1: <?php
 2: /**
 3:  * WsConfig
 4:  * Sets or fetch config variables. Good practice is to define all default config
 5:  * variables in 'protected/config/config.php' file. 
 6:  *
 7:  * Example usage:
 8:  *
 9:  * <code>
10:  * // get database driver name
11:  * $cs = WsConfig::get('db_driver');
12:  *
13:  * // set database host name to localhost
14:  * WsConfig::set('db_host', 'localhost');
15:  * </code>
16:  * 
17:  */
18: class WsConfig
19: {
20:     private static $vars = array();
21: 
22:     /**
23:      * Sets global configuration variable.
24:      *
25:      * @param string $_name Variable name
26:      * @param string $_value Variable value
27:      * @return boolean True on success
28:      */
29:     public static function set($_name, $_value)
30:     {
31:         self::$vars[$_name] = $_value;
32:         return true;
33:     }
34: 
35: 
36:     /**
37:      * Fetch global configuration variable.
38:      *
39:      * @param string $_name Variable name
40:      * @return string Value of variable
41:      * 
42:      */
43:     public static function get($_name)
44:     {
45:         if(array_key_exists($_name, self::$vars)) {
46:             return self::$vars[$_name];
47:         } else {
48:             return '';
49:         }
50:     }
51: 
52: 
53:     /**
54:      * Check if config variable exists
55:      *
56:      * @param string $_name Variable name
57:      * @return boolean True or False
58:      * 
59:      */
60:     public static function exists($_name)
61:     {
62:         if(array_key_exists($_name, self::$vars)) {
63:             return true;
64:         }
65: 
66:         return false;
67:     }
68: }
69: