嗨，所以我一直遇到这个错误，我想知道如何解决它！这非常重要，因为这个项目是为了学位。
此表单主要用于上传youtube嵌入代码并在另一个页面中调用它们！ 我正在使用strip_tags，但似乎它不起作用，因为它表示未定义的变量$ video_title和$ video_code.So这是我第一次打开它时页面的样子：http://imgur.com/a/hTsW7 这是当我点击提交按钮时： http://imgur.com/a/ToVV8 我知道它有重复但我已经尝试了很多这里找到的选项，但似乎没有工作！我试过isset（）; ，我试过$ _POST []但没有更好的结果。我也试图改变整个注册和登录表格，但仍然没有！ 这些错误是什么以及为什么 我是PHP的新手，很抱歉这个错误的解释！
这是home_teacher_upload.php：
<?php
require_once("session.php");
require_once("class.user.php");
$teacher = new USER();
if(isset($_POST['btn-submit']))
{
$video_title = strip_tags($_GET['video_title']);
$video_code = strip_tags($_GET['video_code']);
if ($video_title == "") {
$error[]="Duhet të vendosni titullin fillimisht!";
}
echo "<h3>Videoja u ngarkua me sukses!</h3>";
}
try {
$stmt = $teacher->runQuery("SELECT video_title, video_code FROM videos WHERE video_title=:video_title OR video_code=:video_code");
$stmt->execute(array(':video_title'=>$video_title, ':video_code'=>$video_code));
$row=$stmt->fetch(PDO::FETCH_ASSOC);
if($row['video_title']==$video_title) {
echo "<h3>Ky titull është jo valid!</h3>";
}
else if($row['video_code']==$video_code) {
$error[] = "Kjo video aktualisht është e ngarkuar";
}
else
{
$teacher->submit_video($video_title,$video_code);
}
}
catch (PDOException $e) {
echo $e->getMessage();
}
?>
<link href="img/favicon.png" rel="shortcut icon" />
<!DOCTYPE html>
<head>
<link rel="stylesheet" href="bootstrap/css/bootstrap.min.css">
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Cookie">
<link rel="stylesheet" href="css/user.css">
<link rel="stylesheet" href="bootstrap/fonts/font-awesome.min.css">
<link href="https://fonts.googleapis.com/css?family=Fjalla+One" rel="stylesheet">
<link href="https://fonts.googleapis.com/css?family=Patua+One" rel="stylesheet">
<link href="https://fonts.googleapis.com/css?family=Bree+Serif" rel="stylesheet">
<link href="https://fonts.googleapis.com/css?family=Anton" rel="stylesheet">
<link href="https://fonts.googleapis.com/css?family=Hammersmith+One" rel="stylesheet">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link href="css/bootstrap.min.css" rel="stylesheet" media="screen">
<link href="css/bootstrap-theme.min.css" rel="stylesheet" media="screen">
<script type="text/javascript" src="jquery-1.11.3-jquery.min.js"></script>
<link rel="stylesheet" href="style.css" type="text/css" />
<link rel="stylesheet" type="text/css" href="css/user.css">
<title>Ngarkoni video!</title>
</head>
<script src="https://code.jquery.com/jquery-1.10.2.js"></script>
<body>
<nav class="navbar navbar-default navbar-fixed-top">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" style="
font-family: Bree Serif;">IB-Learning </a>
</div>
<div id="navbar" class="navbar-collapse collapse">
<ul class="nav navbar-nav navbar-right">
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">
<span class="glyphicon glyphicon-user"></span> <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="profile.php"><span class="glyphicon glyphicon-user"></span> Profili</a></li>
<li><a href="logout.php?logout=true"><span class="glyphicon glyphicon-log-out"></span> Dilni</a></li>
</ul>
</li>
</ul>
</div><!--/.nav-collapse -->
</div>
</nav>
<div class="clearfix"></div>
<div class="container-fluid" style="margin-top:80px;">
</div>
<div class="wanna" style="text-align: center;">
<h3 style="font-family: Hammersmith One;">Ngarkoni një video</h3></div>
<div class="form" style="text-align: center; margin-left: 431px;
padding-top: 13px;">
<form class="submit_video" method="POST" style="text-align: center;">
<div class="form-group" style="font-family: Bree Serif; width: 28%;">
<input type="text" class="form-control" name="video_title" required placeholder="Titulli i videos" style="text-align: center;"/>
</div>
<div class="form-group" style="font-family: Bree Serif;margin-left: -37px;">
<textarea name="video_code" class="form-control" style="width: 240px; margin: 0px 337px 0px 0px; height: 165px; text-align: center;" form="code" placeholder="Embed code i videos" required="true"></textarea>
</div>
<div class="button_form-group">
<button type="submit" class="btn btn-primary" style="margin-right: 415px;font-family: Bree Serif;" name="btn-submit">
Submit
</button>
</div>
</form>
</div>
<?php include('footer.php');?>
<script src="bootstrap/js/bootstrap.min.js"></script>
<style type="text/css">
h3{
font-family: Bree Serif;
text-align: center;
padding-left: 20px;
}
</style>
</body>
</html>
这是session.php：
<?php
session_start();
require_once 'class.user.php';
$session = new USER();
// if user session is not active(not loggedin) this page will help 'home.php and profile.php' to redirect to login page
// put this file within secured pages that users (users can't access without login)
if(!$session->is_loggedin())
{
// session no set redirects to login page
$session->redirect('login.php');
}
这是class.user.php：
<?php
require_once('dbconfig.php');
class USER
{
private $conn;
public function __construct()
{
$database = new Database();
$db = $database->dbConnection();
$this->conn = $db;
}
public function runQuery($sql)
{
$stmt = $this->conn->prepare($sql);
return $stmt;
}
public function register($uname,$umail,$upass)
{
try
{
$new_password = password_hash($upass, PASSWORD_DEFAULT);
$stmt = $this->conn->prepare("INSERT INTO tik_students(user_name,user_email,user_pass)
VALUES(:uname, :umail, :upass)");
$stmt->bindparam(":uname", $uname);
$stmt->bindparam(":umail", $umail);
$stmt->bindparam(":upass", $new_password);
$stmt->execute();
return $stmt;
}
catch(PDOException $e)
{
echo $e->getMessage();
}
}
public function register_teacher($t_uname,$t_umail,$t_upass)
{
try
{
$new_password = password_hash($upass, PASSWORD_DEFAULT);
$stmt = $this->conn->prepare("INSERT INTO tik_teachers(user_name,user_email,user_pass)
VALUES(:uname, :umail, :upass)");
$stmt->bindparam(":uname", $t_uname);
$stmt->bindparam(":umail", $t_umail);
$stmt->bindparam(":upass", $t_new_password);
$stmt->execute();
return $stmt;
}
catch(PDOException $e)
{
echo $e->getMessage();
}
}
public function doLogin($uname,$umail,$upass)
{
try
{
$stmt = $this->conn->prepare("SELECT user_id, user_name, user_email, user_pass FROM tik_students WHERE user_name=:uname OR user_email=:umail ");
$stmt->execute(array(':uname'=>$uname, ':umail'=>$umail));
$userRow=$stmt->fetch(PDO::FETCH_ASSOC);
if($stmt->rowCount() == 1)
{
if(password_verify($upass, $userRow['user_pass']))
{
$_SESSION['user_session'] = $userRow['user_id'];
return true;
}
else
{
return false;
}
}
}
catch(PDOException $e)
{
echo $e->getMessage();
}
}
public function doLogin_teacher($t_uname,$t_umail,$t_upass)
{
try
{
$stmt = $this->conn->prepare("SELECT user_id, user_name, user_email, user_pass FROM tik_teachers WHERE user_name=:uname OR user_email=:umail ");
$stmt->execute(array(':uname'=>$t_uname, ':umail'=>$t_umail));
$userRow=$stmt->fetch(PDO::FETCH_ASSOC);
if($stmt->rowCount() == 1)
{
if(password_verify($t_upass, $userRow['user_pass']))
{
$_SESSION['user_session'] = $userRow['user_id'];
return true;
}
else
{
return false;
}
}
}
catch(PDOException $e)
{
echo $e->getMessage();
}
}
public function submit_video($video_title,$video_code)
{
try
{
$stmt = $this->conn->prepare("INSERT INTO videos(video_title, video_code)
VALUES(:video_title, :video_code)");
$stmt->bindparam(":video_title", $video_title);
$stmt->bindparam(":video_code", $video_code);
$stmt->execute();
return $stmt;
}
catch(PDOException $e)
{
echo $e->getMessage();
}
}
public function is_t_loggedin()
{
if(isset($_SESSION['user_session']))
{
return true;
}
}
public function is_loggedin()
{
if(isset($_SESSION['user_session']))
{
return true;
}
}
public function redirect($url)
{
header("Location: $url");
}
public function doLogout()
{
session_destroy();
unset($_SESSION['user_session']);
return true;
}
}
?>
帮助将不胜感激
答案 0 :(得分：1)
注意：未定义的索引/未定义的偏移量
当您（或PHP）尝试访问未定义的索引时，会出现此通知 一个数组。
您需要先查看以下内容
if(isset($_GET['video_code'])){
}
所以在你的情况下
$video_code = isset($_GET['video_code']) ? strip_tags($_GET['video_code']): ' ';
在访问索引之前检查索引是否存在。
为此你可以使用
或
//isset()
$video_code = isset($_GET['video_code']) ? strip_tags($_GET['video_code']): '';
// OR
//array_key_exists()
$video_code = array_key_exists('video_code',$_GET) ? strip_tags($_GET['video_code']): '';