framework/Web/UI/WebControls/TStatements.php


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63

<?php
/**
 * TStatements class file
 *
 * @author Qiang Xue <qiang.xue@gmail.com>
 * @link http://www.pradosoft.com/
 * @copyright Copyright &copy; 2005-2013 PradoSoft
 * @license http://www.pradosoft.com/license/
 * @version $Id$
 * @package System.Web.UI.WebControls
 */

/**
 * TStatements class
 *
 * TStatements executes one or several PHP statements and renders the display
 * generated during the execution. The execution happens during the rendering stage.
 * The PHP statements being executed can be set via the property
 * {@link setStatements Statements}. The context of the statemenets executed
 * is the TStatements object itself.
 *
 * Note, since TStatements allows execution of arbitrary PHP statements,
 * make sure {@link setStatements Statements} does not come directly from user input.
 *
 * @author Qiang Xue <qiang.xue@gmail.com>
 * @version $Id$
 * @package System.Web.UI.WebControls
 * @since 3.0
 */
class TStatements extends TControl
{
	/**
	 * @var string PHP statements
	 */
	private $_s='';

	/**
	 * @return string the statements to be executed
	 */
	public function getStatements()
	{
		return $this->_s;
	}

	/**
	 * @param string the PHP statements to be executed
	 */
	public function setStatements($value)
	{
		$this->_s=$value;
	}

	/**
	 * Renders the evaluation result of the statements.
	 * @param THtmlWriter the writer used for the rendering purpose
	 */
	public function render($writer)
	{
		if($this->_s!=='')
			$writer->write($this->evaluateStatements($this->_s));
	}
}