PHP注册和登录表单&；电子邮件验证/邮件服务器设置

我正在开发一个小型网站，该网站要求用户注册一个帐户，之后会向他们发送一封电子邮件，其中包含验证帐户的详细信息。点击验证电子邮件中的链接后，帐户应处于活动状态，用户应能够登录。我提供了registration.PHP(注册(、login.PHP(登录(和verify.PHP(验证帐户激活(中的3个PHP片段！！我正在使用WAMP服务器创建数据库，并根据表

注意：这是我在注册页面上收到的唯一错误。

警告：mail((：无法连接到位于"的邮件服务器；localhost"；端口25，验证您的"；SMTP"；以及"；smtp_port"；在php.ini中设置或在C:''wamp''www''ONLINE BANKING''registration.php的541 行使用ini_set((

目前我有一些问题：1.我正在使用hmailserver，但我不确定如何设置它2.我需要监控用户何时被添加到数据库中(我认为这只是在点击电子邮件验证链接之后(

请告诉我我做错了什么，以及如何修复

**REGISTRATION.PHP**
     <div id="wrap">
                <!-- start PHP code -->
                <?php
                    mysql_connect("localhost", "root", "") or die(mysql_error()); // Connect to database server(localhost) with root .
                    mysql_select_db("registrations") or die(mysql_error()); // Select registration database.
                    $email="";
                    if( isset($_POST['fullname']) // Is the name field being posted; it does not matter whether it's empty or filled.  
            && // This is the same as the AND in our statement; it allows you to check multiple statements.  
            !empty($_POST['fullname']) // Verify if the field name is not empty 
            AND isset($_POST['email']) // Is the email field being posted; it does not matter if it's empty or filled.  
            && // This is the same as the AND in our statement; it allows you to check multiple statements.  
            !empty($_POST['email']) ) // Verify if the field email is not empty   
              {
                        $fullname = mysql_real_escape_string($_POST['fullname']);
                        $email = mysql_real_escape_string($_POST['email']);
                        }
                        if(!preg_match("/^[_a-z0-9-]+('.[_a-z0-9-]+)*@[a-z0-9-]+('.[a-z0-9-]+)*('.[a-z]{2,3})$/", $email)){
                            // Return Error - Invalid Email
                            $msg = 'The email you have entered is invalid, please try again.';
                        }else{
                            // Return Success - Valid Email
                            $msg = 'Your account has been created, <br /> please verify it by clicking the activation link that has been send to your email.';
                            }
                            $hash = md5( rand(0,1000) ); // Generate random 32 character hash and assign it to a local variable.
                            $PIN = rand(1000,5000); // Generate random number between 1000 and 5000 and assign it to a local variable.
        $to      = $email; // Send email to our user  
        $subject = 'Signup | Verification'; // Give the email a subject  
        $from="info@bfs.com";
        $message = 'Thanks for signing up! 
        Your account has been created, you can login with the following credentials after you have activated your account by clicking the url below. 
        ------------------------ 
        echo $_POST["UserID"];
        PIN: '.$PIN.' 
        ------------------------ 
        Please click this link to activate your account: 
        http://www.yourwebsite.com/verify.php?email='.$email.'&hash='.$hash.' 
        '; // Our message above including the link  
        $headers = 'From:noreply@yourwebsite.com' . "'r'n"; // Set from headers  
        mail($to, $subject, $message, $headers); // Send our email  //Line 541
                ?>
                <!-- stop PHP Code -->   

            </div>
**LOGIN.PHP**
<div id="wrap">
        <!-- start PHP code -->
        <?php
            mysql_connect("localhost", "root", "") or die(mysql_error()); // Connect to database server(localhost) with UserID and PIN.
            mysql_select_db("registrations") or die(mysql_error()); // Select registration database.
            if(isset($_POST['name']) && !empty($_POST['name']) AND isset($_POST['PIN']) && !empty($_POST['PIN'])){
                $UserID = mysql_escape_string($_POST['name']);
                $PIN = mysql_escape_string(md5($_POST['PIN']));
                $search = mysql_query("SELECT UserID, PIN, active FROM users WHERE UserID='".$UserID."' AND PIN='".$PIN."' AND active='1'") or die(mysql_error()); 
                $match  = mysql_num_rows($search);
                if($match > 0){
                    $msg = 'Login Complete! Thanks';
                }else{
                    $msg = 'Login Failed!<br /> Please make sure that you enter the correct details and that you have activated your account.';
                }
            }

        ?>
        <!-- stop PHP Code -->
        <?php 
            if(isset($msg)){ // Check if $msg is not empty
                echo '<div class="statusmsg">'.$msg.'</div>'; // Display our message and add a div around it with the class statusmsg
            } ?>
    </div>
**VERIFY.PHP**