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Diffstat (limited to 'user_guide_src/source/general/common_functions.rst')
| -rw-r--r-- | user_guide_src/source/general/common_functions.rst | 38 |
1 files changed, 24 insertions, 14 deletions
diff --git a/user_guide_src/source/general/common_functions.rst b/user_guide_src/source/general/common_functions.rst index 99126f900..7f327f00b 100644 --- a/user_guide_src/source/general/common_functions.rst +++ b/user_guide_src/source/general/common_functions.rst @@ -7,7 +7,7 @@ defined, and are available to you at any point. These do not require loading any libraries or helpers. is_php('version_number') -========================== +======================== is_php() determines of the PHP version being used is greater than the supplied version_number. @@ -24,7 +24,7 @@ greater than the supplied version number. Returns FALSE if the installed version of PHP is lower than the supplied version number. is_really_writable('path/to/file') -==================================== +================================== is_writable() returns TRUE on Windows servers when you really can't write to the file as the OS reports to PHP as FALSE only if the @@ -44,20 +44,24 @@ recommended on platforms where this information may be unreliable. } config_item('item_key') -========================= +======================= -The :doc:`Config library <../libraries/config>` is the preferred way of -accessing configuration information, however config_item() can be used -to retrieve single keys. See Config library documentation for more -information. +The :doc:`Config Library <../libraries/config>` is the preferred way of +accessing configuration information, however ``config_item()`` can be used +to retrieve single keys. See :doc:`Config Library <../libraries/config>` +documentation for more information. + +.. important:: This function only returns values set in your configuration + files. It does not take into account config values that are + dynamically set at runtime. show_error('message'), show_404('page'), log_message('level', 'message') ======================================================================== These are each outlined on the :doc:`Error Handling <errors>` page. -set_status_header(code, 'text'); -================================ +set_status_header(code, 'text') +=============================== Permits you to manually set a server status header. Example:: @@ -68,19 +72,25 @@ Permits you to manually set a server status header. Example:: a full list of headers. remove_invisible_characters($str) -=================================== +================================= This function prevents inserting null characters between ascii characters, like Java\\0script. html_escape($mixed) -==================== +=================== -This function provides short cut for htmlspecialchars() function. It +This function provides short cut for ``htmlspecialchars()`` function. It accepts string and array. To prevent Cross Site Scripting (XSS), it is very useful. get_mimes() -============= +=========== + +This function returns the MIMEs array *from config/mimes.php*. + +is_https() +========== -This function returns the MIMEs array from config/mimes.php.
\ No newline at end of file +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 |