sfConfig.class.php

<?php

/*
 * This file is part of the symfony package.
 * (c) 2004-2006 Fabien Potencier <fabien.potencier@symfony-project.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

/**
 * sfConfig stores all configuration information for a symfony application.
 *
 * @author     Fabien Potencier <fabien.potencier@symfony-project.com>
 */
class sfConfig
{
    protected static $config = [];

    /**
     * Retrieves a config parameter.
     *
     * @param string $name    A config parameter name
     * @param mixed  $default A default config parameter value
     *
     * @return mixed A config parameter value, if the config parameter exists, otherwise null
     */
    public static function get($name, $default = null)
    {
        return self::$config[$name] ?? $default;
    }

    /**
     * Indicates whether or not a config parameter exists.
     *
     * @param string $name A config parameter name
     *
     * @return bool true, if the config parameter exists, otherwise false
     */
    public static function has($name)
    {
        return array_key_exists($name, self::$config);
    }

    /**
     * Sets a config parameter.
     *
     * If a config parameter with the name already exists the value will be overridden.
     *
     * @param string $name  A config parameter name
     * @param mixed  $value A config parameter value
     */
    public static function set($name, $value)
    {
        self::$config[$name] = $value;
    }

    /**
     * Sets an array of config parameters.
     *
     * If an existing config parameter name matches any of the keys in the supplied
     * array, the associated value will be overridden.
     *
     * @param array $parameters An associative array of config parameters and their associated values
     */
    public static function add($parameters = [])
    {
        self::$config = array_merge(self::$config, $parameters);
    }

    /**
     * Retrieves all configuration parameters.
     *
     * @return array an associative array of configuration parameters
     */
    public static function getAll()
    {
        return self::$config;
    }

    /**
     * Clears all current config parameters.
     */
    public static function clear()
    {
        self::$config = [];
    }
}