出于某種奇怪的原因，我的 PHP 登錄系統(tǒng)會(huì)發(fā)送一封確認(rèn)電子郵件來激活您的帳戶，但它不會(huì)發(fā)送任何內(nèi)容。<?php$error = NULL;require "phpmailer/class.phpmailer.php";require "phpmailer/class.smtp.php";require "phpmailer/PHPMailerAutoload.php";if(isset($_POST['submit'])) {    //Form Data GET    $u = $_POST['u'];    $p = $_POST['p'];    $p2 = $_POST['p2'];    $e = $_POST['e'];    //Throw Username too short error    if(strlen($u) < 5){        $error = "(!) Your username must be at least 5 characters.";    }elseif($p2 != $p) {    //Throw password pair error.        $error .= "(!) Your passwords do not match :/";    }else{        //200 [OK]        //Establish Connection to Database        $mysqli = NEW MySQLi('localhost','root','','test');        //Convert special chars.        $u = $mysqli->real_escape_string($u);        $p = $mysqli->real_escape_string($p);        $p2 = $mysqli->real_escape_string($p2);        $e = $mysqli->real_escape_string($e);        //Generate Verification Key        $vkey = md5(time().$u);        //Insert account into database        $p = md5($p);        $insert = $mysqli->query("INSERT INTO accounts(username,password,email,vkey)            VALUES('$u','$p','$e','$vkey')");        if($insert){            //Start PHPMailer            $mail = new PHPMailer(true);            $mail->IsSMTP(); // telling the class to use SMTP            $mail->SMTPDebug = 0;   //No Debug. Set to 3 for verbose logging.            $mail->SMTPAuth = true; // enable SMTP authentication            $mail->SMTPSecure = "ssl"; //Set to SSL to pass checks.            $mail->Host = "smtp.mail.com"; //Set to mail.com server, it has ssl, smtp, and it's free. If you'd like to use gmail, use smtp.gmail.com            $mail->Port = 465;  //SSL/TLS Port for mail.com and gmail.com一開始，我需要我的 PHPMailer 文件夾中的文件，然后我啟動(dòng) PHPMailer這讓我很緊張。我知道問題所在。如果有人知道解決方案或知道為什么它不起作用的提示，那就太好了。謝謝。同一文件中的 HTML