| ############## |
| Reserved Names |
| ############## |
| |
| In order to help out, CodeIgniter uses a series of function, method, |
| class and variable names in its operation. Because of this, some names |
| cannot be used by a developer. Following is a list of reserved names |
| that cannot be used. |
| |
| Controller names |
| ---------------- |
| |
| Since your controller classes will extend the main application |
| controller you must be careful not to name your methods identically to |
| the ones used by that class, otherwise your local methods will |
| override them. The following is a list of reserved names. Do not name |
| your controller any of these: |
| |
| - CI_Controller |
| - Default |
| - index |
| |
| Functions |
| --------- |
| |
| - :php:func:`is_php()` |
| - :php:func:`is_really_writable()` |
| - ``load_class()`` |
| - ``is_loaded()`` |
| - ``get_config()`` |
| - :php:func:`config_item()` |
| - :php:func:`show_error()` |
| - :php:func:`show_404()` |
| - :php:func:`log_message()` |
| - :php:func:`set_status_header()` |
| - :php:func:`get_mimes()` |
| - :php:func:`html_escape()` |
| - :php:func:`remove_invisible_characters()` |
| - :php:func:`is_https()` |
| - :php:func:`function_usable()` |
| - :php:func:`get_instance()` |
| - ``_error_handler()`` |
| - ``_exception_handler()`` |
| - ``_stringify_attributes()`` |
| |
| Variables |
| --------- |
| |
| - ``$config`` |
| - ``$db`` |
| - ``$lang`` |
| |
| Constants |
| --------- |
| |
| - ENVIRONMENT |
| - FCPATH |
| - SELF |
| - BASEPATH |
| - APPPATH |
| - VIEWPATH |
| - CI_VERSION |
| - MB_ENABLED |
| - ICONV_ENABLED |
| - UTF8_ENABLED |
| - FILE_READ_MODE |
| - FILE_WRITE_MODE |
| - DIR_READ_MODE |
| - DIR_WRITE_MODE |
| - FOPEN_READ |
| - FOPEN_READ_WRITE |
| - FOPEN_WRITE_CREATE_DESTRUCTIVE |
| - FOPEN_READ_WRITE_CREATE_DESTRUCTIVE |
| - FOPEN_WRITE_CREATE |
| - FOPEN_READ_WRITE_CREATE |
| - FOPEN_WRITE_CREATE_STRICT |
| - FOPEN_READ_WRITE_CREATE_STRICT |
| - SHOW_DEBUG_BACKTRACE |
| - EXIT_SUCCESS |
| - EXIT_ERROR |
| - EXIT_CONFIG |
| - EXIT_UNKNOWN_FILE |
| - EXIT_UNKNOWN_CLASS |
| - EXIT_UNKNOWN_METHOD |
| - EXIT_USER_INPUT |
| - EXIT_DATABASE |
| - EXIT__AUTO_MIN |
| - EXIT__AUTO_MAX |