diff options
Diffstat (limited to 'user_guide_src/source')
| -rw-r--r-- | user_guide_src/source/changelog.rst | 2 | ||||
| -rw-r--r-- | user_guide_src/source/general/common_functions.rst | 15 |
2 files changed, 16 insertions, 1 deletions
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst index f4cb90c71..dfb21a210 100644 --- a/user_guide_src/source/changelog.rst +++ b/user_guide_src/source/changelog.rst @@ -54,6 +54,7 @@ Release Date: Not Released - Changed environment defaults to report all errors in *development* and only fatal ones in *testing*, *production* but only display them in *development*. - Updated *ip_address* database field lengths from 16 to 45 for supporting IPv6 address on :doc:`Trackback Library <libraries/trackback>` and :doc:`Captcha Helper <helpers/captcha_helper>`. - Removed *cheatsheets* and *quick_reference* PDFs from the documentation. + - Added availability checks where usage of dangerous functions like ``eval()`` and ``exec()`` is required. - Helpers @@ -270,6 +271,7 @@ Release Date: Not Released - Removed redundant conditional to determine HTTP server protocol in ``set_status_header()``. - Changed ``_exception_handler()`` to respect php.ini *display_errors* setting. - Added function ``is_https()`` to check if a secure connection is used. + - Added function ``function_usable()`` to check if a function exists and is not disabled by `Suhosin <http://www.hardened-php.net/suhosin/>`. - Added support for HTTP-Only cookies with new config option *cookie_httponly* (default FALSE). - Renamed method ``_call_hook()`` to ``call_hook()`` in the :doc:`Hooks Library <general/hooks>`. - :doc:`Output Library <libraries/output>` changes include: diff --git a/user_guide_src/source/general/common_functions.rst b/user_guide_src/source/general/common_functions.rst index 7f327f00b..22f8d1942 100644 --- a/user_guide_src/source/general/common_functions.rst +++ b/user_guide_src/source/general/common_functions.rst @@ -93,4 +93,17 @@ is_https() ========== Returns TRUE if a secure (HTTPS) connection is used and FALSE -in any other case (including non-HTTP requests).
\ No newline at end of file +in any other case (including non-HTTP requests). + +function_usable($function_name) +=============================== + +Returns TRUE if a function exists and is usable, FALSE otherwise. + +This function runs a ``function_exists()`` check and if the +`Suhosin extension <http://www.hardened-php.net/suhosin/>` is loaded, +checks if it doesn't disable the function being checked. + +It is useful if you want to check for the availability of functions +such as ``eval()`` and ``exec()``, which are dangerous and might be +disabled on servers with highly restrictive security policies.
\ No newline at end of file |