<?php if (isset($_POST['signupbtn'])) {
 require 'dbh.php';

$username=$_POST['uid'];
$email=$_POST['mail'];
$firstname=$_POST['fname'];
$lastname=$_POST['lname'];
$password=$_POST['pwd'];
$passwordRepeat=$_POST['pwd-repeat'];

  $sql= "INSERT INTO users (uidusers, emailusers, fname, lname, pwdusers) VALUES(?,?,?,?,?)";
    $stmt = mysqli_stmt_init($conn);
    if (!mysqli_stmt_prepare($stmt,$sql)){
      header("location:../signup.php?error=sqlerror");
      exit();
  }
  else{

    $hashedpwd= password_hash($password,PASSWORD_DEFAULT);
    mysqli_stmt_bind_param($stmt,"sssss",$username,$email,$firstname,$lastname);
    mysqli_stmt_execute($stmt);
    header("location:../signup.php?signup=success");
    exit();
  }
 mysqli_stmt_close($stmt);
 mysqli_close($conn);

}
?>