Index.php Page我是初学者。这是一个索引页面，我在其中打印登录的用户的名称，每当用户编辑他的详细信息时，我想更新用户名，我尝试更新它，它正在更新用户名，但是当我编辑详细信息时，我先注销然后再次登录，然后名称将更新。我想在用户编辑他的详细信息并重定向到索引页面时立即更新名称，就像 facebook 一样。我几乎花了一周来解决这个问题。如果 ajax 需要什么，请给我代码。谢谢
<?php
session_start();
require_once("inc/connection.php");
if (empty($_SESSION['usersession'])) {
header("Location: login.php");
}
if (isset($_SESSION['msg'])) {
echo $_SESSION['msg'];
unset($_SESSION['msg']);
}
?>
<!DOCTYPE html>
<html>
<head>
<title>WELCOME TO USER AREA</title>
<link rel="stylesheet" type="text/css" href="css/style.css">
</head>
<body>
<div id="main">
<nav id="nav">
<div class="logout">
WELCOME <?php echo $_SESSION['usersession']['name']; ?> // echo name of user
<a href="logout.php">Log out</a>
</div>
<ul>
<li><a href="index.php">Home</a></li>
<li><a href="register.php">Register</a></li>
<li><a href="edit.php">Edit</a></li>
<li><a href="delete.php">Delete(not recommended)</a></li>
</ul>
</nav>
<div class="para">
some text
</div>
</div>
</body>
</html>
编辑.php这是编辑.php代码
<?php
session_start();
if (empty($_SESSION['usersession'])) {
header("Location: login.php");
}
if (isset($_SESSION['msg'])) {
echo $_SESSION['msg'];
unset($_SESSION['msg']);
}
?>
<!DOCTYPE html>
<html>
<head>
<title>REGISTER HERE</title>
<link rel="stylesheet" type="text/css" href="css/style.css">
</head>
<body>
<div id="reg2">
<?php
if (isset($_POST['btn'])) {
$name = $_POST['name'];
$email = $_POST['email'];
$password = $_POST['password'];
$id = $_SESSION['usersession']['id'];
if (!empty($name && $email && $password)) {
if (!empty($password)) {
$password = sha1($password);
require_once("inc/connection.php");
$query = mysqli_query($conn, "UPDATE register SET name='$name',email='$email',password='$password' WHERE id='$id'");
if ($query) {
header("Location: index.php");
} else {
echo "not updated right now please try again later";
}
$_SESSION['msg'] = "Your detail has been updated successfully";
}
} else {
echo "please put your updated password";
}
}
?>
</div>
<div id="form">
<form method="post" action="edit.php">
<label>NAME</label><p>
<input class="int" type="text" class="nm" name="name" placeholder="Please Enter Your Name Here" value="<?php echo $_SESSION['usersession']['name']; ?>" /><p>
<label>EMAIL</label><p>
<input class="int" type="email" class="em" name="email" placeholder="Please Enter Your Email Here" value="<?php echo $_SESSION['usersession']['email']; ?>" /><p>
<label>PASSWORD</label><p>
<input class="int" type="password" name="password" placeholder="Please Enter Your new Password Here" />
<p></p>
<input type="hidden" name="id[]" value="<?php echo $_SESSION['usersession']['id']; ?>"/>
<input type="submit" name="btn" id="btu" value="Update">
</form>
</div>
</body>
</html>
更新数据库时，您没有更改 $_SESSION 中的值。您必须手动执行此操作。
// Add that under $_SESSION['msg'] = '....'
$_SESSION['usersession']['username'] = $name; // Same with email and password
请注意，您的代码容易受到 mysql 注入的影响。你应该mysql_real_escape_string避免这种情况。
此外，您甚至在输出<!DOCUMENT html>之前显示您的消息。请不要那样做。而是在 html 中的某个地方回显消息！