There is an error while redirecting the page from login to index(i.e server error // error 500). I used redirect_to function to call function.php from login.php file and i have included header function in function.php file. unfortunately, there is server error.I tried to solve it but i could not.i have posted my all four file.
login.php
<?php
require_once("../../includes/function.php");
require_once("../../includes/database.php");
require_once("../../includes/session.php");
require_once("../../includes/user.php");
if($session->is_logged_in()){
redirect_to("index.php");
}
//remember to give your form's submit tag a name= "submit" attribute
if(isset($_POST['submit'])){
$username = trim($_POST['username']);
$password = trim($_POST['password']);
//check database to see if username/password exit.
$found_user = User::authenticate($username,$password);
if($found_user){
$session->login($found_user);
redirect_to("index.php");
}else{
//username/password combo was not found in the database
$message ="Username/password incorrect.";
echo $message;
}
}
else{//form has not been submitted
$username = "";
$password = "";
}
?>
<?php if(isset($database)) {
$database->close_connection();
}
?>
<html>
<head>
<title>Photo Gallery</title>
<link href="boot/css/bootstrap.css" media="all" rel ="stylesheet" type
="text/css"/>
</head>
<body>
<div id="header">
<h1>Photo Gallery</h1>
</div>
<div id ="main">
<h2>staff login</h2>
</div>
<form action="login.php" method="post">
<table>
<tr>
<td>Username:</td>
<td>
<input type = "text" name = "username" maxlength="30" value="<?php echo
htmlentities($username);?>"/>
</td>
</tr>
<tr>
<td>Password:</td>
<td>
<input type = "password" name= "password" maxlength = "30" value ="
<?php echo htmlentities($password);?>"/>
</td>
</tr>
<tr>
<td>
<input type="submit" name="submit" value = "login"/>
</td>
</tr>
</table>
</form>
</body>
</html>
index.php
<?php
require_once('../../includes/function.php');
require_once('../../includes/session.php');
if(!$session->is_logged_in()) {
redirect_to("login.php");
}
?>
<html>
<head>
<title>Photo Gallery</title>
<link href="boot/css/bootstrap.css" media="all" rel ="stylesheet" type
="text/css"/>
</head>
<body>
<div id="header">
<h1>Photo Gallery</h1>
</div>
<div id ="main">
<h2>staff login</h2>
</div>
<div id = "footer">Copyright<?php echo date("Y", time());?>,prayash
bhari</div>
</body>
</html>
function.php
<?php
ob_start();
function strip_zeros_from_data($marked_string =""){
//first remove the marked zeros
$no_zeros = str_replace('*0','',$marked_string);
//then remove any remaining marks
$cleaned_string = str_replace('*','', no_zeors);
return $cleaned_string;
}
function redirect_to($location = NULL){
if ($location != NULL){
header("Location : {$location}");
exit;
}
}
function output_message($message = ""){
if($empty($message)){
return "<p class = \"message\">{$message}</p>";
}
else{
return "";
}
}
function __autoload($class_name){
$class_name = strtolower($class_name);
$path = "../includes/{$class_name}.php";
if(file_exists($path)){
require_once($path);
}else{
die("the file {$class_name}.php could not found.");
}
}
ob_end_flush();
?>
sesssion.php
<?php
// A class to help work with Sessions
//In our case, primarily to mange logging users in and out
//keep in mind when working with sessions that it is generally
//inadvisable to store DB-relate objects in sessions
class Session{
private $logged_in = false;
public $user_id;
function __construct(){
session_start();
$this->check_login();
if($this->logged_in){
//actions to take right away if user is logged in
}else{
//actions to take right away if user is not logged in
}
}
public function is_logged_in(){
return $this->logged_in;
}
public function login($user){
//database should find user based on username/password
if($user){
$this->user_id = $_SESSION['user_id'] = $user -> id;
$this->logged_in = true;
}
}
public function logout(){
unset($_SESSION['user_id']);
unset($this->user_id);
$this->logged_in = false;
}
private function check_login(){
if(isset($_SESSION['user_id'])){
$this->user_id = $_SESSION['user_id'];
$this->logged_id = true;
}else{
unset($this->user_id);
$this->logged_in = false;
}
}
}
$session = new Session()
?>
