<?php
require_once "models/class.user.php";

$register = new user_function();

  if (isset($_POST['register'])) {

    $username = trim(filter_input(INPUT_POST,"uname",FILTER_SANITIZE_STRING));
    $userpass = trim(filter_input(INPUT_POST,"password",FILTER_SANITIZE_STRING));


    if (!filter_var($_POST['useremail'],FILTER_VALIDATE_EMAIL)) {
      $error[] = "please enter valid email";
    }
    elseif (strlen($userpass) < 6) {
      $error[] = "password must be atleast 6 character";
    }
    else {
      try {
        $stmt = $register->prepare("SELECT * FROM users WHERE username:uname,useremail=:useremail");
        $query_params = array(
            ":username" => $username,
            ":useremail" => $useremail
        );
        $stmt->execute($query_params);
        $row = $stmt->fetch();
              if ($row['username'] == $username) {
                  $error[] = "username already taken";
              }elseif ($row['useremail'] == $useremail) {
                $error[] = "email already use";
              }else{
                if ($user_register->register($username,$useremail,$userpass)) {
                  header("Location: login.php");
                }
              }

      } catch (PDOException $e) {
        echo $e->getMessage();
      }

    }


  }



 ?>