I built an Admin-login using sessions, however it doesn't work, it requests me to login again. It does not recognize the session.
What's wrong?
<!DOCTYPE HTML>
<html>
<head>
<?php
session_start();
include "../header.php";
echo $_SESSION['username'];
?>
<title></title>
</head>
<body dir="rtl">
<?php if(!isset($_SESSION['username'])) { ?>
<h1>כניסה לפאנל ניהול</h1>
<form action="index.php" method="post">
<input name="adminName" placeholder="שם משתמש">
<br>
<input name="adminPass" placeholder="סיסמה">
<br>
<input type="submit" name="login" value="כניסה" class="btn btn-primary">
</form>
<br>
<?php
$username = $_POST['adminName'];
$password = $_POST['adminPass'];
if(isset($_POST['login'])) {
$connect_db = mysql_connect("X", "X", "X");
$select_db = mysql_select_db("X");
$login_query = mysql_query("SELECT * FROM `X`.`admin_login` WHERE `Username` = '$username' and `Password` = '$password';");
$login_num = mysql_num_rows($login_query);
if($login_num == 1) {
$da = mysql_query("SELECT * FROM `X`.`admin_login` WHERE `Username` = '".$_SESSION['username']."'");
while($row = mysql_fetch_array($da)) {
$_SESSION['username'] = $username;
$_SESSION['name'] = $row['Name'];
$_SESSION['date'] = $row['Date'];
}
echo '<div class="alert alert-success">
<strong>הצלחה!</strong> התחברת בהצלחה לפנאל ניהול! <a href="index.php">רענן</a>
</div>';
}
else {
echo '<div class="alert alert-warning">
<strong>שגיאה:</strong> שם המשתמש או הסיסמה אינם נכונים
</div>';
}
}
}
else if(isset($_SESSION['username'])) {
echo 'ברוך הבא, '.$_SESSION['username'];
}
?>
<br>
</body>
</html>
