php Header location not letting me into admin area - php

Question

I recently started learning PHP. I've been working on a basic login page. Everything works great locally, but when it's uploaded to ipage, it just reloads the login page. If I enter incorrect login info, it tells me that I entered something wrong.
Here's my code...
login.php:
<?php
ob_start();
session_start();
require 'connect.inc.php';
if (isset($_POST['submit'])) {
$uid = $_POST['uid'];
$pwd = $_POST['pwd'];
$uid = strip_tags($uid);
$pwd = strip_tags($pwd);
$uid = stripcslashes($uid);
$pwd = stripcslashes($pwd);
$uid = mysqli_real_escape_string($db, $uid);
$pwd = mysqli_real_escape_string($db, $pwd);
$sql = "SELECT * FROM users WHERE uid='$uid' LIMIT 1";
$query = mysqli_query($db, $sql);
$row = mysqli_fetch_array($query);
$id = $row['id'];
$db_password = $row['pwd'];
$pwd = password_verify($pwd, $row['pwd']);
if ($pwd == $db_password) {
//$_SESSION['username'] = $uid;
$_SESSION['id'] = $id;
header("Location: http://website.com/dashboard.php");
exit;
}else {
echo 'You didn\'t enter the correct information';
}
}
?>
dashboard.php:
<?php
ob_start();
session_start();
require 'connect.inc.php';
if (!isset($_SESSION['id'])) {
header("Location: http://website.com/login.php");
exit();
}
?>
any help would be appreciated very much...

Answer 1

I think the problem of your code lies in here
if ($pwd == $db_password) {
//$_SESSION['username'] = $uid;
$_SESSION['id'] = $id;
header("Location: http://website.com/dashboard.php");
exit;
}else {
echo 'You didn\'t enter the correct information';
}
password_verify() returns TRUE or FALSE and you are trying to check if it is equal to $db_password. As fas as I know this will not be true so even though the password you are typing in is correct, the page won't go anywhere because the if statement is not working properly.
So in your case, this is how I think you should have your code
<?php
ob_start();
session_start();
require 'connect.inc.php';
if (isset($_POST['submit'])) {
$uid = $_POST['uid'];
$pwd = $_POST['pwd'];
$uid = strip_tags($uid);
//$pwd = strip_tags($pwd);
$uid = stripcslashes($uid);
//$pwd = stripcslashes($pwd);
$uid = mysqli_real_escape_string($db, $uid);
//$pwd = mysqli_real_escape_string($db, $pwd);
$sql = "SELECT * FROM users WHERE uid='$uid' LIMIT 1";
$query = mysqli_query($db, $sql);
$row = mysqli_fetch_array($query);
$id = $row['id'];
$db_password = $row['pwd'];
$pwd = password_verify($pwd, $db_password);
if ( $pwd === TRUE ) {
//$_SESSION['username'] = $uid;
$_SESSION['id'] = $id;
header("Location: http://website.com/dashboard.php");
exit;
}else {
echo 'You didn\'t enter the correct information';
}
}