SEND EMAIL

public static function sendEmail($to, $subject, $message, $json){
        $mail = new PHPMailer;
        $mail->isSMTP();                                      // Set mailer to use SMTP
        $mail->Host = 'localhost';  // Specify main and backup SMTP servers
        //$mail->SMTPAuth = true;                               // Enable SMTP authentication
        //$mail->Username = 'user@example.com';                 // SMTP username
        //$mail->Password = 'secret';                           // SMTP password
        $mail->SMTPSecure = 'tls';                            // Enable TLS encryption, `ssl` also accepted
        //$mail->Port = 587;                                    // TCP port to connect to

        $mail->setFrom('email@example.com', 'Admin');
        $mail->addAddress($to);     // Add a recipient
        //$mail->addAddress('ellen@example.com');               // Name is optional
        $mail->addReplyTo('email@example.com', 'Information');
        //$mail->addCC('cc@example.com');
        //$mail->addBCC('bcc@example.com');

        //$mail->addAttachment('/var/tmp/file.tar.gz');         // Add attachments
        //$mail->addAttachment('/tmp/image.jpg', 'new.jpg');    // Optional name
        $mail->isHTML(true);                                  // Set email format to HTML

        $mail->Subject = $subject;
        $mail->Body    = $message;
        //$mail->AltBody = 'This is the body in plain text for non-HTML mail clients';

        if(!$mail->send()) {
            $json->statusCode = UNABLE_SENT_EMAIL;
            $json->error= UNABLE_SENT_EMAIL_MESSAGE;
        }
    }