function prepareRequestData ();
/**
- * Checks wether a request element is set
+ * Checks whether a request element is set
* @param $element Name of the request element we want to check
- * @return $isSet Wether the request element is set
+ * @return $isSet Whether the request element is set
* @throws MissingArrayElementsException Thrown if a request element is not set
*/
function isRequestElementSet ($element);
function getHeader ($headerName);
/**
- * Sets wether the request was valid (default: true)
+ * Sets whether the request was valid (default: true)
*
- * @param $isValid Wether the request is valid
+ * @param $isValid Whether the request is valid
* @return void
*/
function requestIsValid ($isValid = true);