php_evaluator.cls.php
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<?php
/**
* DOMPDF - PHP5 HTML to PDF renderer
*
* File: $RCSfile: php_evaluator.cls.php,v $
* Created on: 2004-07-12
*
* Copyright (c) 2004 - Benj Carson <benjcarson@digitaljunkies.ca>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library in the file LICENSE.LGPL; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307 USA
*
* Alternatively, you may distribute this software under the terms of the
* PHP License, version 3.0 or later. A copy of this license should have
* been distributed with this file in the file LICENSE.PHP . If this is not
* the case, you can obtain a copy at http://www.php.net/license/3_0.txt.
*
* The latest version of DOMPDF might be available at:
* http://www.dompdf.com/
*
* @link http://www.dompdf.com/
* @copyright 2004 Benj Carson
* @author Benj Carson <benjcarson@digitaljunkies.ca>
* @package dompdf
*/
/* $Id: php_evaluator.cls.php 216 2010-03-11 22:49:18Z ryan.masten $ */
/**
* Executes inline PHP code during the rendering process
*
* @access private
* @package dompdf
*/
class PHP_Evaluator {
protected $_canvas;
function __construct(Canvas $canvas) {
$this->_canvas = $canvas;
}
function evaluate($code, $vars = array()) {
if ( !DOMPDF_ENABLE_PHP )
return;
// Set up some variables for the inline code
$pdf = $this->_canvas;
$PAGE_NUM = $pdf->get_page_number();
$PAGE_COUNT = $pdf->get_page_count();
// Override those variables if passed in
foreach ($vars as $k => $v) {
$$k = $v;
}
eval(utf8_decode($code));
}
function render($frame) {
$this->evaluate($frame->get_node()->nodeValue);
}
}