option>Headwear</option>
      <option>Shorts</option>
      <option>Yoga</optino>
      <option>Swimming</option>
      <option selected>Fitness Training</option>
      <option>Water Bottles</option>
      <option>Sports Socks</option>
      <option>Sports Bags</option>
      <option>Protein Shaker</option>
      <option>Gloves</option>
      <option>Splash Guards</option>
      <option>Massagers</option>
      <option>Sun Blocks</option>
      <option>Sports Cleaners</option>
      </select></td>"; 
}
else if($prodcategory=="Water Bottles"){
 echo "<td><label for='prod_category'>Category:</label>
      <select name='prod_category' class='col1'>$prodcategory
      <option>Select Category</option>
      <option>Compression</option>
      <option>Headwear</option>
      <option>Shorts</option>
      <option>Yoga</optino>
      <option>Swimming</option>
      <option>Fitness Training</option>
      <option selected>Water Bottles</option>
      <option>Sports Socks</option>
      <option>Sports Bags</option>
      <option>Protein Shaker</option>
      <option>Gloves</option>
      <option>Splash Guards</option>
      <option>Massagers</option>
      <option>Sun Blocks</option>
      <option>Sports Cleaners</option>
      </select></td>"; 
}
else if($prodcategory=="Sports Socks"){
 echo "<td><label for='prod_category'>Category:</label>
      <select name='prod_category' class='col1'>$prodcategory
      <option>Select Category</option>
      <option>Compression</option>
      <option>Headwear</option>
      <option>Shorts</option>
      <option>Yoga</optino>
      <option>Swimming</option>
      <option>Fitness Training</option>
      <option>Water Bottles</option>
      <option selected>Sports Socks</option>
      <option>Sports Bags</option>
      <option>Protein Shaker</option>
      <option>Gloves</option>
      <option>Splash Guards</option>
      <option>Massagers</option>
      <option>Sun Blocks</option>
      <option>Sports Cleaners</option>
      </select></td>"; 
}
else if($prodcategory=="Sports Bags"){
 echo "<td><label for='prod_category'>Category:</label>
      <select name='prod_category' class='col1'>$prodcategory
      <option>Select Category</option>
      <option>Compression</option>
      <option>Headwear</option>
      <option>Shorts</option>
      <option>Yoga</optino>
      <option>Swimming</option>
      <option>Fitness Training</option>
      <option>Water Bottles</option>
      <option>Sports Socks</option>
      <option selected>Sports Bags</option>
      <option>Protein Shaker</option>
      <option>Gloves</option>
      <option>Splash Guards</option>
      <option>Massagers</option>
      <option>Sun Blocks</option>
      <option>Sports Cleaners</option>
      </select></td>"; 
}
else if($prodcategory=="Protein Shaker"){
 echo "<td><label for='prod_category'>Category:</label>
      <select name='prod_category' class='col1'>$prodcategory
      <option>Select Category</option>
      <option>Compression</option>
      <option>Headwear</option>
      <option>Shorts</option>
      <option>Yoga</optino>
      <option>Swimming</option>
      <option>Fitness Training</option>
      <option>Water Bottles</option>
      <option>Sports Socks</option>
      <option>Sports Bags</option>
      <option selected>Protein Shaker</option>
      <option>Gloves</option>
      <option>Splash Guards</option>
      <option>Massagers</option>
      <option>Sun Blocks</option>
      <option>Sports Cleaners</option>
      </select></td>"; 
}
else if($prodcategory=="Gloves"){
 echo "<td><label for='prod_category'>Category:</label>
      <select name='prod_category' class='col1'>$prodcategory
      <option>Select Category</option>
      <option>Compression</option>
      <option>Headwear</option>
      <option>Shorts</option>
      <option>Yoga</optino>
      <option>Swimming</option>
      <option>Fitness Training</option>
      <option>Water Bottles</option>
      <option>Sports Socks</option>
      <option>Sports Bags</option>
      <option>Protein Shaker</option>
      <option selected>Gloves</option>
      <option>Splash Guards</option>
      <option>Massagers</option>
      <option>Sun Blocks</option>
      <option>Sports Cleaners</option>
      </select></td>"; 
}
else if($prodcategory=="Splash Guards"){
 echo "<td><label for='prod_category'>Category:</label>
      <select name='prod_category' class='col1'>$prodcategory
      <option>Select Category</option>
      <option>Compression</option>
      <option>Headwear</option>
      <option>Shorts</option>
      <option>Yoga</optino>
      <option>Swimming</option>
      <option>Fitness Training</option>
      <option>Water Bottles</option>
      <option>Sports Socks</option>
      <option>Sports Bags</option>
      <option>Protein Shaker</option>
      <option>Gloves</option>
      <option selected>Splash Guards</option>
      <option>Massagers</option>
      <option>Sun Blocks</option>
      <option>Sports Cleaners</option>
      </select></td>"; 
}
else if($prodcategory=="Massagers"){
 echo "<td><label for='prod_category'>Category:</label>
      <select name='prod_category' class='col1'>$prodcategory
      <option>Select Category</option>
      <option>Compression</option>
      <option>Headwear</option>
      <option>Shorts</option>
      <option>Yoga</optino>
      <option>Swimming</option>
      <option>Fitness Training</option>
      <option>Water Bottles</option>
      <option>Sports Socks</option>
      <option>Sports Bags</option>
      <option>Protein Shaker</option>
      <option>Gloves</option>
      <option>Splash Guards</option>
      <option selected>Massagers</option>
      <option>Sun Blocks</option>
      <option>Sports Cleaners</option>
      </select></td>"; 
}
else if($prodcategory=="Sun Blocks"){
 echo "<td><label for='prod_category'>Category:</label>
      <select name='prod_category' class='col1'>$prodcategory
      <option>Select Category</option>
      <option>Compression</option>
      <option>Headwear</option>
      <option>Shorts</option>
      <option>Yoga</optino>
      <option>Swimming</option>
      <option>Fitness Training</option>
      <option>Water Bottles</option>
      <option>Sports Socks</option>
      <option>Sports Bags</option>
      <option>Protein Shaker</option>
      <option>Gloves</option>
      <option>Splash Guards</option>
      <option>Massagers</option>
      <option selected>Sun Blocks</option>
      <option>Sports Cleaners</option>
      </select></td>"; 
}
else if($prodcategory=="Sports Cleaners"){
 echo "<td><label for='prod_category'>Category:</label>
      <select name='prod_category' class='col1'>$prodcategory
      <option>Select Category</option>
      <option>Compression</option>
      <option>Headwear</option>
      <option>Shorts</option>
      <option>Yoga</optino>
      <option>Swimming</option>
      <option>Fitness Training</option>
      <option>Water Bottles</option>
      <option>Sports Socks</option>
      <option>Sports Bags</option>
      <option>Protein Shaker</option>
      <option>Gloves</option>
      <option>Splash Guards</option>
      <option>Massagers</option>
      <option>Sun Blocks</option>
      <option selected>Sports Cleaners</option>
      </select></td>"; 
}
  echo "</tr>";
  echo "<tr>";
  echo "<td><label for='prod_desc'>Description:</label></td>
        <td><textarea name='prod_desc' id='prod_desc' class='col2'>$prod_desc</textarea></td>";
  echo "<td></td><td><table><tr>";
  echo '<img src="data:image/jpeg;base64,' . base64_encode( $row['prod_pic'] ) . '" width="100" border="1px"/><br>';
  echo "<td><label for='prod_pic'>Upload Image:</label><br><input type='file' name='prod_pic' class='col2' value=''/></td>";
  echo "</tr>";
  echo "<tr>";
  echo "<td><label for='prod_quantity'>Quantity:</label><br><input name='prod_quantity' id='prod_quantity' type='text' maxlength='10' class='col2' placeholder='ex. 10' value='$prodquantity'/></td>";
  echo "</tr>";
  echo "<tr>";
  echo "<td><form method='post'><button>Update this Entry!</button>";
  echo "<button><a href='javascript:history.back()'>Go back</a></button></td>"; 
  echo "</tr></table></td></table>";

  echo "</form>";






  }
  echo "</div>";
?>

    </div>

    </body>
</html>

0 个答案:

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