1: <?php
 2: 
 3: /**
 4:  * This file is part of the Nette Framework (https://nette.org)
 5:  * Copyright (c) 2004 David Grudl (http://davidgrudl.com)
 6:  * @package Nette\Utils
 7:  */
 8: 
 9: 
10: 
11: /**
12:  * Limited scope for PHP code evaluation and script including.
13:  *
14:  * @author     David Grudl
15:  * @package Nette\Utils
16:  */
17: class LimitedScope
18: {
19: 
20:     /**
21:      * Static class - cannot be instantiated.
22:      */
23:     final public function __construct()
24:     {
25:         throw new StaticClassException;
26:     }
27: 
28: 
29:     /**
30:      * Evaluates code in limited scope.
31:      * @param  string  PHP code
32:      * @param  array   local variables
33:      * @return mixed   the return value of the evaluated code
34:      */
35:     public static function evaluate(/*$code, array $vars = NULL*/)
36:     {
37:         if (func_num_args() > 1) {
38:             foreach (func_get_arg(1) as $__k => $__v) $$__k = $__v;
39:             unset($__k, $__v);
40:         }
41:         $res = eval('?>' . func_get_arg(0));
42:         if ($res === FALSE && ($error = error_get_last()) && $error['type'] === E_PARSE) {
43:             throw new FatalErrorException($error['message'], 0, $error['type'], $error['file'], $error['line'], NULL);
44:         }
45:         return $res;
46:     }
47: 
48: 
49:     /**
50:      * Includes script in a limited scope.
51:      * @param  string  file to include
52:      * @param  array   local variables or TRUE meaning include once
53:      * @return mixed   the return value of the included file
54:      */
55:     public static function load(/*$file, array $vars = NULL*/)
56:     {
57:         if (func_num_args() > 1) {
58:             if (func_get_arg(1) === TRUE) {
59:                 return require func_get_arg(0);
60:             }
61:             foreach (func_get_arg(1) as $__k => $__v) $$__k = $__v;
62:             unset($__k, $__v);
63:         }
64:         return require func_get_arg(0);
65:     }
66: 
67: }
68: