julian-stark/dompdf_in_wp.php

## dompdf_in_wp.php
<?php
use Dompdf\Dompdf;
use Dompdf\Options;

add_action('wp', 'sd_generate_pdf');
function sd_generate_pdf() {

  	// Only on post with id 750
	if( get_the_ID() != 750 ) {
		return;
	}

	// Include Dompdf
	$dompdf_path = ABSPATH . 'wp-content/plugins/pdftest/includes/includes/dompdf/autoload.inc.php';
	//echo $dompdf_path;
	require_once $dompdf_path;

	// instantiate and use the dompdf class
	$options = new Options();
	// external images
	$options->set('isRemoteEnabled', true);
	$dompdf = new Dompdf($options);

	// get post_id via GET
	$post_id = $_GET['id'];

	ob_start();
    ?>

<!DOCTYPE html>
<html>
<head>
<title>Page Title</title>
<style>

	@page {
        size: a4 portrait;
        margin: 0;
		padding: 0;
		border: none;
    }
    body {
		font-family: Arial,Verdana,sans-serif;
		font-size: 33px;
		text-align: center;
		border: none;
    }

</style>
</head>
<body>

	<!-- content here -->


</body>
</html>

<?php

	$dompdf->loadHtml( ob_get_clean() );

	// (Optional) Setup the paper size and orientation
	$dompdf->setPaper('A4', 'portrait');

	// Render the HTML as PDF
	$dompdf->render();

	// Output the generated PDF to Browser
	$dompdf->stream();

	die;
}
	<?php
	use Dompdf\Dompdf;
	use Dompdf\Options;

	add_action('wp', 'sd_generate_pdf');
	function sd_generate_pdf() {

	// Only on post with id 750
	if( get_the_ID() != 750 ) {
	return;
	}

	// Include Dompdf
	$dompdf_path = ABSPATH . 'wp-content/plugins/pdftest/includes/includes/dompdf/autoload.inc.php';
	//echo $dompdf_path;
	require_once $dompdf_path;

	// instantiate and use the dompdf class
	$options = new Options();
	// external images
	$options->set('isRemoteEnabled', true);
	$dompdf = new Dompdf($options);

	// get post_id via GET
	$post_id = $_GET['id'];

	ob_start();
	?>

	<!DOCTYPE html>
	<html>
	<head>
	<title>Page Title</title>
	<style>

	@page {
	size: a4 portrait;
	margin: 0;
	padding: 0;
	border: none;
	}
	body {
	font-family: Arial,Verdana,sans-serif;
	font-size: 33px;
	text-align: center;
	border: none;
	}

	</style>
	</head>
	<body>

	<!-- content here -->


	</body>
	</html>

	<?php

	$dompdf->loadHtml( ob_get_clean() );

	// (Optional) Setup the paper size and orientation
	$dompdf->setPaper('A4', 'portrait');

	// Render the HTML as PDF
	$dompdf->render();

	// Output the generated PDF to Browser
	$dompdf->stream();

	die;
	}