lib/SteamCondenser/Community/WebApi.php
public static function load($format, $interface, $method, $version = 1, $params = null) {
        return self::instance()->_load($format, $interface, $method, $version, $params);
    }
public static function load($format, $interface, $method, $version = 1, $params = null) {
        return self::instance()->_load($format, $interface, $method, $version, $params);
    }
Fetches data from Steam Web API using the specified interface, method
and version. Additional parameters are supplied via HTTP GET. Data is
returned as a String in the given format.

@param string $format The format to load from the API ('json', 'vdf', or
'xml')
@param string $interface The Web API interface to call, e.g. ISteamUser
@param string $method The Web API method to call, e.g.
GetPlayerSummaries
@param int $version The API method version to use
@param array $params Additional parameters to supply via HTTP GET
@return string Data is returned as a String in the given format (which
may be 'json', 'vdf' or 'xml').