php 为什么我们通过电子邮件发送的 pdf 没有打开 - php Why pdf which we send on email not open?

php Why pdf which we send on email not open?

            $NameFile = '15_10_2014_.pdf';
            $File = './TEMP/15_10_2014_.pdf';
            $to = 'test2@test.com';
            $From = "test@test.com";
        $EOL = "'r'n"; 
        $boundary     = "--".md5(uniqid(time()));
        $message = "
        <p>TEXT TEXT TEXT</p>
        ";
        $subject= '=?utf-8?B?' . base64_encode('Счет на оплату') . '?=';
        $headers    = "MIME-Version: 1.0;$EOL";   
        $headers   .= "Content-Type: multipart/mixed; boundary='"$boundary'"$EOL";  
        $headers   .= "From: $From'nReply-To: $From'n";  
        $multipart  = "--$boundary$EOL";   
        $multipart .= "Content-Type: text/html; charset=utf-8$EOL";   
        $multipart .= "Content-Transfer-Encoding: base64$EOL";   
        $multipart .= $EOL;
        $multipart .= chunk_split(base64_encode($message));   
        $multipart .=  "$EOL--$boundary$EOL";   
        $multipart .= "Content-Type: application/octet-stream; name='"$NameFile'"$EOL";   
        $multipart .= "Content-Transfer-Encoding: base64$EOL";   
        $multipart .= "Content-Disposition: attachment; filename='"$NameFile'"$EOL";   
        $multipart .= $EOL; 
        $multipart .= chunk_split(base64_encode($File));   
        $multipart .= "$EOL--$boundary--$EOL";   
        if(!mail($to, $subject, $multipart, $headers)){
            $content = $this->return_error_p('Mail not send');
        }
        else{
            $content = $this->return_true_p('Mail send');
        }

结果，我们收到一封带有 pdf 附件的电子邮件，但 pdf 文件无法打开。当我们打开文件时，我们收到一个错误：">文件格式不受支持，或者它是通过电子邮件发送的，但未正确解码。

请告诉我哪里有错误？

你需要获取内容文件：

$openfile = fopen($File, "rb");
$data = fread($openfile,  filesize( $filename ) );
fclose($openfile);
$File = $data;

享受！

    Try this

   <?php
    // random hash necessary to send mixed content
    $separator = md5(time());
    $eol = PHP_EOL;
    // attachment name
    $filename = "_Desiredfilename.pdf";
    // encode data (puts attachment in proper format)
    $pdfdoc = $pdf->Output("", "S");
    $attachment = chunk_split(base64_encode($pdfdoc));
    ///////////HEADERS INFORMATION////////////
    // main header (multipart mandatory) message
    $headers  = "From: Sender_Name<sender@domain.com>".$eol;
    $headers .= "Bcc: email@domain.com".$eol;
    $headers .= "MIME-Version: 1.0".$eol; 
    $headers .= "Content-Type: multipart/mixed; boundary='"".$separator."'"".$eol.$eol; 
    $headers .= "Content-Transfer-Encoding: 7bit".$eol;
    $headers .= "This is a MIME encoded message.".$eol.$eol;
    // message
    $headers .= "--".$separator.$eol;
    $headers .= "Content-Type: text/html; charset='"iso-8859-1'"".$eol;
    $headers .= "Content-Transfer-Encoding: 8bit".$eol.$eol;
    $headers .= $message.$eol.$eol;
    // attachment
    $headers .= "--".$separator.$eol;
    $headers .= "Content-Type: application/octet-stream; name='"".$filename."'"".$eol; 
    $headers .= "Content-Transfer-Encoding: base64".$eol;
    $headers .= "Content-Disposition: attachment".$eol.$eol;
    $headers .= $attachment.$eol.$eol;
    $headers .= "--".$separator."--";

    //Email message
    mail($emailto, $emailsubject, $emailbody, $headers);
    ?>