original_string: public function getUrlParam($key)
      {
          $pa = $this->getUrlParams();
          return isset($pa[$key]) ? $pa[$key] : null;
      }
code: public function getUrlParam($key)
      {
          $pa = $this->getUrlParams();
          return isset($pa[$key]) ? $pa[$key] : null;
      }
code_tokens: public function getUrlParam ( $ key ) { $ pa = $ this -> getUrlParams ( ) ; return isset ( $ pa [ $ key ] ) ? $ pa [ $ key ] : null ; }
docstring: Get url parameter by key
  @param string $key parameter name
  @return string the parameter value or null if non-exists.
docstring_tokens: Get url parameter by key