[英]Edit/Update data in php through AJAX
在我的
index.php<\/code>中,我從數據庫中獲取數據。
我在上面放了一個編輯按鈕,我使用了一個數據表來查看這個表單中的數據信息。
我有四個字段:
Name<\/code> ,
Age<\/code> ,
Email<\/code> ,
Update<\/code> through
mysqli_fetch_array<\/code>我已經獲取了數據。
這是
index.php<\/code>文件:
<?php
//including the database connection file
include_once("config.php");
//fetching data in descending order (lastest entry first)
//$result = mysql_query("SELECT * FROM users ORDER BY id DESC"); // mysql_query is deprecated
// using mysqli_query instead
?>
<html>
<head>
<title>Homepage</title>
<link rel="stylesheet" href="DataTables/datatables.css" type="text/css">
<link rel="stylesheet" href="DataTables/DataTables/css/dataTables.bootstrap.css" type="text/css">
<link rel="stylesheet" href="DataTables/DataTables/css/jquery.dataTables.css" type="text/css">
<script src="DataTables/datatables.js"></script>
<script src="style/jquery-3.2.1.js"></script>
<script src="style/datatable.js"></script>
<script src="DataTables/DataTables/js/dataTables.bootstrap.js"></script>
<script src="DataTables/DataTables/js/jquery.dataTables.js"></script>
</head>
<body>
<a href="add.html">Add New Data</a><br/><br/>
<table id="datatable" class="display" width='100%' border=0>
<thead>
<tr bgcolor='#CCCCCC'>
<td>Name</td>
<td>Age</td>
<td>Email</td>
<td>Update</td>
</tr>
</thead>
<?php
//while($res = mysql_fetch_array($result)) { // mysql_fetch_array is deprecated, we need to use mysqli_fetch_array
//$action=$_POST["action"];
//if($action=='showroom')
{
$result = mysqli_query($mysqli, "SELECT * FROM users ORDER BY id DESC");
while ($res = mysqli_fetch_array($result)) {
echo "<tr>";
echo "<td>" . $res['name'] . "</td>";
echo "<td>" . $res['age'] . "</td>";
echo "<td>" . $res['email'] . "</td>";
echo "<td><a href=\"edit.php?id=$res[id]\">Edit</a> | <a href=\"delete.php?id=$res[id]\" onClick=\"return confirm('Are you sure you want to delete?')\">Delete</a></td>";
}
}
?>
</table>
</body>
</html>
您正在同一文件上進行編輯和更新,因此必須在文件上添加條件。 如下更改代碼:
edit.php
<?php
// including the database connection file
include_once("config.php");
if($_SERVER['REQUEST_METHOD'] == "POST")
{
$id = $_POST['id'];
$name = $_POST['name'];
$age = $_POST['age'];
$email = $_POST['email'];
// checking empty fields
if(empty($name) || empty($age) || empty($email)) {
if(empty($name)) {
echo "<font color='red'>Name field is empty.</font><br/>";
}
if(empty($age)) {
echo "<font color='red'>Age field is empty.</font><br/>";
}
if(empty($email)) {
echo "<font color='red'>Email field is empty.</font><br/>";
}
} else {
//updating the table
$result = mysqli_query($mysqli, "UPDATE users SET name='$name',age='$age',email='$email' WHERE id=$id");
//redirectig to the display page. In our case, it is index.php
header("Location: index.php");
}
}
//getting id from url
$id = $_GET['id'];
//selecting data associated with this particular id
$result = mysqli_query($mysqli, "SELECT * FROM users WHERE id=$id");
while($res = mysqli_fetch_array($result))
{
$name = $res['name'];
$age = $res['age'];
$email = $res['email'];
}
?>
<html>
<head>
<title>Edit Data</title>
<script src="style/jquery-3.2.1.js"></script>
<script src="style/insert.js"></script>
<script src="style/view.js"></script>
<script src="style/edit.js"></script>
</head>
<body>
<a href="index.php">Home</a>
<br/><br/>
<p id="message"></p>
<form name="form1" method="POST" action="edit.php">
<table border="0">
<tr>
<td>Name</td>
<td><input type="text" name="name" value="<?php echo $name;?>"></td>
</tr>
<tr>
<td>Age</td>
<td><input type="text" name="age" value="<?php echo $age;?>"></td>
</tr>
<tr>
<td>Email</td>
<td><input type="text" name="email" value="<?php echo $email;?>"></td>
</tr>
<tr>
<td><input type="hidden" name="id" value=<?php echo $_GET['id'];?>></td>
<td><input type="submit" name="update" id="update" value="Update"></td>
</tr>
</table>
</form>
</body>
</html>
顯示 html、ajax 和 php 顯示 html、ajax 和 ph顯示 html、ajax 和 php p顯示 html、ajax 和 php
"
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.