gMail と Hotmail で次のコードを使用すると、クレイジーなスパムの問題が発生します。PHP の観点から間違っていることはありますか?
function mail_attachment($filename, $path, $mailto, $from_mail, $from_name, $replyto, $subject, $message) {
$file = $path.$filename;
$file_size = filesize($file);
$handle = fopen($file, "r");
$content = fread($handle, $file_size);
fclose($handle);
$content = chunk_split(base64_encode($content));
$uid = md5(uniqid(time()));
$name = basename($file);
$header = "From: ".$from_name." <".$from_mail.">\r\n";
$header .= "Reply-To: ".$replyto."\r\n";
$header .= "MIME-Version: 1.0\r\n";
$header .= "Content-Type: multipart/mixed; boundary=\"".$uid."\"\r\n\r\n";
$header .= "This is a multi-part message in MIME format.\r\n";
$header .= "--".$uid."\r\n";
$header .= "Content-type:text/plain; charset=iso-8859-1\r\n";
$header .= "Content-Transfer-Encoding: 7bit\r\n\r\n";
$header .= $message."\r\n\r\n";
$header .= "--".$uid."\r\n";
$header .= "Content-Type: application/octet-stream; name=\"".$filename."\"\r\n"; // use different content types here
$header .= "Content-Transfer-Encoding: base64\r\n";
$header .= "Content-Disposition: attachment; filename=\"".$filename."\"\r\n\r\n";
$header .= $content."\r\n\r\n";
$header .= "--".$uid."--";
if (mail($mailto, $subject, "", $header)) {
echo "mail send ... OK"; // or use booleans here
} else {
echo "mail send ... ERROR!";
}
}
$my_file = "f92ffc796f.jpg";
$my_path = $_SERVER['DOCUMENT_ROOT']."/resources/template/uploads/";
$my_name = "BB Avatar";
$my_mail = "someone@somehwerecom";
$my_replyto = "someone@somehwerecom";
$my_subject = "This is a mail with attachment.";
$my_message = "Hallo,\r\ndo Your download is attached.\r\n\r\";
mail_attachment($my_file, $my_path, $_REQUEST['email'], $my_mail, $my_name, $my_replyto, $my_subject, $my_message);