$instance $instance : mixed Public static variable to hold the single instance of the class. Type mixed — Default null
get_class_name() get_class_name() : string Method get_class_name() Get class name. Returns string — CLASS Class name.
instance() instance() : mixed Method instance() Create a public static instance. Returns mixed — Class instance.
validate_params() validate_params(string $name = '', mixed $def_value = '') : mixed Method validate_params() Handle to valid request params. Parameters string $name Field name. mixed $def_value Default value. Returns mixed — value.