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<?php
/**
* @package dompdf
* @link http://dompdf.github.com/
* @author Benj Carson <benjcarson@digitaljunkies.ca>
* @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
*/
namespace Dompdf;
/**
* Executes inline PHP code during the rendering process
*
* @package dompdf
*/
class PhpEvaluator
{
/**
* @var Canvas
*/
protected $_canvas;
/**
* PhpEvaluator constructor.
* @param Canvas $canvas
*/
public function __construct(Canvas $canvas)
{
$this->_canvas = $canvas;
}
/**
* @param $code
* @param array $vars
*/
public function evaluate($code, $vars = [])
{
if (!$this->_canvas->get_dompdf()->getOptions()->getIsPhpEnabled()) {
return;
}
// Set up some variables for the inline code
$pdf = $this->_canvas;
$fontMetrics = $pdf->get_dompdf()->getFontMetrics();
$PAGE_NUM = $pdf->get_page_number();
$PAGE_COUNT = $pdf->get_page_count();
// Override those variables if passed in
foreach ($vars as $k => $v) {
$$k = $v;
}
eval($code);
}
/**
* @param Frame $frame
*/
public function render(Frame $frame)
{
$this->evaluate($frame->get_node()->nodeValue);
}
}
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