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-rw-r--r--system/core/Router.php44
-rw-r--r--user_guide_src/source/changelog.rst25
-rw-r--r--user_guide_src/source/general/routing.rst11
3 files changed, 77 insertions, 3 deletions
diff --git a/system/core/Router.php b/system/core/Router.php
index 5bc053045..e8addf962 100644
--- a/system/core/Router.php
+++ b/system/core/Router.php
@@ -371,10 +371,48 @@ class CI_Router {
$key = str_replace(array(':any', ':num'), array('.+', '[0-9]+'), $key);
// Does the RegEx match?
- if (preg_match('#^'.$key.'$#', $uri))
+ if (preg_match('#^'.$key.'$#', $uri, $matches))
{
- // Do we have a back-reference?
- if (strpos($val, '$') !== FALSE && strpos($key, '(') !== FALSE)
+ // Are we using callbacks to process back-references?
+ if ( ! is_string($val) && is_callable($val))
+ {
+ // Remove the original string from the matches array.
+ array_shift($matches);
+
+ // Get the match count.
+ $match_count = count($matches);
+
+ // Determine how many parameters the callback has.
+ $reflection = new ReflectionFunction($val);
+ $param_count = $reflection->getNumberOfParameters();
+
+ // Are there more parameters than matches?
+ if ($param_count > $match_count)
+ {
+ // Any params without matches will be set to an empty string.
+ $matches = array_merge($matches, array_fill($match_count, $param_count - $match_count, ''));
+
+ $match_count = $param_count;
+ }
+
+ // Get the parameters so we can use their default values.
+ $params = $reflection->getParameters();
+
+ for ($m = 0; $m < $match_count; $m++)
+ {
+ // Is the match empty and does a default value exist?
+ if (empty($matches[$m]) && $params[$m]->isDefaultValueAvailable())
+ {
+ // Substitute the empty match for the default value.
+ $matches[$m] = $params[$m]->getDefaultValue();
+ }
+ }
+
+ // Execute the callback using the values in matches as its parameters.
+ $val = call_user_func_array($val, $matches);
+ }
+ // Are we using the default routing method for back-references?
+ elseif (strpos($val, '$') !== FALSE && strpos($key, '(') !== FALSE)
{
$val = preg_replace('#^'.$key.'$#', $val, $uri);
}
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index d3cebc7cc..c87aebd57 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -145,7 +145,11 @@ Release Date: Not Released
- Added PDO support for ``create_database()``, ``drop_database()`` and ``drop_table()`` in :doc:`Database Forge <database/forge>`.
- Added ``unbuffered_row()`` method for getting a row without prefetching whole result (consume less memory).
- Added PDO support for ``list_fields()`` in :doc:`Database Results <database/results>`.
+<<<<<<< HEAD
+ - Added capability for packages to hold database.php config files
+=======
- Added capability for packages to hold *database.php* config files
+>>>>>>> a7001e968a4791312391eb245ad84888893cda8f
- Added subdrivers support (currently only used by PDO).
- Added MySQL client compression support.
- Added encrypted connections support (for *mysql*, *sqlsrv* and PDO with *sqlsrv*).
@@ -224,6 +228,25 @@ Release Date: Not Released
- Core
- Changed private methods in the :doc:`URI Library <libraries/uri>` to protected so MY_URI can override them.
+<<<<<<< HEAD
+ - Removed CI_CORE boolean constant from CodeIgniter.php (no longer Reactor and Core versions).
+ - Added method get_vars() to the :doc:`Loader Library <libraries/loader>` to retrieve all variables loaded with $this->load->vars().
+ - is_loaded() function from system/core/Commons.php now returns a reference.
+ - $config['rewrite_short_tags'] now has no effect when using PHP 5.4 as *<?=* will always be available.
+ - Added method() to the :doc:`Input Library <libraries/input>` to retrieve $_SERVER['REQUEST_METHOD'].
+ - Modified valid_ip() to use PHP's filter_var() in the :doc:`Input Library <libraries/input>`.
+ - 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>`.
+ - Added get_content_type() method to the :doc:`Output Library <libraries/output>`.
+ - Added get_mimes() function to system/core/Commons.php to return the config/mimes.php array.
+ - Added a second argument to set_content_type() in the :doc:`Output Library <libraries/output>` that allows setting the document charset as well.
+ - $config['time_reference'] now supports all timezone strings supported by PHP.
+ - Added support for HTTP code 303 ("See Other") in set_status_header().
+ - Changed :doc:`Config Library <libraries/config>` method site_url() to accept an array as well.
+ - Added method ``strip_image_tags()`` to the :doc:`Security Library <libraries/security>`.
+ - Changed ``_exception_handler()`` to respect php.ini 'display_errors' setting.
+ - Added possibility to route requests using callback methods.
+=======
- Removed ``CI_CORE`` boolean constant from *CodeIgniter.php* (no longer Reactor and Core versions).
- :doc:`Loader Library <libraries/loader>` changes include:
- Added method ``get_vars()`` to the Loader to retrieve all variables loaded with ``$this->load->vars()``.
@@ -252,6 +275,8 @@ Release Date: Not Released
- Added method ``strip_image_tags()``.
- Added ``$config['csrf_regeneration']``, which makes token regeneration optional.
- Added ``$config['csrf_exclude_uris']``, which allows you list URIs which will not have the CSRF validation methods run.
+>>>>>>> a7001e968a4791312391eb245ad84888893cda8f
+ - Added possibility to route requests using callbacks.
Bug fixes for 3.0
------------------
diff --git a/user_guide_src/source/general/routing.rst b/user_guide_src/source/general/routing.rst
index c03937070..144f129e8 100644
--- a/user_guide_src/source/general/routing.rst
+++ b/user_guide_src/source/general/routing.rst
@@ -111,6 +111,17 @@ call the shirts controller class and the id_123 function.
You can also mix and match wildcards with regular expressions.
+Callbacks
+=========
+
+If you are using PHP >= 5.3 you can use callbacks in place of the normal routing
+rules to process the back-references. Example::
+
+ $route['products/([a-z]+)/edit/(\d+)'] = function ($product_type, $id)
+ {
+ return "catalog/product_edit/" . strtolower($product_type) . "/" . $id;
+ };
+
Reserved Routes
===============