在 Windows 上使用 php 和 pear 发送邮件

I am trying to send an e-mail using php script but i am getting errors this is my code.i am using xampp netbeans and windows. and i included pear in the php.ini file but still having thies errors any ideas

 require_once "Mail.php";
                            
                            $from = "onlinebookstorb@gmail.com";
                            $to = "'$email'";
                            $subject = "Online book store information";
                            $body = "This is your Id '$userID' click <a href =../index.php > here </a> to change to go to the website "; //todo change URL to make it work when it is online

                            $host = "ssl://smtp.gmail.com";
                            $port = "993";
                            $host = "smtp.gmail.com";
                            $username = "onlinebookstoreb@gmail.com";
                            $password = "";

                            $headers = array('From' => $from,
                                'To' => $to,
                                'Subject' => $subject);
                            $smtp = Mail::factory('smtp', array('host' => $host,
                                        'port' => $port,
                                        'auth' => true,
                                        'username' => $username,
                                        'password' => $password));

                            $mail = $smtp->send($to, $headers, $body);
                            if (PEAR::isError($mail)) {
                                echo("<p>" . $mail->getMessage() . "</p>");
                            } else {
                                echo("<p>Message successfully sent!</p>");
                            }

这是我得到的错误:

严格标准:非静态方法 Mail::factory() 不应在第 85 行的 C:xampphtdocsOnlineBookStoreStoreRegister.php 中静态调用

@require_once "Mail.php";
...
$smtp = @Mail::factory('smtp', array('host' => $host,
                                        'port' => $port,
                                        'auth' => true,
                                        'username' => $username,
                                        'password' => $password));
$mail = @$smtp->send($to, $headers, $body);
if (@PEAR::isError($mail)) {