register.php

<?php
// include common.inc.php
include 'core/common.inc.php';
// show header / add title
showHeader('Registration');
// protect page from users already logged in
protect();
// turn off error_reporting
// error_reporting(0);
?>

<center>
  <form method="POST" class="register_module">

    <h2 style="text-align:left;font-family:'Roboto',sans-serif;">Account Credentials<span style="font-size:12px;font-weight:400;"> (required)</span></h2>

    <div class="account_credentials">
      <input class="register_module protect_from_spaces" type="text" name="username" placeholder="choose a username*" maxlength="30" required><br />
      <input class="register_module protect_from_spaces" type="email" name="email" placeholder="email address*" required><br />

      <div class="row_inline">
        <input class="register_module input protect_from_spaces" type="password" name="password" placeholder="password*" maxlength="18" required>
        <input class="register_module input protect_from_spaces" type="password" name="cpassword" placeholder="confirm password*" maxlength="18" required><br />
      </div>
    </div>
      <br />

      <!-- here add user details section (name, avatar, birthday, etc...) -->
      <h2 style="text-align:left;font-family:'Roboto',sans-serif;">Account Details<span style="font-size:12px;font-weight:400;"> (optional)</span></h2>

      <br />
      <div class="account_details">
        <p style="text-align:left;font-family:'Roboto',sans-serif;font-weight:400;">Name:</p>
        <input class="register_module_short protect_from_spaces" style="margin-right:1%;" type="text" name="first_name" placeholder="first name" />
        <input class="register_module_short protect_from_spaces" type="text" name="last_name" placeholder="last name" />

        <p style="text-align:left;font-family:'Roboto',sans-serif;font-weight:400;">Birthday:</p>
        <input style="margin-top:-10px;" class="register_module protect_from_spaces" type="date" name="birthday" />

        <p style="text-align:left;font-family:'Roboto',sans-serif;font-weight:400;">Social Link(s):</p>
        <input class="register_module protect_from_spaces" style="margin-top:-10px;" type="url" name="steam_profile" placeholder="steam profile (http://www.steamcommunity.com/id/lowheartrate/)" />
        <input class="register_module protect_from_spaces" type="url" name="twitter_profile" placeholder="twitter profile (https://twitter.com/lowheartrate)" />
        <input class="register_module protect_from_spaces" type="url" name="facebook_profile" placeholder="facebook profile (https://www.facebook.com/officiallowheartrate)" />
        <input class="register_module protect_from_spaces" type="url" name="instagram_profile" placeholder="instagram profile (https://instagram.com/lowheartrate)" />

        <!-- image upload for avatar... -->
        <div class="image_uploader">
          <h2 style="text-align:left;font-family:'Roboto',sans-serif;">✌ Avatar Uploader</h2><br />

          <p style="margin-top:-20px;font-size:12px;text-align:left;">Select image to upload:</p>
          <div style="text-align:left;font-size:12px;margin-top:-5px;margin-bottom:25px;">
            <input type="file" name="avatar" />
          </div>
        </div>
      </div>

      <!-- check errors in registration -->
      <?php checkRegisterErrors(); ?>

      <br />
      <p class="pull-left" style="max-width:50%;">by signing up, you agree to our <a href="#">terms</a> and that you have read our <a href="#">privacy policy</a> and <a href="#">content policy</a>.</p>
      <div class="g-recaptcha pull-right" data-sitekey="6Levrg4TAAAAAN-pL6Xl2tndj3ZDn5nJ3PRUhMV-"></div><br />

      <br />

      <button type="submit" class="btn-register" style="margin-top:10px;">sign up</button>
  </form>
</center>

<?php
// checks registration errors...
function checkRegisterErrors() {
  if(isset($_POST['username'], $_POST['password'])){
      require 'findConflict.php';
      $username = $_POST['username'];
      $password = $_POST['password'];
      $cpassword = $_POST['cpassword'];
      $email = $_POST['email'];
      $avatar = $_POST['avatar'];
      $hash = password_hash($password, PASSWORD_DEFAULT);
      $query = dbConnect()->prepare("SELECT email, username FROM users WHERE username = :username OR email = :email");
      $query->bindParam(':username', $username);
      $query->bindParam(':email', $email);
      $query->execute();
      $conflictingItems = [];
      while ( $result = $query->fetch( PDO::FETCH_ASSOC ) ) {
          $conflictingItems[] = $result;
      }
      // for checking checkGoogleCaptcha() function!!
      require_once 'core/recaptchalib.php';
      if(isset($_POST['g-recaptcha-response']))
      $captcha = $_POST['g-recaptcha-response'];
      $response = json_decode(file_get_contents("https://www.google.com/recaptcha/api/siteverify?secret=6Levrg4TAAAAAFmjcgKW8kDakmXTiBhmiCnUMchD&response=".$captcha."&remoteip=".$_SERVER['REMOTE_ADDR']), true);

      if ( count ($conflictingItems) == 1 ) {
        switch ( getConflict($conflictingItems, $username, $email) ) {
            case 1:
            // username conflict
            echo "<p class='error'>username taken</p>";
            break;
            case 2:
            // Email conflict
            echo "<p class='error'>email already in use</p>";
            break;
            case 3:
            // email & username conflict
            echo '<p class="error">username & email in use</p>';
            break;
        }
      } elseif ( count($conflictingItems) == 2 ) {
        echo 'username & email already in use';

      // check if passwords match!
      } elseif ($password != $cpassword) {
        echo '<p class="error">passwords do not match</p>';

      // make sure password is between 8 - 16 characters
      } elseif (strlen($password) < 8 OR strlen($password) > 16) {
        echo '<p class="error">password must be between 8 & 16 characters</p>';

      // checks to make sure google recaptcha was posted!
      } elseif (!$captcha) {
        echo '<p class="error">please complete the captcha</p>';
      } elseif($response['success'] == false) {
        echo '<p class="error">you are a robot</p>';


      } else {
        $activation_id = uniqid(true);
        $query = dbConnect()->prepare("INSERT INTO users (username, password, email, activated, activation_id, avatar) VALUES (:username, :password, :email, :activated, :activation_id, :avatar)");
        $query->bindParam(':username', $username);
        $query->bindParam(':email', $email);
        $query->bindParam(':avatar', $avatar);
        $query->bindParam(':password', $hash);
        $query->bindValue(':activated', "0");
        $query->bindValue(':activation_id', $activation_id);
        $query->execute();

        // set variables for optional fields...
        $firstName = $_POST['first_name'];
        $lastName = $_POST['last_name'];
        $birthday = $_POST['birthday'];
        $steam = $_POST['steam_profile'];
        $twitter = $_POST['twitter_profile'];
        $facebook = $_POST['facebook_profile'];
        $instagram = $_POST['instagram_profile'];

        // update user_details database
        $query2 = dbConnect()->prepare("INSERT INTO user_details (first_name, last_name, birthday, steam_profile, twitter_profile, facebook_profile, instagram_profile) VALUES (:firstName, :lastName, :birthday, :steam, :twitter, :facebook, :instagram)");
        $query2->bindParam(':firstName', $firstName);
        $query2->bindParam(':lastName', $lastName);
        $query2->bindParam(':birthday', $birthday);
        $query2->bindParam(':steam', $steam_profile);
        $query2->bindParam(':twitter', $twitter_profile);
        $query2->bindParam(':facebook', $facebook_profile);
        $query2->bindParam(':instagram', $instagram_profile);
        $query2->execute();

        // send email verification
        require 'core/config.php';
        $subject = $url . 'Registration Confirmation';
        $link = 'http://' . $url. "/activate.php?activation_id=" . $activation_id;
        $message = 'Thanks for registering with us! Please verify your account at' . $link . ' so you can login.';
        $headers = 'From: ' .$contact_email;
        mail($email/* <-- Who its being sent to */, $subject, $message, $headers);
        echo '<p class="info">registration successful, please verify email before logging in.</p>';

        header('refresh:5;url=index.php');

        echo '<p class="info">if you are not redirected, try to <a href="index.php">refresh</a> your page.</p>';
      }
  }
}
?>