HTML Debugging

The PDF preview feature is great, but on more complex documents it can be very helpful to debug the HTML directly. RockPdf makes that very easy as well:

/** @var RockPdf $pdf */
$pdf = $modules->get('RockPdf');
$pdf
  ->load("/site/test.php")
  ->save(
    preview: true,
    saveHTML: true,
  );

As soon as you set the saveHTML flag RockPdf will show you where it created the HTML output:

RockPdf - HTML Debugging

Open that file in your editor of choice and you'll see the markup that controls the mPDF rendering:

<!-- loaded /var/www/html/site/test.php -->

<!-- StylesArray 'site-test' -->
<!-- These comments are only visible when $config->debug = true; -->
<!-- loading /site/modules/RockPdf/styles/reset.less (RockPdf.module.php:263) -->
<!-- loading /site/modules/RockPdf/styles/utils.less (RockPdf.module.php:264) -->
<link href='/site/assets/RockPdf/site-test.css?m=1698673408' rel='stylesheet'><!-- LESS compiled by RockFrontend -->

<!-- begin of document -->
<h1>Hello World</h1>

You can see from the markup that RockFrontend does some of the heavy lifting for us and that's the reason why it is required for RockPdf 💪

Pro-Tip: Some editors like VSCode will automatically reload the file as soon as it changes, so you might be able to open that file in a separate window and inspect the HTML while working on the document.

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