php 服务器检控代码并实现给手机发送短信

一个白痴类型服务器检控代码，写的非常粗糙，放到这里备忘把。用服务器B检控服务器A，服务器B ping 服务器A，查看返回结果，如果有异常发送给139邮箱，在139邮箱上设置--手机通知--邮件到达通知-- 查短信，这样只要服务器有问题手机就能收到短信；弊端&不足：139邮箱收到邮件后向手机发送短信会有一定延时；必须保证服务器B稳定。有什么不足希望给予指点。

[PHP]代码

<?php
 /**
    * 服务器检控
    *   -- 如果ping不同或者丢包情况给139邮箱发送邮件，139邮箱设置手机接收邮件项。
    * @package: 
    * @Files: pingServer.php
    * @Author: 林涛
    * @Date: 2012-8-27 上午11:37:15
    * @Copyright: http://www.iamlintao.com
    * @todo:
    *
    * -----Remarks--------  
    *   
    * --------------------
    */ 

    // 这里是你要执行的代码

    exec("ping -c 4 这里写被监控服务器的IP",$rArr);       // 执行Ping
    $content = array_reverse($rArr);    // 翻转数组

    $msg_1 = $content[0];   // rtt min/avg/max/mdev = 3.743/3.905/4.314/0.248 ms
    $msg_2 = $content[1];   // 4 packets transmitted, 4 received, 0% packet loss, time 3003ms   
    $findme   = 'received, 0% packet loss'; // 查找字符串

    $pos = strpos($msg_2, $findme);

    if ($pos === false) {   // 不存在

        $smtpserver="smtp.163.com";
        $port =25;                  //smtp服务器的端口，一般是 25
        $smtpuser = ""; //您登录smtp服务器的用户名
        $smtppwd = "";      //您登录smtp服务器的密码
        $mailtype = "TXT";          //邮件的类型，可选值是 TXT 或 HTML ,TXT 表示是纯文本的邮件,HTML 表示是 html格式的邮件
        $sender = "";   //发件人,一般要与您登录smtp服务器的用户名($smtpuser)相同,否则可能会因为smtp服务器的设置导致发送失败
        $smtp = new smtp($smtpserver,$port,true,$smtpuser,$smtppwd,$sender);
        $smtp->debug = true;            //是否开启调试,只在测试程序时使用，正式使用时请将此行注释
        $to = "";   //收件人，建议填写139邮箱
        $dtime = date("Y-m-d H:i:s");

        $subject = "Abnormal：$dtime $msg_2 ";   // 标题
        $body = "Abnormal：
        $dtime
        $msg_1

        ";  // 正文

        $subject = iconv("UTF-8", "GB2312", $subject);  // 转码
        $body = iconv("UTF-8", "GB2312", $body);        // 转码

        $send=$smtp->sendmail($to,$sender,$subject,$body,$mailtype);    // 发送

        if($send==1){
            //              echo "邮件发送成功";
        }else{
            //              echo "邮件发送失败<br/>";             
            }

    }else{  // 存在

    }

 /////////////////

 /**
  * 发送邮件类
  * @author Administrator
  *
  */
 class smtp{

    var $smtp_port;
    var $time_out;
    var $host_name;
    var $log_file;
    var $relay_host;
    var $debug;
    var $auth;
    var $user;
    var $pass;
    var $sock;

    function smtp($relay_host = "", $smtp_port = 25,$auth = false,$user,$pass){

        $this->debug = true;
        $this->smtp_port = $smtp_port;
        $this->relay_host = $relay_host;
        $this->time_out = 30;
        $this->auth = $auth;
        $this->user = $user;
        $this->pass = $pass;
        $this->host_name = "localhost";
        $this->log_file ="";
        $this->sock = FALSE;
    }

     function sendmail($to, $from, $subject = "", $body = "", $mailtype, $cc = "", $bcc = "", $additional_headers = ""){

            $mail_from = $this->get_address($this->strip_comment($from));
            $body = ereg_replace("(^|(\r\n))(\\.)", "\\1.\\3", $body);
            $header .= "MIME-Version:1.0\r\n";
            if($mailtype=="HTML")
            {
                $header .= "Content-Type:text/html\r\n";
            }
         $header .= "To: ".$to."\r\n";
         if ($cc != "")
         {
            $header .= "Cc: ".$cc."\r\n";
         }
         $header .= "From: $from<".$from.">\r\n";
         $header .= "Subject: ".$subject."\r\n";
         $header .= $additional_headers;
         $header .= "Date: ".date("r")."\r\n";
         $header .= "X-Mailer:By Redhat (PHP/".phpversion().")\r\n";
         list($msec, $sec) = explode(" ", microtime());
         $header .= "Message-ID: <".date("YmdHis", $sec).".".($msec*1000000).".".$mail_from.">\r\n";
         $TO = explode(",", $this->strip_comment($to));

         if ($cc != "") {
            $TO = array_merge($TO, explode(",", $this->strip_comment($cc)));
         }
         if ($bcc != "") {
            $TO = array_merge($TO, explode(",", $this->strip_comment($bcc)));
         }

         $sent = TRUE;
         foreach ($TO as $rcpt_to) {
            $rcpt_to = $this->get_address($rcpt_to);
            if (!$this->smtp_sockopen($rcpt_to)) {
                $this->log_write("Error: Cannot send email to ".$rcpt_to."\n");
                $sent = FALSE;
                continue;
            }
            if ($this->smtp_send($this->host_name, $mail_from, $rcpt_to, $header, $body)) {
                $this->log_write("E-mail has been sent to <".$rcpt_to.">\n");
            } else {
                $this->log_write("Error: Cannot send email to <".$rcpt_to.">\n");
                $sent = FALSE;
            }
            //fclose($this->sock);
            $this->log_write("Disconnected from remote host\n");
         }
         //echo "<br>";
         //echo $header;
         return $sent;
     }

    /* Private Functions */

     function smtp_send($helo, $from, $to, $header, $body = ""){

            if (!$this->smtp_putcmd("HELO", $helo)) {
                return $this->smtp_error("sending HELO command");
            }
            #auth
            if($this->auth){
                if (!$this->smtp_putcmd("AUTH LOGIN", base64_encode($this->user))) {
                return $this->smtp_error("sending HELO command");
            }

            if (!$this->smtp_putcmd("", base64_encode($this->pass))) {
            return $this->smtp_error("sending HELO command");
        }
        }
        #
        if (!$this->smtp_putcmd("MAIL", "FROM:<".$from.">")) {
        return $this->smtp_error("sending MAIL FROM command");
        }

        if (!$this->smtp_putcmd("RCPT", "TO:<".$to.">")) {
        return $this->smtp_error("sending RCPT TO command");
        }

        if (!$this->smtp_putcmd("DATA")) {
        return $this->smtp_error("sending DATA command");
        }

        if (!$this->smtp_message($header, $body)) {
        return $this->smtp_error("sending message");
        }

        if (!$this->smtp_eom()) {
        return $this->smtp_error("sending <CR><LF>.<CR><LF> [EOM]");
        }

        if (!$this->smtp_putcmd("QUIT")) {
            return $this->smtp_error("sending QUIT command");
        }

        return TRUE;
     }

     function smtp_sockopen($address){

        if ($this->relay_host == "") {
            return $this->smtp_sockopen_mx($address);
        } else {
            return $this->smtp_sockopen_relay();
        }
     }

     function smtp_sockopen_relay(){

        $this->log_write("Trying to ".$this->relay_host.":".$this->smtp_port."\n");
        $this->sock = @fsockopen($this->relay_host, $this->smtp_port, $errno, $errstr, $this->time_out);
        if (!($this->sock && $this->smtp_ok())) {
            $this->log_write("Error: Cannot connenct to relay host ".$this->relay_host."\n");
            $this->log_write("Error: ".$errstr." (".$errno.")\n");
            return FALSE;
        }
        $this->log_write("Connected to relay host ".$this->relay_host."\n");
        return TRUE;;
     }

     function smtp_sockopen_mx($address){

        $domain = ereg_replace("^.+@([^@]+)$", "\\1", $address);
        if (!@getmxrr($domain, $MXHOSTS)) {
            $this->log_write("Error: Cannot resolve MX \"".$domain."\"\n");
            return FALSE;
        }
        foreach ($MXHOSTS as $host) {
            $this->log_write("Trying to ".$host.":".$this->smtp_port."\n");
            $this->sock = @fsockopen($host, $this->smtp_port, $errno, $errstr, $this->time_out);
            if (!($this->sock && $this->smtp_ok())) {
                $this->log_write("Warning: Cannot connect to mx host ".$host."\n");
                $this->log_write("Error: ".$errstr." (".$errno.")\n");
                continue;
            }
            $this->log_write("Connected to mx host ".$host."\n");
            return TRUE;
        }
        $this->log_write("Error: Cannot connect to any mx hosts (".implode(", ", $MXHOSTS).")\n");
        return FALSE;
     }

     function smtp_message($header, $body){

        fputs($this->sock, $header."\r\n".$body);
        $this->smtp_debug("> ".str_replace("\r\n", "\n"."> ", $header."\n> ".$body."\n> "));

        return TRUE;
     }

     function smtp_eom(){

        fputs($this->sock, "\r\n.\r\n");
        $this->smtp_debug(". [EOM]\n");

        return $this->smtp_ok();
     }

     function smtp_ok(){

        $response = str_replace("\r\n", "", fgets($this->sock, 512));
        $this->smtp_debug($response."\n");

        if (!ereg("^[23]", $response)) {
            fputs($this->sock, "QUIT\r\n");
            fgets($this->sock, 512);
            $this->log_write("Error: Remote host returned \"".$response."\"\n");
            return FALSE;
        }
        return TRUE;
     }

     function smtp_putcmd($cmd, $arg = ""){

        if ($arg != "") {
            if($cmd=="") $cmd = $arg;
            else $cmd = $cmd." ".$arg;
        }

        fputs($this->sock, $cmd."\r\n");
        $this->smtp_debug("> ".$cmd."\n");

        return $this->smtp_ok();
     }

     function smtp_error($string){

        $this->log_write("Error: Error occurred while ".$string.".\n");
        return FALSE;
     }

     function log_write($message){

        $this->smtp_debug($message);

        if ($this->log_file == "") {
            return TRUE;
        }

        $message = date("M d H:i:s ").get_current_user()."[".getmypid()."]: ".$message;
        if (!@file_exists($this->log_file) || !($fp = @fopen($this->log_file, "a"))) {
            $this->smtp_debug("Warning: Cannot open log file \"".$this->log_file."\"\n");
            return FALSE;
        }
        flock($fp, LOCK_EX);
        fputs($fp, $message);
        fclose($fp);

        return TRUE;
     }

     function strip_comment($address){

        $comment = "\\([^()]*\\)";
        while (ereg($comment, $address)) {
            $address = ereg_replace($comment, "", $address);
        }

        return $address;
     }

     function get_address($address){

        $address = ereg_replace("([ \t\r\n])+", "", $address);
        $address = ereg_replace("^.*<(.+)>.*$", "\\1", $address);

        return $address;
     }

     function smtp_debug($message){

        if ($this->debug) {
            //echo $message."<br>";
        }
     }

     function get_attach_type($image_tag) { //

        $filedata = array();

        $img_file_con=fopen($image_tag,"r");
        unset($image_data);
        while ($tem_buffer=AddSlashes(fread($img_file_con,filesize($image_tag))))
            $image_data.=$tem_buffer;
        fclose($img_file_con);

        $filedata['context'] = $image_data;
        $filedata['filename']= basename($image_tag);
        $extension=substr($image_tag,strrpos($image_tag,"."),strlen($image_tag)-strrpos($image_tag,"."));
        switch($extension){
            case ".gif":
                $filedata['type'] = "image/gif";
                break;
            case ".gz":
                $filedata['type'] = "application/x-gzip";
                break;
            case ".htm":
                $filedata['type'] = "text/html";
                break;
            case ".html":
                $filedata['type'] = "text/html";
                break;
            case ".jpg":
                $filedata['type'] = "image/jpeg";
                break;
            case ".tar":
                $filedata['type'] = "application/x-tar";
                break;
            case ".txt":
                $filedata['type'] = "text/plain";
                break;
            case ".zip":
                $filedata['type'] = "application/zip";
                break;
            default:
                $filedata['type'] = "application/octet-stream";
                break;
        }

        return $filedata;
     }
 }