PHP Üyelik Scripti

<?php  
  include('header.php'); 
  if(isset($_POST['register'])){ 
  foreach($_POST as $key => $value) { 
  	$sec[$key] = filter($value); 
  } 
   
  $verificare1 = mysql_query("SELECT * FROM `users` WHERE `login`='{$sec['user']}' OR `email`='{$sec['email']}'"); 
  $verificare = mysql_num_rows($verificare1); 
   
  if ($verificare > 0) { 
  $mesaj = "<div class=\"error\">ERROR: Username or email already registered!</div>"; 
  }else if (!isUserID($sec['user'])) { 
  $mesaj = "<div class=\"error\">ERROR: Username is incorrect!</div>"; 
  }else if(!isEmail($sec['email'])) { 
  $mesaj = "<div class=\"error\">ERROR: Enter a valid email address!</div>"; 
  }else if (!checkPwd($sec['password'],$sec['password2'])) { 
  $mesaj = "<div class=\"error\">ERROR: Passwords do not match!</div>"; 
  }else{ 
  if(isset($_COOKIE['PlusREF'])){ 
  $ref = $_COOKIE['PlusREF']; 
  $user1 = mysql_query("SELECT * FROM `users` WHERE `id`='{$ref}'"); 
  $user = mysql_fetch_object($user1); 
  mysql_query("INSERT INTO `referals`(user,referal,date) values('{$user->login}','{$sec['user']}',NOW())"); 
  } 
  $activare = rand(000000000, 999999909); 
  mail($sec['email'],"Activate your account"," 
  Hello, 
   
  Thank you for your signup on our site.  
   
  Click on this link to activate your account:  
  {$site->site_url}/activate.php?cod={$activare} 
  	 
  Best Regards!","From: Site Admin <{$site->site_email}>"); 
  $final = VisitorIP(); 
  $passa = $sec['password']; 
  $passc = MD5($passa); 
  mysql_query("INSERT INTO `users`(email,login,IP,pass,passdecoded,ref,signup,activate) values('{$sec['email']}','{$sec['user']}','$final','$passc','$passa','{$ref}',NOW(),'{$activare}')")or die(mysql_error()); 
  $mesaj = "<div class=\"success\">Registered! You need to confirm your email address now!</div>"; 
  }} 
  ?>	 
  <div class="block medium right"> 
  			<div class="top"> 
                    <h1>Ücretsiz Kayit Ol</h1> 
              </div> 
  			<div class="content"><div class="msg"><?echo $mesaj;?></div> 
  <form action="" method="post"> 
  					  <fieldset> 
  						 <p> 
  							 <label>Kullanici Adi</label><br/> 
  							 <input class="text big" type="text" value="" name="user"/> 
  						 </p> 
  						 <p> 
  							 <label>E-mail</label><br/> 
  							 <input class="text big" type="email" value="" name="email"/> 
  						 </p> 
  						 <p> 
  							 <label>Parola</label> <br/> 
  							 <input class="password" type="password" value="" name="password"/> 
  						 </p> 
  						 <p> 
  							 <label>Parola(Tekrar)</label> 
  					     <br/> 
  							 <input class="password" type="password" value="" name="password2"/> 
  						 </p> 
  						  <p> 
  						  	<input type="submit" class="button gray small" value="Kayıt Ol" name="register" /> 
  						  </p> 
  					  </fieldset> 
  					</form> 
   
              </div> 
  		</div> 
   
  <?include('footer.php');?>