PHP-将动态生成的（和回显的）HTML读入字符串？ [英] PHP - Read dynamically generated (and echoed) HTML into a string?

问题描述

我有一个文件，可以从数据库中提取一些信息并创建一些相对简单的动态HTML。

I have a file that pulls some information from the database and creates some relatively simple dynamic HTML.

然后DOMPDF可以使用该文件将其转换为PDF文件。 DOMDPF使用GET变量来实现基本实现。

The file can then be used by DOMPDF to turn it into a PDF document. DOMDPF uses GET variables to achieve the basic implementation.

ob_start();
include_once("report.php?id=1249642977");

require_once("dompdf/dompdf_config.inc.php");

$dompdf = new DOMPDF();
$dompdf->load_html(ob_get_contents());
$dompdf->render();
$dompdf->stream("sample.pdf", array('Attachment'=>'0'));

ob_end_clean();

我想我可能可以使用一些类似的方法来实现目标，但是并不奇怪

I thought I might be able to use something ilke that to achieve the aim but unsurprisingly it didn't work.

那么，如果您要直接将文件加载到DOMPDF类中使用的字符串中，那么如何读取输出到浏览器的HTML？

So how can I read the HTML that gets output to the browser if you were to load the file directly, into a string for use with the DOMPDF class?

推荐答案

两个问题。

首先，您不能将类似于使用include_once的PHP页面-查询字符串将被忽略。您必须以其他方式将id赋予report.php。

First, you can't call a PHP page like that using include_once - the query string will be ignored. You have to give the id to report.php some other way.

第二，您正确地缓冲了输出。但是，您要将当前的输出缓冲区传递给DOMPDF，告诉它生成PDF到输出缓冲区，并丢弃该输出缓冲区。您可能想要这样的东西：

Second, you're correctly buffering the output. However, you're passing the current output buffer to DOMPDF, telling it to generate a PDF to the output buffer, and the discarding the output buffer. You probably want something like:

$dompdf = new DOMPDF();
$dompdf->load_html(ob_get_clean());
$dompdf->render();
$dompdf->stream("sample.pdf", array('Attachment'=>'0'));

这将获得当前的输出缓冲区，将其丢弃并禁用输出缓冲。然后$ dompdf-> stream应该可以工作。

That'll get the current output buffer, discard it, and disable output buffering. The $dompdf->stream should then work.

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