PHP处理postfix邮件内容的方法

<?php//从输入读取到所有的邮件内容$email = "";$fd = fopen("php://stdin", "r");while (!feof($fd)) { $email .= fread($fd, 1024);}fclose($fd);//记录所有的内容，测试file_put_contents("/tmp/mail/".time(), $email);//处理邮件$lines = explode("/n", $email);// empty vars$from = "";$date = "";$subject = "";$message = "";$splittingheaders = true;for ($i=0; $i<count($lines); $i++) { if ($splittingheaders) {  // look out for special headers  if (preg_match("/^Subject: (.*)/", $lines[$i], $matches)) {   $subject = $matches[1];  }  if (preg_match("/^From: (.*)/", $lines[$i], $matches)) {   if(strpos($lines[$i],"<")){    //the name exist too in from header    $data = explode('<',$lines[$i]);    $from = substr(trim($data[1]),0,-1);   }else{    //only the mail    $from = $matches[1];   }  }  if (preg_match("/^Date: (.*)/", $lines[$i], $matches)) {   $date = $matches[1];  } } else {  // not a header, but message  $message .= $lines[$i]."/n"; } if (trim($lines[$i])=="") {  // empty line, header section has ended  $splittingheaders = false; }}$when = date("Y-m-d G:i:s");$data = explode('@',$from);$username = $data[0];//记录到数据库$sql = "insert into mails ( `username`, `from`, `subject`, `date`, `message`) values ( '$username', '$from', '$subject', '$when', '$message')";//测试file_put_contents("/tmp/mail2.log", $sql);?>