$table_prefix = substr(CONFIG_TABLE, 0, -6); // strlen(config)

		if (strlen($table_name . $index_name) - strlen($table_prefix) > 24)

		{

			$max_length = $table_prefix + 24;

			trigger_error("Index name '{$table_name}_$index_name' on table '$table_name' is too long. The maximum is $max_length characters.", E_USER_ERROR);

		}

$max_length = $table_prefix + 24;