我尝试在我的快速时间，我有同样的问题，但经过适当的研究，我解决了它。以下是我的方法。您必须下载PHPMailer源文件，并在项目中手动包含所需的文件。

您可以从PHPMailer主页1下载带有源代码的ZIP文件，点击“克隆或下载”绿色按钮(在右侧)，然后选择“下载ZIP”。在要保存源文件的目录中解压缩包。

1来自:GitHub。 第二步:打开“(来自Gmail地址)谷歌帐户”，执行以下步骤:

禁用谷歌帐号的双因素密码验证。

Turn on Less Security. Allow third party app. There you Go.. <?php use PHPMailer\PHPMailer\PHPMailer; use PHPMailer\PHPMailer\Exception; require 'PHPMailer/src/Exception.php'; require 'PHPMailer/src/PHPMailer.php'; require 'PHPMailer/src/SMTP.php'; session_start(); if (isset($_POST['send'])) { $email = $_POST['email']; $subject = $_POST['subject']; $message = "I am trying"; //Load composer's autoloader $mail = new PHPMailer(true); try { //Server settings $mail->isSMTP(); $mail->Host = 'smtp.gmail.com'; $mail->SMTPAuth = true; $mail->Username = 'youremail@gmail.com'; $mail->Password = 'password'; $mail->SMTPOptions = array( 'ssl' => array( 'verify_peer' => false, 'verify_peer_name' => false, 'allow_self_signed' => true ) ); $mail->SMTPSecure = 'ssl'; $mail->Port = 465; //Send Email $mail->setFrom('youremail@gmail.com'); //Recipients $mail->addAddress($email); $mail->addReplyTo('youremail@gmail.com'); //Content $mail->isHTML(true); $mail->Subject = $subject; $mail->Body = $message; $mail->send(); $_SESSION['result'] = 'Message has been sent'; $_SESSION['status'] = 'ok'; } catch (Exception $e) { $_SESSION['result'] = 'Message could not be sent. Mailer Error: ' . $mail->ErrorInfo; $_SESSION['status'] = 'error'; echo 'Message could not be sent. Mailer Error: ' . $mail->ErrorInfo; } } header("location: forgotPassword.php");

我尝试在我的快速时间，我有同样的问题，但经过适当的研究，我解决了它。以下是我的方法。您必须下载PHPMailer源文件，并在项目中手动包含所需的文件。

您可以从PHPMailer主页1下载带有源代码的ZIP文件，点击“克隆或下载”绿色按钮(在右侧)，然后选择“下载ZIP”。在要保存源文件的目录中解压缩包。

1来自:GitHub。 第二步:打开“(来自Gmail地址)谷歌帐户”，执行以下步骤:

禁用谷歌帐号的双因素密码验证。

Turn on Less Security. Allow third party app. There you Go.. <?php use PHPMailer\PHPMailer\PHPMailer; use PHPMailer\PHPMailer\Exception; require 'PHPMailer/src/Exception.php'; require 'PHPMailer/src/PHPMailer.php'; require 'PHPMailer/src/SMTP.php'; session_start(); if (isset($_POST['send'])) { $email = $_POST['email']; $subject = $_POST['subject']; $message = "I am trying"; //Load composer's autoloader $mail = new PHPMailer(true); try { //Server settings $mail->isSMTP(); $mail->Host = 'smtp.gmail.com'; $mail->SMTPAuth = true; $mail->Username = 'youremail@gmail.com'; $mail->Password = 'password'; $mail->SMTPOptions = array( 'ssl' => array( 'verify_peer' => false, 'verify_peer_name' => false, 'allow_self_signed' => true ) ); $mail->SMTPSecure = 'ssl'; $mail->Port = 465; //Send Email $mail->setFrom('youremail@gmail.com'); //Recipients $mail->addAddress($email); $mail->addReplyTo('youremail@gmail.com'); //Content $mail->isHTML(true); $mail->Subject = $subject; $mail->Body = $message; $mail->send(); $_SESSION['result'] = 'Message has been sent'; $_SESSION['status'] = 'ok'; } catch (Exception $e) { $_SESSION['result'] = 'Message could not be sent. Mailer Error: ' . $mail->ErrorInfo; $_SESSION['status'] = 'error'; echo 'Message could not be sent. Mailer Error: ' . $mail->ErrorInfo; } } header("location: forgotPassword.php");

对于大多数项目，我现在使用Swift mailer。这是一种非常灵活和优雅的面向对象的发送电子邮件的方法，它是由给我们提供流行的Symfony框架和Twig模板引擎的同一个人创建的。

基本用法:

require 'mail/swift_required.php';

$message = Swift_Message::newInstance()
    // The subject of your email
    ->setSubject('Jane Doe sends you a message')
    // The from address(es)
    ->setFrom(array('jane.doe@gmail.com' => 'Jane Doe'))
    // The to address(es)
    ->setTo(array('frank.stevens@gmail.com' => 'Frank Stevens'))
    // Here, you put the content of your email
    ->setBody('<h3>New message</h3><p>Here goes the rest of my message</p>', 'text/html');

if (Swift_Mailer::newInstance(Swift_MailTransport::newInstance())->send($message)) {
    echo json_encode([
        "status" => "OK",
        "message" => 'Your message has been sent!'
    ], JSON_PRETTY_PRINT);
} else {
    echo json_encode([
        "status" => "error",
        "message" => 'Oops! Something went wrong!'
    ], JSON_PRETTY_PRINT);
}

有关如何使用Swift mailer的更多信息，请参阅官方文档。

这可以使用PHP的mail()函数实现。记住，邮件功能将不能在本地服务器上工作。

<?php
    $to      = 'nobody@example.com';
    $subject = 'the subject';
    $message = 'hello';
    $headers = 'From: webmaster@example.com'       . "\r\n" .
                 'Reply-To: webmaster@example.com' . "\r\n" .
                 'X-Mailer: PHP/' . phpversion();

    mail($to, $subject, $message, $headers);
?>

参考:

邮件

原生PHP函数mail()不适合我。它发出消息:

此邮件服务器在试图发送时需要身份验证 到非本地电子邮件地址

所以，我通常使用PHPMailer包

我已经从GitHub下载了5.2.23版本。

我只选择了2个文件，并将它们放在我的源代码PHP根目录中

class.phpmailer.php class.smtp.php

在PHP中，需要添加该文件

require_once('class.smtp.php');
require_once('class.phpmailer.php');

在此之后，它只是代码:

require_once('class.smtp.php');
require_once('class.phpmailer.php');
... 
//----------------------------------------------
// Send an e-mail. Returns true if successful 
//
//   $to - destination
//   $nameto - destination name
//   $subject - e-mail subject
//   $message - HTML e-mail body
//   altmess - text alternative for HTML.
//----------------------------------------------
function sendmail($to,$nameto,$subject,$message,$altmess)  {

  $from  = "yourcontact@yourdomain.com";
  $namefrom = "yourname";
  $mail = new PHPMailer();  
  $mail->CharSet = 'UTF-8';
  $mail->isSMTP();   // by SMTP
  $mail->SMTPAuth   = true;   // user and password
  $mail->Host       = "localhost";
  $mail->Port       = 25;
  $mail->Username   = $from;  
  $mail->Password   = "yourpassword";
  $mail->SMTPSecure = "";    // options: 'ssl', 'tls' , ''  
  $mail->setFrom($from,$namefrom);   // From (origin)
  $mail->addCC($from,$namefrom);      // There is also addBCC
  $mail->Subject  = $subject;
  $mail->AltBody  = $altmess;
  $mail->Body = $message;
  $mail->isHTML();   // Set HTML type
//$mail->addAttachment("attachment");  
  $mail->addAddress($to, $nameto);
  return $mail->send();
}

这招很管用

   $emailTextHtml='<h1>email sent from php use by phpmailer</h1>';

require 'PHPMailer/PHPMailerAutoload.php';
$mail = new PHPMailer(true);                          // Passing `true` enables exceptions
try {
    //Server settings
    //$mail->SMTPDebug = 2;                                 // Enable verbose debug output
    $mail->isSMTP();                                      // Set mailer to use SMTP
    $mail->Host = 'smtp.gmail.com';  // Specify main and backup SMTP servers
    $mail->SMTPAuth = true;                               // Enable SMTP authentication
    $mail->Username = 'demo@gmail.com';                 // SMTP username of gmail
    $mail->Password = '2345678';                           // SMTP password of gmail
    $mail->SMTPSecure = 'tls';                            // Enable TLS encryption, `ssl` also accepted
    $mail->Port = 587;                                    // TCP port to connect to

    //Recipients
    $mail->setFrom('anupam@gmail.com', 'study'); // provide your gmail username 
    $mail->addAddress('komal@gmail.com', 'study');     // Add a recipient
    $mail->addReplyTo('anupamverma@gmail.com', 'Information');

    //Content
    $mail->isHTML(true);                          // Set email format to HTML
     $mail->Subject = 'Register client details and total client details';
     $mail->Body= "$emailTextHtml";    //write the html code
    $mail->AltBody = 'This is the body in plain text for non-HTML mail clients';

    $mail->send();
    echo 'Message has been sent';
} catch (Exception $e) {
    echo 'Message could not be sent. Mailer Error: ', $mail->ErrorInfo;
}