Bukkit

<?php
signup.php
include 'connect.php';
include 'header.php';
echo '<h3>REGISTRO</h3>'.$_SERVER['REMOTE_ADDR'];
if($_SERVER['REQUEST_METHOD'] != 'POST')
{
echo '<form method="post" action="">
Usuario: <input type="text" name="user_name" /><br>
Clave: <input type="password" name="user_pass"><br>
Clave: <input type="password" name="user_pass_check"><br>
E-mail: <input type="email" name="user_email"><br>
<input type="submit" value="REGISTRAR" />
</form>';
}
else
{
/* so, the form has been posted, we'll process the data in three steps:
1. Check the data
2. Let the user refill the wrong fields (if necessary)
3. Save the data

• /
  $errors = array(); /* declare the array for later use */
  if(isset($_POST['user_name']))
  {
  the user name exists
  if(!ctype_alnum($_POST['user_name']))
  {
  $errors[] = 'The username can only contain letters and digits.';
  }
  if(strlen($_POST['user_name']) > 30)
  {
  $errors[] = 'The username cannot be longer than 30 characters.';
  }
  }
  else
  {
  $errors[] = 'The username field must not be empty.';
  }
  if(isset($_POST['user_pass']))
  {
  if($_POST['user_pass'] != $_POST['user_pass_check'])
  {
  $errors[] = 'The two passwords did not match.';
  }
  }
  else
  {
  $errors[] = 'The password field cannot be empty.';
  }
  if(!empty($errors)) /*check for an empty array, if there are errors, they're in this array (note the ! operator)*/
  {
  echo 'Uh-oh.. a couple of fields are not filled in correctly..';
  echo '<ul>';
  foreach($errors as $key => $value) /* walk through the array so all the errors get displayed */
  {
  echo '<li>' . $value . '</li>'; /* this generates a nice error list */
  }
  echo '</ul>';
  }
  else
  {
  $sql = "INSERT INTO
  users(player, password, motd, email , ip, online)
  VALUES('" . mysql_real_escape_string($_POST['user_name']) . "',
  '" . mysql_real_escape_string($_POST['user_pass']) . "',
  '&aWelcome Back PLAYER \n&bWe Missed You!',
  '" . mysql_real_escape_string($_POST['user_email']) . "',
  '" . mysql_real_escape_string($_SERVER['REMOTE_ADDR']) . "',
  0)";
  $result = mysql_query($sql);
  if(!$result)
  {
  echo 'Something went wrong while registering. Please try again later.';
  }
  else
  {
  echo 'Successfully registered. You can now <a href="signin.php">sign in</a> and start posting! :-)';
  }
  }
  }
  include 'footer.php';
  ?>