Added is_cli_request() method to documentation for Input class.
diff --git a/user_guide/libraries/input.html b/user_guide/libraries/input.html
index d7e898b..b34938b 100644
--- a/user_guide/libraries/input.html
+++ b/user_guide/libraries/input.html
@@ -269,7 +269,11 @@
<h2>$this->input->is_ajax_request()</h2>
<p>Checks to see if the <var>HTTP_X_REQUESTED_WITH</var> server header has been set, and returns a boolean response.</p>
-<code>$this->input->is_ajax_request()</code>
+
+<h2>$this->input->is_cli_request()</h2>
+<p>Checks to see if the <var>STDIN</var> constant is set, which is a failsafe way to see if PHP is being run on the command line.</p>
+
+<code>$this->input->is_cli_request()</code>
</div>