html2canvas 和 jsPDF：将生成的 pdf 作为电子邮件附件发送

Question

我创建了一个功能来截取当前网页的屏幕截图并使用 html2canvas 和 jsPDF 将其保存为 PDF。以下是我的代码：

<script>
 function downloadpdf(){
    html2canvas(document.body,
        {
            onrendered: function(canvas){
                var imgData = canvas.toDataURL("image/jpeg");
                var a = document.createElement('a');
                var doc = new jsPDF('p','mm');
                doc.addImage(imgData, 'JPEG', 15, 40, 180, 160);
                doc.save($.now()+'.pdf');

        }
    });
}
</script>

通过使用上面的代码，我可以下载文件并将其保存在本地。但我想使用 php 脚本直接通过电子邮件发送生成的 pdf。

以下是 post 在 php 脚本中发送图像的代码，它将作为电子邮件发送：

var imgData = canvas.toDataURL("image/jpeg");
                $.post("sendimage.php", 
                {
                    data: imgData
                }, function (response,status) {
                    console.log(response);
                });

但是如何post在data参数中生成pdf？

请为此推荐任何解决方案。

Answer 1

请检查PHP代码-

function MailWithAttachment($to, $subject, $message, $senderMail, $senderName, $files){

    $from = $senderName." <".$senderMail.">"; 
    $headers = "From: $from";

    // boundary 
    $semi_rand = md5(time()); 
    $mime_boundary = "==Multipart_Boundary_x{$semi_rand}x"; 

    // headers for attachment 
    $headers .= "\nMIME-Version: 1.0\n" . "Content-Type: multipart/mixed;\n" . " boundary=\"{$mime_boundary}\""; 

    // multipart boundary 
    $message = "--{$mime_boundary}\n" . "Content-Type: text/html; charset=\"UTF-8\"\n" .
    "Content-Transfer-Encoding: 7bit\n\n" . $message . "\n\n"; 

    // preparing attachments
    if(count($files) > 0){
        for($i=0;$i<count($files);$i++){
            if(is_file($files[$i])){
                $message .= "--{$mime_boundary}\n";
                $fp =    @fopen($files[$i],"rb");
                $data =  @fread($fp,filesize($files[$i]));
                @fclose($fp);
                $data = chunk_split(base64_encode($data));
                $message .= "Content-Type: application/octet-stream; name=\"".basename($files[$i])."\"\n" . 
                "Content-Description: ".basename($files[$i])."\n" .
                "Content-Disposition: attachment;\n" . " filename=\"".basename($files[$i])."\"; size=".filesize($files[$i]).";\n" . 
                "Content-Transfer-Encoding: base64\n\n" . $data . "\n\n";
            }
        }
    }
    $message .= "--{$mime_boundary}--";
    $returnpath = "-f" . $senderMail;

    //send email
    $mail = @mail($to, $subject, $message, $headers, $returnpath); 

    //function return true, if email sent, otherwise return fasle
    if($mail){ return TRUE; } else { return FALSE; }
}


if(!empty($_POST['data'])){

    //email variables
    $to = 'to-email@email.com';
    $from = 'from-email@email.com';
    $from_name = 'PDF FIle';

    //attachment files path array
    $file = base64_decode($_POST['data']);

    $subject = 'PHP Email with attachment'; 
    $html_content = '<h1>PHP Email with attachment</h1>';

    //call MailWithAttachment() function and pass the required arguments
    $send_email = MailWithAttachment($to,$subject,$html_content,$from,$from_name,$file);

    //print message after email sent
    echo $send_email?"<h1> Mail Sent</h1>":"<h1> Mail not SEND</h1>";

} else {
    echo "No Data Found";
}

希望对你有用:)

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