I want to store data (id, profile_image, caption) from another table (I just download the code for uploading images) The problem is when I am about to save the data, processForm.php always give me a zero value for Session ID which is my current ID is "1". I'm a newbie here.
(login.php)
<?php
// Initialize the session
session_start();
// Check if the user is already logged in, if yes then redirect him to
welcome page
if(isset($_SESSION["loggedin"]) && $_SESSION["loggedin"] === true){
header("location: welcome.php");
exit;
}
// Include config file
require_once "config.php";
// Define variables and initialize with empty values
$username = $password = "";
$username_err = $password_err = "";
// Processing form data when form is submitted
if($_SERVER["REQUEST_METHOD"] == "POST"){
// Check if username is empty
if(empty(trim($_POST["username"]))){
$username_err = "Please enter username.";
} else{
$username = trim($_POST["username"]);
}
// Check if password is empty
if(empty(trim($_POST["password"]))){
$password_err = "Please enter your password.";
} else{
$password = trim($_POST["password"]);
}
// Validate credentials
if(empty($username_err) && empty($password_err)){
// Prepare a select statement
$sql = "SELECT id, username, password FROM users WHERE username = ?";
if($stmt = mysqli_prepare($link, $sql)){
// Bind variables to the prepared statement as parameters
mysqli_stmt_bind_param($stmt, "s", $param_username);
// Set parameters
$param_username = $username;
// Attempt to execute the prepared statement
if(mysqli_stmt_execute($stmt)){
// Store result
mysqli_stmt_store_result($stmt);
// Check if username exists, if yes then verify password
if(mysqli_stmt_num_rows($stmt) == 1){
// Bind result variables
mysqli_stmt_bind_result($stmt, $id, $username, $hashed_password);
if(mysqli_stmt_fetch($stmt)){
if(password_verify($password, $hashed_password)){
// Password is correct, so start a new session
session_start();
// Store data in session variables
$_SESSION["loggedin"] = true;
$_SESSION["id"] = $id;
$_SESSION["username"] = $username;
// Redirect user to welcome page
header("location: welcome.php");
} else{
// Display an error message if password is not valid
$password_err = "The password you entered was not valid.";
}
}
} else{
// Display an error message if username doesn't exist
$username_err = "No account found with that username.";
}
} else{
echo "Oops! Something went wrong. Please try again later.";
}
}
// Close statement
mysqli_stmt_close($stmt);
}
// Close connection
mysqli_close($link);
}
?>
<!DOCTYPE html>
<html lang="en">
<link rel="stylesheet" type="text/css" href="style.css">
<link rel="icon" href="logo2.png" type="image">
<head>
<title>Fox - Log In | Sign Up</title>
<meta charset="windows-1252">
</head>
<body>
<div class="header" id="myHeader" >
<img src="logo.png" alt="Fox Logo" width="5%" height="20%">
<div class="tooltip">
<img src="text.png" alt="Fox text" width="50%" height="15%" usemap="#foxlogo">
<span class="tooltiptext">Go To Fox Home</span>
</div>
<map name="foxlogo">
<area shape="rect" coords="0,0,133,126" href="login.php">
</map>
</div>
<div class="container">
<img class="img" src="bg2.jpg">
</div>
<div class="signup"><br><br><br><br><br>
<h1 style="text-align:center; font-size:12;">Log In</h1><br>
<form style="margin-left:25px; margin-top: -20px;" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]); ?>" method="post">
<div class="form-group <?php echo (!empty($username_err)) ? 'has-error' : ''; ?>">
<p style="font-size: 14px; color: white;margin-left: 0px;width: 980px;">Username</p>
<input placeholder="Enter Username" type="text" name="username" class="form-control" value="<?php echo $username; ?>">
<br><span class="help-block"><?php echo $username_err; ?></span>
</div>
<div class="form-group <?php echo (!empty($password_err)) ? 'has-error' : ''; ?>">
<p style="font-size: 14px; color: white;margin-left: 0px;width: 980px;">Password</p>
<input placeholder="Enter Password" type="password" name="password" class="form-control" >
<span class="help-block"><?php echo $password_err; ?></span>
</div>
<div class="form-group">
<input style="margin-top:20px;" type="submit" class="button" value="Login">
</div>
<p2><a href="register.php" type="link">Sign up now</a></p2>
</form>
</div>
<div>
<img class="user" src="user.png">
</div>
<a type="link2" style="margin:30px; text-decoration: none;" href="#">Terms & Policies</a>
<a type="link2" style="text-decoration: none;" href="#">Help</a>
</div>
</body>
</html>
(welcome.php)
<?php
require_once "config.php";
// Initialize the session
session_start();
// Check if the user is logged in, if not then redirect him to login page
if(!isset($_SESSION["loggedin"]) || $_SESSION["loggedin"] !== true){
header("location: login.php");
exit;
}
?>
<!DOCTYPE html>
<html lang="en">
<link rel="stylesheet" type="text/css" href="home.css">
<link rel="icon" href="logo2.png" type="image">
<head>
<meta charset="UTF-8">
<title>Fox | Home</title>
<style type="text/css">
body{ font: 14px sans-serif; text-align: center; }
</style>
</head>
<body>
<br>
<a style="margin-left:90%;position: relative;" href="logout.php" name="signout" class="btn btn-danger">Sign Out</a>
<div style="margin-right:96%"class="tooltip">
<img style="margin-right: 96%;margin-top:0%;" src="logo.png" alt="Fox Logo" width="100%" usemap="#foxlogo">
<span class="tooltiptext">Go To Fox Home</span>
</div>
<map name="foxlogo">
<area shape="rect" coords="0,0,133,126" href="welcome.php">
</map>
<hr>
<div class="profile">
<div class="page-header">
<h1><b><?php echo htmlspecialchars($_SESSION["username"]); ?></b></h1>
<div class="container">
<img name="profile" class="image" src="images/placeholder.png" id="profileDisplay" style="display: block;width: 45%;margin: 10px auto;border-radius:50%;"><br>
<input type="file" name="profileImage" id="profileImage" style="display: none;">
<div class="overlay">
<div class="text"><br>
<a href="updateprofile.php" name="update" class="btn btn-danger">Update Profile</a><br><br><br>
<a href="#" name="View" class="btn btn-danger">View profile</a>
</div>
</div>
<?php
$con = mysqli_connect("localhost","root","","demo");
$q = mysqli_query($con,"SELECT * FROM users WHERE id ='{$_SESSION["id"]}'");
while($row = mysqli_fetch_assoc($q)){
echo $row['created_at'];
}
?>
</div>
<p>
<a href="reset-password.php" class="btn btn-warning">Reset Your Password</a><br><br><br>
</p>
</div>
</body>
</html>
(config.php)
<?php
/* Database credentials. Assuming you are running MySQL
server with default setting (user 'root' with no password) */
define('DB_SERVER', 'localhost');
define('DB_USERNAME', 'root');
define('DB_PASSWORD', '');
define('DB_NAME', 'demo');
/* Attempt to connect to MySQL database */
$link = mysqli_connect(DB_SERVER, DB_USERNAME, DB_PASSWORD, DB_NAME);
// Check connection
if($link === false){
die("ERROR: Could not connect. " . mysqli_connect_error());
}
?>
(updateprofile.php)
I try to echo my current id(1) in this form and it is fine. but in saving id in XAMPP php my admin gives me ZERO. processForm gives me zero value for my SESSION ID
picture1:I try to echo my ID and its fine
Picture2:After I upload a picture. it gives me a zero value for ID
<?php
require_once "config.php";
include 'processForm.php';
// Initialize the session
session_start();
// Check if the user is logged in, if not then redirect him to login page
if(!isset($_SESSION["loggedin"]) || $_SESSION["loggedin"] !== true){
header("location: login.php");
exit;
}
?>
<!DOCTYPE html>
<html lang="en">
<link rel="stylesheet" type="text/css" href="home.css">
<link rel="icon" href="logo2.png" type="image">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<head>
<meta charset="UTF-8">
<title>Fox | Home</title>
<style type="text/css">
body, html{ font: 14px sans-serif; text-align: center;height: 100%; width: 100%; }
</style>
</head>
<body>
<div style="margin-left:90%"class="tooltip">
<span class="tooltiptext">Go To Fox Home</span>
</div>
<map name="foxlogo">
<area shape="rect" coords="0,0,133,126" href="welcome.php">
</map>
</div>
<img style="margin-right: 90%; margin-top:2%;" src="logo.png" alt="Fox Logo" width="5%" usemap="#foxlogo">
<a style="margin-left:90%; margin-top:-5%; position: relative;" href="logout.php" name="signout" class="btn btn-danger">Sign Out</a>
<hr>
<div style="margin-left: 35%"class="container">
<div class="row">
<div class="col-4 offset-m-d4 form-div">
<form enctype="multipart/form-data" action="index.php" method="post" >
<h3 class="text-center">Upload Profile</h3>
<?php //echo htmlspecialchars($_SESSION["username"]);
echo " My id is {$_SESSION["id"]}"; ?>
<div class="form-group text-center">
<img src="images/placeholder.png" id="profileDisplay" onclick="triggerClick()" style="display: block;width: 60%;margin: 10px auto;border-radius:50%;">
<input type="file" name="profileImage" onchange="displayImage(this)" id="profileImage" style="display: none;">
</div>
<div clas="form-group">
<label for="caption">Caption</label>
<textarea name="caption" id="caption" class="form-control"></textarea>
</div>
<div class="form-group">
<br>
<button type="submit" name="save-user" class="btn btn-primary btn-block">Upload</button>
</div>
</form>
</div>
</div>
</div>
<br><br><br><br>
<script src="scripts.js"></script>
</body>
</body>
</html>
(processForm.php)
<?php
require_once "config.php";
//connect db
$conn = mysqli_connect('localhost','root','','demo');
if(isset($_POST['save-user'])){
$caption = $_POST['caption'];
$profileImageName =time() . '_' . $_FILES['profileImage']['name'];
$target = 'images/' . $profileImageName;
if(move_uploaded_file($_FILES['profileImage']['tmp_name'], $target)){
//* */
$sql = "INSERT INTO photos (id,profile_image,caption) VALUES ('{$_SESSION['id']}','$profileImageName','$caption')";
if (mysqli_query($conn, $sql)){
$msg="Image uploaded and saved to database";
$css_class = "alert-success";
}else{
$msg="Database error: Failed to save user";
$css_class = "alert-danger";
}
//
$msg="Image uploaded";
$css_class = "alert-success";
header("location: welcome.php");
}else{
$msg="Failed to upload";
$css_class = "alert-danger";
header("location: updateprofile.php");
}
}
you can add the output of the $_SESSION variable with a var_dump(); After the loggin and another one in the same moment of the saved of the photo in mysql , and compare??? I think that your (processForm.php) is missing at the beginning too ... session_start ();