<?php
header('Access-Control-Allow-Origin: *');
?>
<?php


$servername = "localhost";
$server_username = "user1";
$server_username2 = "user2";
$server_password = "password";
$dbName = "admin_db";

$uusername = $_POST["usernamepost"];
$ppassword = $_POST["passwordpost"];

$conn = new mysqli($servername,$server_username,$server_password,$dbName);

if(!$conn){
    $conn = new mysqli($servername,$server_username2,$server_password,$dbName);
}

if(!$conn){
die("Connection Failed".mysqli_connect_error());
}

$sql = "SELECT * FROM users WHERE username = '".$uusername."' ";

if($_POST){

$result = mysqli_query($conn,$sql);
if(mysqli_num_rows($result) > 0){
    while($row = mysqli_fetch_assoc($result)){
       if($row['pass'] == $ppassword){
           if($row['ban'] == 'free'){
              echo $row['ID'];

           }else {
           echo "problem_ban";
           }
     }else {
        echo "problem_password";
   }

}
}else{
    echo "problem_username";
}
}

mysqli_close($conn);


?>