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+=============
+URI templates
+=============
+
+The ``$uri`` passed to one of the client's request creational methods or the base URL of a client can utilize URI
+templates. Guzzle supports the entire `URI templates RFC <http://tools.ietf.org/html/rfc6570>`_. URI templates add a
+special syntax to URIs that replace template place holders with user defined variables.
+
+Every request created by a Guzzle HTTP client passes through a URI template so that URI template expressions are
+automatically expanded:
+
+.. code-block:: php
+
+ $client = new Guzzle\Http\Client('https://example.com/', array('a' => 'hi'));
+ $request = $client->get('/{a}');
+
+Because of URI template expansion, the URL of the above request will become ``https://example.com/hi``. Notice that
+the template was expanded using configuration variables of the client. You can pass in custom URI template variables
+by passing the URI of your request as an array where the first index of the array is the URI template and the second
+index of the array are template variables that are merged into the client's configuration variables.
+
+.. code-block:: php
+
+ $request = $client->get(array('/test{?a,b}', array('b' => 'there')));
+
+The URL for this request will become ``https://test.com?a=hi&b=there``. URI templates aren't limited to just simple
+variable replacements; URI templates can provide an enormous amount of flexibility when creating request URIs.
+
+.. code-block:: php
+
+ $request = $client->get(array('http://example.com{+path}{/segments*}{?query,data*}', array(
+ 'path' => '/foo/bar',
+ 'segments' => array('one', 'two'),
+ 'query' => 'test',
+ 'data' => array(
+ 'more' => 'value'
+ )
+ )));
+
+The resulting URL would become ``http://example.com/foo/bar/one/two?query=test&more=value``.
+
+By default, URI template expressions are enclosed in an opening and closing brace (e.g. ``{var}``). If you are working
+with a web service that actually uses braces (e.g. Solr), then you can specify a custom regular expression to use to
+match URI template expressions.
+
+.. code-block:: php
+
+ $client->getUriTemplate()->setRegex('/\<\$(.+)\>/');
+ $client->get('/<$a>');
+
+You can learn about all of the different features of URI templates by reading the
+`URI templates RFC <http://tools.ietf.org/html/rfc6570>`_.