我目前有一个登录系统，用户可以在其中以用户身份注册和登录。
当用户登录后，他们应该能够上传个人资料图片。
我遇到的问题是，当我按下“注册”按钮时，我将重定向到此 URL ( http://localhost/php51/login.php) 而不是此 ( http://localhost/php51/index.php)。
事情是，当用户注册后，用户应该在 index.php 上弹出并显示用户的默认个人资料图片。
相反，我在 ( http://localhost/php51/login.php) 上得到了一个空白页。
这是我的数据库，包含以下列:
我的数据库中有两个表，名为 (loginsystem)
这两个表是:
包含列(id、status、userid)的表“profileimg”
和包含列(user_email、user_id、user_name、user_password、user_phone、user_zip)的表“users”
这是我的代码:
INDEX.php
<?php
session_start();
include_once 'dbh.php';
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
</head>
<body>
<?php
// Check if there is users
$sql = "SELECT * FROM users";
$result = mysqli_query($conn, $sql);
if(mysqli_num_rows($result) > 0) {
while ($row = mysqli_fetch_assoc($result)) {
$id = $row['user_id'];
$sqlImg = "SELECT * FROM profileimg WHERE userid='$id'";
$resultImg = mysqli_query($conn, $sqlImg);
while ($rowImg = mysqli_fetch_assoc($resultImg)) {
echo "<div>";
if($rowImg['status'] == 0) {
echo "<img src='uploads/profile".$id.".jpg'";
} else {
echo "<img src='uploads/profiledefault.jpg'";
}
echo $row['name'];
echo "</div>";
}
}
} else {
echo "No registered users :";
}
//Her checker vi for om man er logget ind,
//og viser herefter upload FORM
if (isset($_SESSION['id'])) {
if ($_SESSION['id'] == 1) {
echo " You are logged in!";
}
//If the user is logged in, we allow the user to upload a profile image
echo "<form action = 'upload.php' method='POST' enctype = 'multipart/form-data'>
<input type = 'file' name = 'file'>
<button type = 'submit' name = 'submit'>UPLOAD FILE</button>
</form>";
} else {
echo " You are not logged in!";
echo "<form action='login.php' method='POST'>
<input type='text' name='name' placeholder='Name'>
<input type='text' name='phone' placeholder='phone'>
<input type='text' name='email' placeholder='email'>
<input type='text' name='zip' placeholder='zip'>
<input type='password' name='password' placeholder='password'>
<button type ='submit' name='submitSignup'>Signup</button>
</form>";
}
?>
<!--We use HTML forms when we want to upload images or files-->
<!--The form HAS to be set as a POST method, and it needs the "enctype" attribute, which specifies that the content we are submitting using the form is a file-->
<p> Login as user </p>
<form action="login.php" method="POST">
<button type="submit" name="submitLogin"> Login </button>
</form>
<p> Logout as user </p>
<form action="logout.php" method="POST">
<button type="submit" name = "submitLogout">Logout</button>
</form>
</body>
</html>
LOUGOUT.php
<?php
session_start();
session_unset();
session_destroy();
header("Location: index.php");
UPLOAD.php
<?php
//First we check if the form has been submitted
if (isset($_POST['submit'])) {
//Then we grab the file using the FILES superglobal
//When we send a file using FILES, we also send all sorts of information regarding the file
$file = $_FILES['file'];
//Here we get the different information from the file, and assign it to a variable, just so we have it for later
//If you use "print_r($file)" you can see the file info in the browser
$fileName = $file['name'];
$fileType = $file['type'];
//The "tmp_name" is the temporary location the file is stored in the browser, while it waits to get uploaded
$fileTempName = $file['tmp_name'];
$fileError = $file['error'];
$fileSize = $file['size'];
//Later we are going to decide the file extensions that we allow to be uploaded
//Here we are getting the extension of the uploaded file
//First we split the file name into name and extension
$fileExt = explode('.', $fileName);
//Then we get the extention
$fileActualExt = strtolower(end($fileExt));
//Here we declare which extentions we want to allow to be uploaded (You can change these to any extention YOU want)
$allowed = array("jpg", "jpeg", "png", "pdf");
//First we check if the extention is allowed on the uploaded file
if (in_array($fileActualExt, $allowed)) {
//Then we check if there was an upload error
if ($fileError === 0) {
//Here we set a limit on the allowed file size (in this case 500mb)
if ($fileSize < 500000) {
//We now need to create a unique ID which we use to replace the name of the uploaded file, before inserting it into our rootfolder
//If we don't do this, we might end up overwriting the file if we upload a file later with the same name
//Here we create a unique ID based on the current time, meaning that no ID is identical. And we add the file extention type behind it.
$fileNameNew = uniqid('', true).".".$fileActualExt;
//Here we define where we want the new file uploaded to
$fileDestination = 'uploads/'.$fileNameNew;
//And finally we upload the file using the following function, to send it from its temporary location to the uploads folder
move_uploaded_file($fileTempName, $fileDestination);
//Going back to the previous page
header("Location: index.php");
}
else {
echo "Your file is too big!";
}
}
else {
echo "There was an error uploading your file, try again!";
}
}
else {
echo "You cannot upload files of this type!";
}
}
SIGNUP.php
<?php
include_once 'dbh.php';
$name = $_POST['name'];
$phone = $_POST['phone'];
$email = $_POST['email'];
$zip = $_POST['zip'];
$password = $_POST['password'];
$sql = "INSERT INTO users (name, phone, email, zip, password)
VALUES ('$name', '$phone', '$email', '$zip', '$password')";
mysqli_query($conn, $sql);
$sql = "SELECT * FROM users WHERE name = '$name' AND phone='$phone'";
$result = mysqli_query($conn, $sql);
if (mysqli_num_rows($result) > 0) {
while($row = mysqli_fetch_assoc($result)) {
$userid = $row['user_id'];
$sql = "INSERT INTO profileimg (userid, status)
VALUES ('$userid', 1)";
mysqli_query($conn, $sql);
header("Location: index.php");
}
} else {
echo "Error";
}
DBH.PHP
<?php
$conn = mysqli_connect("localhost", "root", "", "loginsystem");
LOGIN.PHP
<?php
session_start();
if (isset($_POST['submitLogin'])) {
$_SESSION['id'] = 1;
header("Location: index.php");
}
最佳答案
在您的文件 index.php 中，您需要更改行
echo "<form action='login.php' method='POST'>
到
echo "<form action='signup.php' method='POST'>
现在您将注册数据发送到错误的地方
关于javascript - PHP 注册从返回到错误的 URL 而不是索引，数据库错误？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/55241580/