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Classes

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 1: <?php
 2: 
 3: /**
 4:  * This file is part of the Nette Framework (http://nette.org)
 5:  *
 6:  * Copyright (c) 2004 David Grudl (http://davidgrudl.com)
 7:  *
 8:  * For the full copyright and license information, please view
 9:  * the file license.txt that was distributed with this source code.
10:  * @package Nette\Config
11:  */
12: 
13: 
14: 
15: /**
16:  * Configuration helpers.
17:  *
18:  * @author     David Grudl
19:  * @package Nette\Config
20:  */
21: class ConfigHelpers
22: {
23:     const EXTENDS_KEY = '_extends',
24:         OVERWRITE = TRUE;
25: 
26: 
27:     /**
28:      * Merges configurations. Left has higher priority than right one.
29:      * @return array
30:      */
31:     public static function merge($left, $right)
32:     {
33:         if (is_array($left) && is_array($right)) {
34:             foreach ($left as $key => $val) {
35:                 if (is_int($key)) {
36:                     $right[] = $val;
37:                 } else {
38:                     if (is_array($val) && isset($val[self::EXTENDS_KEY])) {
39:                         if ($val[self::EXTENDS_KEY] === self::OVERWRITE) {
40:                             unset($val[self::EXTENDS_KEY]);
41:                         }
42:                     } elseif (isset($right[$key])) {
43:                         $val = self::merge($val, $right[$key]);
44:                     }
45:                     $right[$key] = $val;
46:                 }
47:             }
48:             return $right;
49: 
50:         } elseif ($left === NULL && is_array($right)) {
51:             return $right;
52: 
53:         } else {
54:             return $left;
55:         }
56:     }
57: 
58: 
59:     /**
60:      * Finds out and removes information about the parent.
61:      * @return mixed
62:      */
63:     public static function takeParent(& $data)
64:     {
65:         if (is_array($data) && isset($data[self::EXTENDS_KEY])) {
66:             $parent = $data[self::EXTENDS_KEY];
67:             unset($data[self::EXTENDS_KEY]);
68:             return $parent;
69:         }
70:     }
71: 
72: 
73:     /**
74:      * @return bool
75:      */
76:     public static function isOverwriting(& $data)
77:     {
78:         return is_array($data) && isset($data[self::EXTENDS_KEY]) && $data[self::EXTENDS_KEY] === self::OVERWRITE;
79:     }
80: 
81: 
82:     /**
83:      * @return bool
84:      */
85:     public static function isInheriting(& $data)
86:     {
87:         return is_array($data) && isset($data[self::EXTENDS_KEY]) && $data[self::EXTENDS_KEY] !== self::OVERWRITE;
88:     }
89: 
90: }
91: 
Nette Framework 2.0.12 (for PHP 5.2, un-prefixed) API API documentation generated by ApiGen 2.8.0