PHP mailto() header 값 정의

$xMailer="PHP/".phpversion();
$headers="MIME-Version: 1.0\r\n";
$headers.="Content-Type:text/html;charset=EUC-KR \n";
$headers.="Content-type: text/html; charset=iso-8859-1\r\n";
$headers.="Content-type: text/html; charset=ks_c_5601-1987\r\n";
$headers.="From: $from_name <".$from_mail.">\r\n";
$headers.="Reply-To: <".$from_mail."> \r\n";
$headers.="X-Mailer : $xMailer \n";