PHPを使用して電子メール本文とPDF添付ファイルを送信するには？

Question

以下のスクリプトは、GmailとOutlookへの添付ファイルとしてpdfファイルを送信できますが、Yahooメールには表示されません。私のコードに何が問題なのですか？

第2に、メールを送信すると、pdf添付ファイル自体からメッセージ本文に沿って運ばれません。どのように私はPDF添付ファイルでメッセージの本文を追加することができます上の任意の提案は高く評価されます。

<?php 
include("inc/conn2.php"); 

$customer_ID=$_GET['id']; 
$invoice_ref_no=$_GET['ref']; 

$query_sql= "SELECT * FROM add_biller_setup"; 
$result = mysqli_query($conn,$query_sql); 
$row = $result->fetch_assoc(); 
$biller_email_address= $row['email_address']; 
$biller_email = str_replace(' ','',$biller_email_address); 


$customer_emails=$_POST['customer_emails']; 
//$cust_emails=explode(',', $customer_emails); 
foreach($customer_emails as $key => $email_value){ 

$to =$email_value; 
$subject = "Customer Invoice Details"; 

$pdfdoc = $mpdf->Output('', 'S'); 

$fileatttype = "application/pdf"; 
$fileattname = "Invoice.pdf"; 
$mainMessage = "Please find the attachment included the mail."; 


$headers .= 'From: ABS Motor LTD<billing@example.com>' . "\r\n"; 
$headers .= 'Cc: '.$biller_email.'' . "\r\n"; 

$semi_rand  = md5(time()); 
$mime_boundary .= "==Multipart_Boundary_x{$semi_rand}x"; 
$headers  .= "MIME-Version: 1.0\n" . 
    "Content-Type: multipart/mixed;\n" . 
    " boundary={$mime_boundary}"; 

    //$headers = "MIME-Version: 1.0\n" ; 
    //$headers .= "Content-Type: text/html; charset=\"iso-8859-1\"\n"; 
// $headers .= "X-Priority: 1 (Highest)\n"; 
    //$headers .= "X-MSMail-Priority: High\n"; 
    //$headers .= "Importance: High\n"; 

    $message = "This is a multi-part message in MIME format.\n\n" . 
    "-{$mime_boundary}\n" . 
    "Content-type:text/html;charset=UTF-8\n" . 
    "Content-Transfer-Encoding: 7bit\n\n" . 
    $mainMessage. "\n\n"; 

$data = chunk_split(base64_encode($pdfdoc)); 
$message = "--{$mime_boundary}\n" . 
    "Content-Type: {$fileatttype};\n" . 
    " name={$fileattname}\n" . 
    "Content-Disposition: attachment;\n" . 
    " filename={$fileattname}\n" . 
    "Content-Transfer-Encoding: base64\n\n" . 
$data . "\n\n" . 
"-{$mime_boundary}-\n"; 



// Send email 
if(mail($to,$subject,$message,$headers)){ 
    $customer_ID=$_GET['id']; 
    $invoice_ref_no=$_GET['ref']; 
    $successMsg = 'Invoice has sent successfully.'; 
    echo '<p style="color:green; font-weight:600; font-size:1.5em;">'.$successMsg.'</p>'; 
    echo '<p style="color:black; font-size:1.2em;">Shortly you will be re-directed back to the invoice page.</p>'; 
echo '<meta content="3;invoice_details?id='.$customer_ID.'&ref='.$invoice_ref_no.'" http-equiv="refresh" />'; 
} 
else{ 
    $customer_ID=$_GET['id']; 
    $invoice_ref_no=$_GET['ref']; 
    $errorMsg = 'Some problem occurred, please try again.'; 
    echo '<p style="color:red; font-weight:600; font-size:1.5em;">'.$errorMsg.'</p>'; 
    echo '<p style="color:black; font-size:1.2em;">Shortly you will be re-directed back to the invoice page.</p>'; 
    echo '<meta content="3;invoice_details?id='.$customer_ID.'&ref='.$invoice_ref_no.'" http-equiv="refresh" />'; 
} 
} 
?> 

Answer 1

希望の出力を得るには、phpmailerクラスライブラリをご利用ください。

https://github.com/PHPMailer/PHPMailer