How to make a check in Bitrix if a letter to the administrator add an attachment if the user does not?

Question

1C-Bitrix

It didn't work out
the main fitback component

$arFields = Array(
                "AUTHOR" => $_POST["user_name"],
                "AUTHOR_EMAIL" => $_POST["user_email"],
                "PHONE" => $_POST["user_phone"],
                "EMAIL_TO" => $arParams["EMAIL_TO"],
                "TEXT" => $_POST["MESSAGE"],
                "FILE_NAME" => $_FILES['file']['name']
            );

if($_POST["user_email"] !== $arParams["EMAIL_TO"]){
CEvent::Send($arParams["EVENT_NAME"], SITE_ID, $arFields,"","",$file_array);}
else{
CEvent::Send($arParams["EVENT_NAME"], SITE_ID, $arFields,"","");
}

Answer 1

Didn't work what? compare two email addresses or add attachments?