无法在 codeigniter 3 中使用 SMTP gmail 配置发送电子邮件

下面是我的代码，我参考了堆栈溢出和 codeigniter 用户指南中的所有示例。我仍然无法解决这个问题

public function send()
{
    $config['protocol'] = 'smtp';
    $config['smtp_crypto'] = 'ssl';
    $config['smtp_host'] = 'smtp.gmail.com';
    $config['smtp_port'] = '465';
    $config['smtp_user'] = '**********@gmail.com';
    $config['smtp_pass'] = '********';
    $config['mailtype'] = 'html';
    $config['charset'] = 'utf-8';
    $config['newline'] = "\r\n";
    $config['wordwrap'] = TRUE;
    $config['smtp_timeout'] = 30;
    $this->email->initialize($config);
    $this->email->from('[email protected]', 'admin');
    $this->email->to('[email protected], [email protected]');
    $this->email->subject('Registration Verification:');
    $message = "Thanks for signing up! Your account has been created...!";
    $this->email->message($message);
    if ( ! $this->email->send()) {
        show_error($this->email->print_debugger());
    } 

}

我该如何解决这个错误？请帮我一下

你试试这个吗？

$config = Array(
'protocol' => 'smtp',
'smtp_host' => 'ssl://smtp.googlemail.com',
'smtp_port' => 465,
'smtp_user' => 'xxx',
'smtp_pass' => 'xxx',
'mailtype'  => 'html', 
'charset'   => 'iso-8859-1'
);
$this->load->library('email', $config);
$this->email->set_newline("\r\n");

// Set to, from, message, etc.

$result = $this->email->send();

并确保您已设置您的电子邮件帐户允许安全性较低的应用程序访问您的帐户