我正在使用以下代码发送带有附件的电子邮件，但正确的文件没有附加到邮件中。

$UnidID = $_COOKIE['UniqueID']; $guid = $_COOKIE['guid']; $target_path = "userdata/".$UniqueID."/".$iGuid."/Outputs"; $fname = getpathmail($UnidID,$guid); $target_path = $target_path.$filname; $fileatt_type = "application/fbf"; // File Type $fileatt_name = $fname; $data = $target_path; $email_from = "EHPAdmin@fugro.in"; $email_subject = "EHP/PPP process"; $email_message = "Processed result for EHP/PPP processing"; $email_to = $_GET['Email'] ; $headers = "From: ".$email_from; $semi_rand = md5(time()); $mime_boundary = "==Multipart_Boundary_x{$semi_rand}x"; $headers .= "nMIME-Version: 1.0n" . "Content-Type: multipart/mixed;n" . " boundary="{$mime_boundary}""; $email_message .= "This is a multi-part message in MIME format.nn" . "--{$mime_boundary}n" . "Content-Type:text/html; charset="iso-8859-1"n" . "Content-Transfer-Encoding: 7bitnn" . $email_message .= "nn"; $data = chunk_split(base64_encode($data)); $email_message .= "--{$mime_boundary}n" . "Content-Type: {$fileatt_type};n" . " name="{$fileatt_name}"n" . "Content-Transfer-Encoding: base64nn" . $data .= "nn" . "--{$mime_boundary}--n"; $ok = @mail($email_to, $email_subject, $email_message, $headers);