次のコードを使用して確認メールを送信していますが、メールのurlパラメータが削除され、メールのURLのようなhttp://example.com/confirm.php?user_id=
パラメータ値(1)が削除されている理由がわかりません
$headers = "From: admin@example.com \n";
$headers .= "X-Mailer: PHP/SimpleModalContactForm";
$headers .= "MIME-Version: 1.0\n";
$headers .= "Content-type: text/html; charset=utf-8\n";
$headers .= "Content-Transfer-Encoding: quoted-printable\n";
$subject = "Confirm Your Registration Example.com";
$subject = mb_encode_mimeheader($subject, "UTF-8", "B", "\n");
$to="abc@demo.com";
$body="<table> <tr> <td> Hello </td> </tr>";
$body.="<tr> <td> Please confirm your registration by clicking following link <td> </tr>";
$body.="<tr> <td> http://example.com/confirm.php?user_id=1</td> </tr>";
$body.="</table>";
@mail($to, $subject, $body, $headers) or die("Unfortunately, a server issue prevented delivery of your message.");