我有一个更新数据的表单。当我点击更新按钮时，它会更新数据库中的数据，但会在表单中显示旧数据，我必须再次刷新页面才能查看更新的数据。如果我更改页面的action，则会停止更新数据。
我希望更新页面在用户点击“提交”按钮时更新数据。
请告诉我解决这个问题的方法。
由于
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<script>
</script>
<link rel="stylesheet" type="text/css" href="stylesheet_dashboard.css" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Update Single Products</title>
</head>
<body>
<div id='Header'>
Logo
</div>
</body>
</html>
<?php
session_start();
if (isset ($_SESSION['username']) )
{
//echo "<div id='nav'";
echo "<ul><hr>
<li><a href='insert_product.php' >Add Product </a></li>
<li><a href='add_category.php'> Add Category </a></li>
<li><a href='add_sub_category.php'> Add Sub-Category </a></li>
<li><a href = 'view_products.php' >View All Products</a> </li>
<li><a href = 'all_categories.php' >View All Categories</a> </li>
<li><a href='view_all_sub_categories.php'>View All Sub Categories</a></li>
</ul></hr>";
include 'connect.php';
$id= $_GET['product_id'];
error_reporting(E_PARSE);
if (isset($id))
{
//$order_id =array();
echo "<a href='view_products.php' >view Products </a>";
/* $select_query= "select * from products Left join product_description
ON products.product_id=$id and product_description.product_id=$id";
*/
/*
$select_query= "select * from products Left join product_description
ON products.product_id=$id and product_description.product_id=$id";
*/
/*
$select_query= "SELECT products.*,product_description.* FROM products
INNER JOIN product_description
ON (products.product_id=$id AND product_description.product_id=$id
)";
*/
$select_query= "select * from products LEFT JOIN product_description
ON products.product_id='".$id."' and
product_description.product_id='".$id."'
where products.product_id='".$id."' ";
global $order_id;
global $i;
global $location;
// $image_form_query = "select * from product_images where product_id= $id";
// $image_form_run= mysql_query($image_form_query);
// $image_form_fetch= mysql_fetch_array($image_form_run);
// echo 'File '.$image_from_fetch['name'];
if(!$select_query_run= mysql_query($select_query))
{
echo mysql_error();
}
else
{
$product_images ="select * from product_images where product_id=$id";
$product_images_run =mysql_query($product_images);
while ($product_images_fetch =mysql_fetch_array($product_images_run))
{
$location[] =$product_images_fetch['images'];
}
$select_query_run2= mysql_query($select_query);
$fetch = mysql_fetch_array ($select_query_run2);
$fetch['product_id'];
echo "
<form action='update_single_product.php?product_id=$id' method='POST'
enctype='multipart/form-data' >
<table border=1>
<tr>
<td>
<label>Product Name:</label> </td> <td><input type='text'
name='product_name' value='".$fetch['name']."' />*Required</td></tr>
<tr><td><label>Item No:</label></td> <td><input type='text'
name='item_no' value='".$fetch['item_no']."'></td></tr>
<tr><td>Recipient </td> <td> <input type='text'
name='recipient' value='".$fetch['recipient']."' ></td></tr>
<tr><td> Total Carat Weight</td> <td><input type='text'
name= 'total_carat_weight' value='".$fetch['total_carat_weight']."' ></td></tr>
<tr><td> Metal </td><td><input type='text'
name='metal' value='".$fetch['metal']."' ></td></tr>
<tr><td> Stone Shape </td><td><input type='text'
name='stone_shape' value='".$fetch['stone_shape']."' ></td></tr>
<tr><td> Stone Type</td><td> <input type='text'
name='stone_type' value='".$fetch['stone_type']."'></td></tr>
<tr><td> Stone Setting</td><td> <input type='text'
name='stone_setting' value='".$fetch['stone_setting']."'></td></tr>
<tr><td> Wastage </td><td><input type='text'
name='wastage' value='".$fetch['wastage']."'></td></tr></br></br>
<tr><td> Retail_price </td><td><input type='text'
name='retail_price' value='".$fetch['retail_price']."'></td></tr>
<tr><td> Actual Price: </td><td> <input type= 'text'
name= 'actual_price' value='".$fetch['actual_price']."' /></td></tr>*Required
<tr><td> Description:</td><td><input type='text'
name='description' value='".$fetch['description']."' /></td></tr>
<tr><td> Image1:</td><td> <input type='file'
name= 'files[]' >
<img src='$location[0]' height='60' width='60' > </td></tr> *Required
<tr><td> Image2:</td><td> <input type='file'
name= 'files[]' >
<img src= '$location[1]' height='60' width='60'>
</td></tr>
<tr><td> Image3:</td><td> <input type='file'
name= 'files[]' >
<img src = '$location[2]' height='60' width='60'>
</td></tr></table> ";
/*------------------
Drop Down List Start
------------------ */
echo "<select name='category'>";
$select_query= 'Select * from category';
$select_query_run = mysql_query($select_query);
$sub_category_query= "Select * from sub_categories";
$sub_query_run= mysql_query($sub_category_query);
while ($select_query_array= mysql_fetch_array($select_query_run) )
{
echo "<option value='".$select_query_array['category_id']."' >".
htmlspecialchars($select_query_array["name"]).
"<option value='".$sub_query_run['sub_category_id']."' >" .
htmlspecialchars($sub_query_run['sub_category_name']). "</option>".
"</option>";
}
echo "</br>";
$selectTag= "</br><input type='submit' value='Update Product' /></select></form>";
echo "</div></div>";
echo $selectTag;
//NEW $_POST ADDING
//To Avoid Update Problem
if (isset($_POST['product_name']) || isset ($_POST['item_no']) || isset ($_POST['recipient'])
|| isset($_POST['total_carat_weight']) || isset ($_POST['metal']) || isset($_POST['stone_shape'])
|| isset($_POST['stone_setting']) || isset($_POST['wastage']) || isset($_POST['retail_price'])
|| isset($_POST['actual_price']) && isset($_POST['description']) )
{
/*-----------------
Drop Down List End
------------------*/
$product_name = $_POST['product_name'];
$item_no= $_POST['item_no'];
$recipient= $_POST['recipient'];
$total_carat_weight= $_POST['total_carat_weight'];
$metal= $_POST['metal'];
$stone_shape= $_POST['stone_shape'];
$stone_type= $_POST['stone_type'];
$stone_setting= $_POST['stone_setting'];
$wastage= $_POST['wastage'];
$retail_price= $_POST['retail_price'];
$actual_price= $_POST['actual_price'];
$description= $_POST['description'];
$query= "Update products set name='".$product_name."'
where product_id=$id";
$query2="Update product_description set recipient='".$recipient."' ,
total_carat_weight='".$total_carat_weight."', metal='".$metal."',
stone_shape='".$stone_shape."' , stone_type='".$stone_type."',
stone_setting='".$stone_setting."', wastage='".$wastage."',
retail_price='".$retail_price."',
actual_price='".$actual_price. "',
description='".$description."'
where product_id=$id ";
$insert_query= "insert into product_description
VALUES($id,'$item_no','$recipient',
'$total_carat_weight','$metal','$stone_shape',
'$stone_type','$stone_setting', '$wastage',
'$retail_price','$price' ,'$description' ) ";
$insert_query_run= mysql_query($insert_query);
$query_run= mysql_query($query);
$query_run2= mysql_query($query2) ;
/*-----------------
IMAGE QUERY 2
------------------*/
/*
if (isset($_FILES['files'])
|| ($_FILES["files"]["type"] == "image/jpeg"))
{
foreach($_FILES['files']['tmp_name'] as $key=> $tmp_name)
{
//echo $tmp_name."<br>";
echo 'number<br>';
echo $image_name= $_FILES["files"]["name"][$key];
$random_name= rand().$_FILES["files"]["name"][$key];
$folder="upload/products/" .$random_name;
move_uploaded_file($_FILES["files"]["tmp_name"][$key],
"upload/products/" . $random_name);
echo '<br>';
echo $sql= "update product_images set name= '$random_name',
images= '$folder' where product_id= $id ";
if ($query_run= mysql_query($sql))
{
echo '<br>';
echo 'Done';
}
else
{
echo mysql_error();
}
}
}
*/
/*-----------------
IMAGE QUERY 2- END
------------------*/
/*
echo "Print Arrray </br>";
print_r ($_FILES['files']['name']);
echo "Print Arrray </br>";
*/
/*-------------------
IMAGE-QUERY Test 002
--------------------*/
$allowedExts = array("gif", "jpeg", "jpg", "png");
$extension = end(explode(".", $_FILES["files"]["name"]));
if (isset($_FILES['files'])
|| ($_FILES["files"]["type"] == "image/jpeg")
&& in_array($extension, $allowedExts))
{
//$i=1;
echo "Printing Number Count </br>";
echo count($_FILES['files']);
echo "<br>Counting End";
//print_r($_FILES['files']['name']);
//echo "$_FILES['files']['name']";
/*-----------------------
Taking Current Order_id
------------------------*/
//$order_sql= "select MAX(ord) from product_images";
$order_sql= "SELECT ord from product_images where product_id=$id";
$order_sql_run= mysql_query($order_sql);
echo mysql_error();
//UNDOOOO ooo OOo oooOO oOo oOOOoo OooO oOo
if ($_FILES['files']['name']=="")
{
echo "No Update";
}
else
{
$uploaded_files = array_filter($_FILES['files'], function($file){
return $file['size'];
});
echo "Stack ";
print count($uploaded_files);
echo "Stack ";
// for($i=0; $i<= $order_fetch=mysql_fetch_array($order_sql_run) ; $i++)
for($i=0; $i<= $order_fetch=mysql_fetch_array($order_sql_run) ; $i++)
// while ($order_fetch= mysql_fetch_array($order_sql_run))
{
//echo 'ID '. $order_id[$i]=$order_fetch[(ord)] ;
$order_id[$i]=$order_fetch[(ord)] ;
// foreach($_FILES['files']['tmp_name'] as $key=> $tmp_name)
// {
//$image_sql= "select image_id from product_images where ";
//echo $tmp_name."<br>";
//echo 'number<br>';
// echo $image_name= $_FILES["files"]["name"][$key];
$image_name= $_FILES["files"]["name"][$i];
//Old Method Of Taking Name
$random_name= rand().$_FILES["files"]["name"][$i];
//New Method of taking Name
/*
$image_extension= $_FILES["files"]["name"];
$image_extension_pos= strpos($image_extension,'.');
echo "ImageExtension ". $image_extension_substr=
substr($image_extension,$image_extension_pos,5);
*/
//$random_name= rand().$i;
$random_name= rand().$_FILES["files"]["name"][$i];
$folder="upload/products/" .$random_name;
move_uploaded_file($_FILES["files"]["tmp_name"][$i],
"upload/products/" . $random_name);
//print_r ($order_id);
/*
echo 'Val1 '. $val1= $order_id[1];
echo 'Val2 '. $val2= $order_id[2];
echo 'Val3 '. $val3= $order_id[3];
*/
echo '<br>';
echo $sql= "update product_images set name= '$random_name',
images= '$folder' where product_id= $id and
ord=$order_id[$i] ";
/*
echo $sql= "update product_images set name= '$random_name',
images= '$folder' where product_id= $id and
ord=$val1 ";
echo $sql2= "update product_images set name= '$random_name',
images= '$folder' where product_id= $id and
ord=$val2 ";
echo $sql3= "update product_images set name= '$random_name',
images= '$folder' where product_id= $id and
ord=$val3 ";
*/
// mysql_query($sql2);
// mysql_query($sql3);
if ($query_run= mysql_query($sql))
{
//mysql_query ($sql2);
//mysql_query ($sql3);
echo '<br>';
echo 'Done';
header ('Location:view_products.php ');
}
else
{
echo mysql_error();
}
}
//i=$i+1;
}
//}
/*-------------------
IMAGE-QUERY Test 002
--------------------*/
}
//echo 'Printing Array<br>';
/*-----------------------
Taking Current Order_id
------------------------*/
if($query_run && $query2)
{
echo "Records have been inserted. Please go to
<a href='view_products.php'>View Products page</a>to see the Updates";
}
elseif (mysql_affected_rows()==1)
{
$insert_query= "insert into product_description
VALUES($id,'$item_no','$recipient',
'$total_carat_weight','$metal','$stone_shape',
'$stone_type','$stone_setting', '$wastage',
'$retail_price','$price' ,'$description' ) ";
if ($insert_query_run= mysql_query($insert_query))
{
echo "<br> Insert Query Runs!!! </br>";
}
else
{
echo mysql_error();
}
}
else
{
echo mysql_error()."Please fill the Required Fields";
}
}
}
}
else
{
echo "Invalid Product! Go back to";
echo "<a href='dashboard.php'> Dashboard</a>";
}
}
else
{
echo "You Must need to Log in To Visit this Page!";
}
?>
答案 0 :(得分：0)
如果您要在同一页面上发布数据，请尝试关注。
<input type='text' value='<?php echo $_POST['field_name']; ?>' name='field_name' />
同样明智的你可以用于所有输入。
您也可以使用AJAX
答案 1 :(得分：0)
我假设您有一个处理更新的页面？在更新之后，你应该想要回到header('Location:');页面。这应该可以解决你的问题。
答案 2 :(得分：0)
Please follow this link，已经在这里回答了
我建议你使用AJAX调用函数
<script type="text/javascript">
function updatePage() {
$.get("your php file name here", function() {
location.reload();
});
}
</script>