Fixed issue #197.

CHANGELOG

@@ -29,6 +29,7 @@ Version 1.0.4 to be released
 - New #171: Added version info to yiic help output (Qiang)
 - New #172: Added eAccelerator cache driver (Steffen)
 - New #195: Added CModel::scenario property (Qiang)
+- New #197: Added getParam, getQueryParam and getPostParam to CHttpRequest (Qiang)
 - New #203: Added CZendDataCache (Steffen)
 - New #207: Enhanced CHtml::activeFileField so that we can still use $_POST to detect form submission under some rare cases (Qiang)
 - New #212: 'Readline' support in yiic console script (olafure)

framework/web/CHttpRequest.php

@@ -112,6 +112,52 @@ public function stripSlashes(&$data)
 		return is_array($data)?array_map(array($this,'stripSlashes'),$data):stripslashes($data);
 	}
 
+	/**
+	 * Returns the named GET or POST parameter value.
+	 * If the GET or POST parameter does not exist, the second parameter to this method will be returned.
+	 * If both GET and POST contains such a named parameter, the GET parameter takes precedence.
+	 * @param string the GET parameter name
+	 * @param mixed the default parameter value if the GET parameter does not exist.
+	 * @return mixed the GET parameter value
+	 * @since 1.0.4
+	 * @see getQuery
+	 * @see getPost
+	 */
+	public function getParam($name,$defaultValue=null)
+	{
+		return isset($_GET[$name]) ? $_GET[$name] : (isset($_POST[$name]) ? $_POST[$name] : $defaultValue);
+	}
+
+	/**
+	 * Returns the named GET parameter value.
+	 * If the GET parameter does not exist, the second parameter to this method will be returned.
+	 * @param string the GET parameter name
+	 * @param mixed the default parameter value if the GET parameter does not exist.
+	 * @return mixed the GET parameter value
+	 * @since 1.0.4
+	 * @see getPost
+	 * @see getParam
+	 */
+	public function getQuery($name,$defaultValue=null)
+	{
+		return isset($_GET[$name]) ? $_GET[$name] : $defaultValue;
+	}
+
+	/**
+	 * Returns the named POST parameter value.
+	 * If the POST parameter does not exist, the second parameter to this method will be returned.
+	 * @param string the POST parameter name
+	 * @param mixed the default parameter value if the POST parameter does not exist.
+	 * @return mixed the POST parameter value
+	 * @since 1.0.4
+	 * @see getParam
+	 * @see getQuery
+	 */
+	public function getPost($name,$defaultValue=null)
+	{
+		return isset($_POST[$name]) ? $_POST[$name] : $defaultValue;
+	}
+
 	/**
 	 * @return string part of the request URL after the host info.
 	 * It consists of the following parts: