src/Ubiquity/utils/http/USession.php
public static function inc($key, $inc = 1) {
		return self::set ( $key, self::get ( $key, 0 ) + $inc );
	}
public static function inc($key, $inc = 1) {
		return self::set ( $key, self::get ( $key, 0 ) + $inc );
	}
public static function inc ( $ key , $ inc = 1 ) { return self :: set ( $ key , self :: get ( $ key , 0 ) + $ inc ) ; }
Increment the value at the key index in session

@param string $key
@param number $inc
@return number
Increment the value at the key index in session