php发送带附件的邮件

Question

如何发送带有简历附件的邮件，

我从这个地方截取片段Click here

在此站点中，代码段工作正常，

即使我收到了邮件，但附件不起作用，我收到的是 0kb 的 noname

文件大小，该片段中的问题是什么，

Answer 1

 function mail_attachment($to, $subject, $message, $from, $file) {
  // $file should include path and filename
  $filename = basename($file);
  $file_size = filesize($file);
  $content = chunk_split(base64_encode(file_get_contents($file))); 
  $uid = md5(uniqid(time()));
  $from = str_replace(array("\r", "\n"), '', $from); // to prevent email injection
  $header = "From: ".$from."\r\n"
      ."MIME-Version: 1.0\r\n"
      ."Content-Type: multipart/mixed; boundary=\"".$uid."\"\r\n\r\n"
      ."This is a multi-part message in MIME format.\r\n" 
      ."--".$uid."\r\n"
      ."Content-type:text/plain; charset=iso-8859-1\r\n"
      ."Content-Transfer-Encoding: 7bit\r\n\r\n"
      .$message."\r\n\r\n"
      ."--".$uid."\r\n"
      ."Content-Type: application/octet-stream; name=\"".$filename."\"\r\n"
      ."Content-Transfer-Encoding: base64\r\n"
      ."Content-Disposition: attachment; filename=\"".$filename."\"\r\n\r\n"
      .$content."\r\n\r\n"
      ."--".$uid."--"; 
  return mail($to, $subject, "", $header);
 }