Determines if a text format exists.
$format_id: The ID of the text format to check.
TRUE if the text format exists, FALSE otherwise. Note that for disabled formats filter_format_exists() will return TRUE while filter_format_load() will return FALSE.
function filter_format_exists($format_id) {
return (bool) db_query_range('SELECT 1 FROM {filter_format} WHERE format = :format', 0, 1, array(
':format' => $format_id,
))
->fetchField();
}