1. sfConfig.class.php
  2. /**
 * sfConfig stores all configuration information for a symfony application.
 *
 * @package    symfony
 * @subpackage config
 * @author     Fabien Potencier 
 * @version    SVN: $Id: sfConfig.class.php 23810 2009-11-12 11:07:44Z Kris.Wallsmith $
 */
  3. class sfConfig
  4. {
  5.   protected static
  6.     $config = array();
  8.   /**
  9.    * Retrieves a config parameter.
  10.    *
  11.    * @param string $name    A config parameter name
  12.    * @param mixed  $default A default config parameter value
  13.    *
  14.    * @return mixed A config parameter value, if the config parameter exists, otherwise null
  15.    */
  16.   public static function get($name, $default = null)
  17.   {
  18.     return isset(self::$config[$name]) ? self::$config[$name] : $default;
  19.   }
  21.   /**
  22.    * Indicates whether or not a config parameter exists.
  23.    *
  24.    * @param string $name A config parameter name
  25.    *
  26.    * @return bool true, if the config parameter exists, otherwise false
  27.    */
  28.   public static function has($name)
  29.   {
  30.     return array_key_exists($name, self::$config);
  31.   }
  33.   /**
  34.    * Sets a config parameter.
  35.    *
  36.    * If a config parameter with the name already exists the value will be overridden.
  37.    *
  38.    * @param string $name  A config parameter name
  39.    * @param mixed  $value A config parameter value
  40.    */
  41.   public static function set($name, $value)
  42.   {
  43.     self::$config[$name] = $value;
  44.   }
  46.   /**
  47.    * Sets an array of config parameters.
  48.    *
  49.    * If an existing config parameter name matches any of the keys in the supplied
  50.    * array, the associated value will be overridden.
  51.    *
  52.    * @param array $parameters An associative array of config parameters and their associated values
  53.    */
  54.   public static function add($parameters = array())
  55.   {
  56.     self::$config = array_merge(self::$config, $parameters);
  57.   }
  59.   /**
  60.    * Retrieves all configuration parameters.
  61.    *
  62.    * @return array An associative array of configuration parameters.
  63.    */
  64.   public static function getAll()
  65.   {
  66.     return self::$config;
  67.   }
  69.   /**
  70.    * Clears all current config parameters.
  71.    */
  72.   public static function clear()
  73.   {
  74.     self::$config = array();
  75.   }
  76. }
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