批量发送邮件php源码

以下是一个简单的PHP脚本，可以使用SMTP协议批量发送邮件：

<?php
// 邮件发送函数
function sendMail($to, $subject, $body) {
    $host = 'smtp.example.com'; // SMTP服务器地址
    $username = 'your_username'; // SMTP用户名
    $password = 'your_password'; // SMTP密码
    
    $headers = array(
        'From' => 'your_email@example.com',
        'To' => $to,
        'Subject' => $subject,
        'Content-Type' => 'text/html; charset=UTF-8'
    );
    
    $smtp = new SMTP($host, 25); // 创建SMTP对象
    $smtp->setAuth($username, $password); // 设置SMTP认证信息
    $smtp->setHeaders($headers); // 设置邮件头
    $smtp->setBody($body); // 设置邮件内容

    return $smtp->send(); // 发送邮件
}

// 要发送的邮件列表
$emails = array('email1@example.com', 'email2@example.com', 'email3@example.com');

// 发送邮件的循环
foreach ($emails as $email) {
    $result = sendMail($email, '邮件主题', '邮件内容');
    if ($result) {
        echo '邮件发送成功：' . $email . '<br>';
    } else {
        echo '邮件发送失败：' . $email . '<br>';
    }
}
?>

这个脚本使用了一个名为SMTP的自定义类，需要先定义这个类。以下是SMTP类的代码：

class SMTP {
    private $host; // SMTP服务器地址
    private $port; // SMTP服务器端口
    private $username; // SMTP用户名
    private $password; // SMTP密码
    private $headers; // 邮件头
    private $body; // 邮件内容
    
    public function __construct($host, $port) {
        $this->host = $host;
        $this->port = $port;
    }
    
    public function setAuth($username, $password) {
        $this->username = $username;
        $this->password = $password;
    }
    
    public function setHeaders($headers) {
        $this->headers = $headers;
    }
    
    public function setBody($body) {
        $this->body = $body;
    }
    
    public function send() {
        $socket = fsockopen($this->host, $this->port, $errno, $errstr);
        if (!$socket) {
            return false;
        }
        
        // 建立连接
        $response = fgets($socket);
        if (substr($response, 0, 3) != '220') {
            return false;
        }
        fputs($socket, "EHLO " . $this->host . "\r\n");
        while ($response = fgets($socket)) {
            if (substr($response, 3, 1) != '-') {
                break;
            }
        }
        if (substr($response, 0, 3) != '250') {
            return false;
        }
        
        // 身份认证
        fputs($socket, "AUTH LOGIN\r\n");
        $response = fgets($socket);
        if (substr($response, 0, 3) != '334') {
            return false;
        }
        fputs($socket, base64_encode($this->username) . "\r\n");
        $response = fgets($socket);
        if (substr($response, 0, 3) != '334') {
            return false;
        }
        fputs($socket, base64_encode($this->password) . "\r\n");
        $response = fgets($socket);
        if (substr($response, 0, 3) != '235') {
            return false;
        }
        
        // 设置邮件头和内容
        $headers = '';
        foreach ($this->headers as $key => $value) {
            $headers .= $key . ': ' . $value . "\r\n";
        }
        $headers .= "\r\n" . $this->body . "\r\n";
        
        // 发送邮件
        fputs($socket, "MAIL FROM: <" . $this->headers['From'] . ">\r\n");
        $response = fgets($socket);
        if (substr($response, 0, 3) != '250') {
            return false;
        }
        fputs($socket, "RCPT TO: <" . $this->headers['To'] . ">\r\n");
        $response = fgets($socket);
        if (substr($response, 0, 3) != '250') {
            return false;
        }
        fputs($socket, "DATA\r\n");
        $response = fgets($socket);
        if (substr($response, 0, 3) != '354') {
            return false;
        }
        fputs($socket, $headers . "\r\n.\r\n");
        $response = fgets($socket);
        if (substr($response, 0, 3) != '250') {
            return false;
        }
        
        // 关闭连接
        fputs($socket, "QUIT\r\n");
        fclose($socket);
        
        return true;
    }
}

请注意，这个脚本只是一个例子，需要根据实际情况进行修改和调整。特别是SMTP服务器的设置，需要根据实际情况进行调整。