function test_input($data) {
    $data = trim($data);
    $data = stripslashes($data);
    $data = htmlspecialchars($data);
  return $data;
}
include('config.php');
$conn = mysqli_connect(DB_DSN,DB_USERNAME,DB_PASSWORD,'kqusers');
$name = test_input($_POST['name']);
$pName = test_input($_POST['pName']);
$month = $_POST['month'];
$day = $_POST['day'];
$year = $_POST['year'];
$date = $month." ".$day." ".$year;
$class = $_POST['level'];
$username = test_input($_POST['username']);
$password = test_input($_POST['pass']);
$enc_password = password_hash($password, PASSWORD_DEFAULT);
$insert = mysqli_query($conn,"INSERT INTO student_user (name, parent_name, dob, class, username, password) VALUES ('$name', '$pName', '$date', '$class', '$username', '$enc_password')");
if ($insert) {
    echo "inserted";
}
else{
    echo "error";
}
mysqli_close($conn);

function test_input($data) {
  $data = trim($data);
  $data = stripslashes($data);
  $data = htmlspecialchars($data);
  return $data;
 }
include('config.php');
$conn = mysqli_connect(DB_DSN,DB_USERNAME,DB_PASSWORD,'kqusers');
$username = test_input($_POST['username']);
$password = test_input($_POST['password']);
$user_qry = mysqli_query($conn,"SELECT username FROM student_user WHERE username= '".$username."'");
$user=mysqli_fetch_assoc($user_qry);
$num_users = mysqli_num_rows($user_qry);
if ($num_users == 0) {
    echo "user_error";
}
else{
    $pass_qry = mysqli_query($conn,"SELECT password FROM student_user WHERE username= '".$username."'");
    $pass = mysqli_fetch_assoc($pass_qry);
    $enc_password = $pass["password"];
    $verify = password_verify($password, $enc_password);
    if ($verify) {
        echo "login";
    }
    else{
        echo "error";
    }
}
mysqli_close($conn);

$pass = "jim";
$enc_pass = password_hash($pass,PASSWORD_DEFAULT);
$ver = password_verify($pass,$enc_pass);
if($ver){
    echo "yes";
}
else{
    echo "no";
}

$pass = "jim";
$enc_pass = password_hash($pass,PASSWORD_DEFAULT);
$ver = password_verify($pass,'$2y$10$puPHBPrgSM2gPoECXH43vev6c9PCSDoOpdGwEryL/WsZTqR8ofZ8a');
if($ver){
    echo "yes";
}
else{
    echo "no";
}