Untitled

<?php
 session_start();


 if (isset($_POST['email'])) {
   //Walidacja
   $reg_form_correct=true;

   //Poprawnosc nick'a
   $nick=$_POST['nick'];
   //Dlugosc nickÄa
   if ((strlen($nick)<3) || (strlen($nick)>20)) {
     $reg_form_correct=false;
     $_SESSION['e_nick']="Nickname needs 3 to 20 charters!";
   }

  if (ctype_alnum($nick)==false) {
    $reg_form_correct=false;
    $_SESSION['e_nick']="Nickname can only be created with charters and numbers!";
  }

    //Sprawdz poprawnosc adresu email
    $email = $_POST['email'];
    $emailB = filter_var($email, FILTER_SANITIZE_EMAIL);

    if ((filter_var($emailB, FILTER_VALIDATE_EMAIL)==false) || ($emailB != $email)) {
      $reg_form_correct=false;
      $_SESSION['e_email']="Valid e-mail!";
    }

    //Sprawdz poprawnosc hasla
    $password_1 = $_POST['password_1'];
    $password_2 = $_POST['password_2'];
    if ((strlen($password_1)<8) || (strlen($password_1)>20)) {
      $reg_form_correct=false;
      $_SESSION['e_pass']="Password needs 3 to 20 charters!";
    }
    //sprawdzanie identycznosci hasel
    if ($password_1!=$password_2) {
      $reg_form_correct=false;
      $_SESSION['e_pass']="Passwords are not the same!";
    }

    $haslo_hash = password_hash($password_1, PASSWORD_DEFAULT);

    // akceptacja reg.
    if (!isset($_POST['regulamin'])) {
      $reg_form_correct=false;
      $_SESSION['e_terms']="You have to accept the terms!";
    }

    // Czy to bot?
    $sekret="6LfgYS8UAAAAAHK3BI52peprjIoP7U5qDvs_iIIN";

    $check_me = file_get_contents('https://www.google.com/recaptcha/api/siteverify?secret='.$sekret.'&response='.$_POST['g-recaptcha-response']);

    $answer_captcha= json_decode($check_me);

    if($answer_captcha->success==false){
      $reg_form_correct=false;
      $_SESSION['e_bot']="Cant escape from captcha, bch";
    }

    require_once"connect.php";

    mysqli_report(MYSQLI_REPORT_STRICT);

    try {
        $sql_connection = new mysqli($host, $db_user, $db_password, $db_name);

          if ($sql_connection -> connect_errno!=0) {
            throw new Exception(mysqli_connect_errno()); //Rzuc nowym wyjatek
          }else {
          //Czy @ juz istnieje?
            $my_result = $sql_connection->query("SELECT id FROM uzytkownicy WHERE email='$email'");

          if (!$my_result) throw new Exception($sql_connection->error);

            $emails_validation = $my_result->num_rows;
          if ($emails_validation>0) {
            $reg_form_correct=false;
            $_SESSION['e_email']="There is an acc with this email";
          }

          //Czy login juz istnieje?
          $my_result = $sql_connection->query("SELECT id FROM uzytkownicy WHERE user='$nick'");

          if (!$my_result) throw new Exception($sql_connection->error);

            $ile_takich_nickow = $my_result->num_rows;
          if ($ile_takich_nickow>0) {
            $reg_form_correct=false;
            $_SESSION['e_nick']="There is a player with this nick already";
          }

          if ($reg_form_correct==true) {
            //Wszystkie testy zaliczone
            if ($sql_connection->query("INSERT INTO uzytkownicy VALUES (NULL, '$nick', '$haslo_hash', '$email', '100', '100', '100', '14')")) {
              $_SESSION['reg_fulfilled']=true;
              header('Location: witamy.php');
            }else {
              throw new Exception($sql_connection->error);
            }
          }
          $sql_connection->close();
        }
    } catch (Exception $e) {  //Zlap wyjatki, jesli jakies zostaly rzucone
      echo '<span style="color:red;">Server error, see u later aligator</span>';
      echo "<br> Info dev:".$e;
    }
 }
?>


<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>Settlerslike - Create ur free acc!</title>
    <script src='https://www.google.com/recaptcha/api.js'></script>
    <style>
    .error{
      color: red;
      margin-top: 10px;
      margin-bottom: 10px;
    }
    </style>
  </head>
  <body style="background-color: rgb(173, 173, 173);">

    <form  method="post">
      Nickname: <br> <input type="text" name="nick"> <br>
      <?php
      if (isset($_SESSION['e_nick'])) {
        echo '<div class="error">'.$_SESSION['e_nick'].'</div>';
        unset($_SESSION['e_nick']);
      }
      ?>

      E-mail: <br> <input type="text" name="email"> <br>
      <?php
      if (isset($_SESSION['e_email'])) {
        echo '<div class="error">'.$_SESSION['e_email'].'</div>';
        unset($_SESSION['e_email']);
      }
      ?>

      Password: <br> <input type="password" name="password_1"> <br>
      <?php
      if (isset($_SESSION['e_pass'])) {
        echo '<div class="error">'.$_SESSION['e_pass'].'</div>';
        unset($_SESSION['e_pass']);
      }
      ?>
      Re-Password: <br> <input type="password" name="password_2"> <br>
      <label><input type="checkbox" name="regulamin" value=""> Me accept the term, yes</label><br>
      <?php
      if (isset($_SESSION['e_terms'])) {
        echo '<div class="error">'.$_SESSION['e_terms'].'</div>';
        unset($_SESSION['e_terms']);
      }
      ?>
      <div class="g-recaptcha" data-sitekey="6LfgYS8UAAAAANB8sauiB9FMdWWK5YARwN2dL5cB"></div> <br>
      <?php
      if (isset($_SESSION['e_bot'])) {
        echo '<div class="error">'.$_SESSION['e_bot'].'</div>';
        unset($_SESSION['e_bot']);
      }
      ?>
      <button type="submit" name="button">Reggister</button>
    </form>

  </body>
</html>