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phpsmtp发送邮件的函数

时间:2021-07-01 10:21:17 帮助过:20人阅读

php实现的smtp发送邮件的函数,带smtp验证功能,有详细的注释,适合研究smtp发信的朋友参考。

完整代码如下。

".$lb,"250","MAIL FROM error: ");
      //6、发送Rcpt To。期待返回250
      $smtp[] = array("RCPT TO: <".$to.">".$lb,"250","RCPT TO error: ");
      //7、发送DATA,期待返回354
      $smtp[] = array("DATA".$lb,"354","DATA error: ");
      //8.0、发送From
      $smtp[] = array("From: ".$deliver.$lb,"","");
      //8.2、发送To
      $smtp[] = array("To: ".$to.$lb,"","");
      //8.1、发送标题
      $smtp[] = array("Subject: ".$subject.$lb,"","");
      //8.3、发送其他Header内容
      foreach($hdr as $h) {$smtp[] = array($h.$lb,"","");}
      //8.4、发送一个空行,结束Header发送
      $smtp[] = array($lb,"","");
      //8.5、发送信件主体
      if($bdy) {foreach($bdy as $b) {$smtp[] = array(base64_encode($b.$lb).$lb,"","");}}
      //9、发送“.”表示信件结束,期待返回250
      $smtp[] = array(".".$lb,"250","DATA(end)error: ");
      //10、发送Quit,退出,期待返回221
      $smtp[] = array("QUIT".$lb,"221","QUIT error: ");

        //打开smtp服务器端口
        $fp = @fsockopen($smtp_host, 25);
        if (!$fp) echo "Error: Cannot conect to ".$smtp_host."
"; while($result = @fgets($fp, 1024)){if(substr($result,3,1) == " ") { break; }} $result_str=""; //发送smtp数组中的命令/数据 foreach($smtp as $req){ //发送信息 @fputs($fp, $req[0]); //如果需要接收服务器返回信息,则 if($req[1]){ //接收信息 while($result = @fgets($fp, 1024)){ if(substr($result,3,1) == " ") { break; } }; if (!strstr($req[1],substr($result,0,3))){ $result_str.=$req[2].$result."
"; } } } //关闭连接 @fclose($fp); return $result_str; } //调用示例 #echo send_mail($_POST["email"],$tosubject,$_POST["errortext"]); echo send_mail('mail_001@126.com','脚本学堂,欢迎大家的光临','程序员之家_bbs.it-home.org'); echo time(); ?>

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