使用PHP DOMPDF和AJAX下载PDF文件 [英] Using PHP DOMPDF and AJAX to download a PDF File

问题描述

我有一个名为print.php的PHP文件:

I have this PHP File called print.php:

<?php
require_once("modules/pdf/dompdf_config.inc.php");
$html = $_POST["toRender"];
$number = $_POST["number"];
$dompdf = new DOMPDF();
$dompdf->load_html($html);
$dompdf->render();
$dompdf->stream($number.".pdf");

如您所见，HTML和数字是通过POST接收的.

As you can see, the HTML and a Number are received via POST.

JavaScript文件如下:

The JavaScript file looks like this:

 $("#btnViewPDF").click(function() {

        var theHtml = $("#printable").html();
        var theNumber = $("#invoiceNumber").val();

        $.ajax({
            type : "post",
            url  : "views/print.php",
            data : {toRender : theHtml, number : theNumber},
            beforeSend: function() {
                $(".ajax-loader-bg").fadeIn();
            }
        }).always(function() {
            $(".ajax-loader-bg").fadeOut();
        });
        return false;
    });

基本上，它将DIV内的所有内容都称为可打印"，但接下来我要显示的是print.php中生成的PDF，但我无法弄清楚如何制作此PDF.

Basically it takes all the content inside a DIV called 'printable' but what I want next is the PDF that has been generated in print.php to be displayed, I haven't been able to figure out how can I make this.

当我在print.php内生成测试HTML时，我使它起作用，然后我输入URL mysite.com/print.php ...它呈现PDF，并允许我下载或在另一个PDF中查看浏览器标签.

I've made it work when I generate test HTML inside print.php and then I type in the url mysite.com/print.php ... it renders the PDF and allows me to download it or see it in another browser tab.

如何通过AJAX实现此目标?

How can I achieve this via AJAX?

推荐答案

您无法通过AJAX下载某些内容，可以使用隐藏的iframe来模拟行为.

You can't download something via AJAX, you could simulate the behavior using an hidden iframe.

并不是说您不能下载它，但是它永远不会最终保存在文件系统中，因为JavaScript出于安全原因不能这样做.

Not that you can't download it, but, it will never end up in the filesystem for saving purpose because javascript can't do that for security reasons.

无论如何，人们总是会找到解决方案，您可以尝试以下方法: https://stackoverflow.com/a/23797348/1131176

Anyway people always find solutions, you can try this: https://stackoverflow.com/a/23797348/1131176

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