original_string: public function get_param($name) {
          if (array_key_exists($name, $this->params)) {
              return $this->params[$name];
          } else {
              return null;
          }
      }
code: public function get_param($name) {
          if (array_key_exists($name, $this->params)) {
              return $this->params[$name];
          } else {
              return null;
          }
      }
code_tokens: public function get_param ( $ name ) { if ( array_key_exists ( $ name , $ this -> params ) ) { return $ this -> params [ $ name ] ; } else { return null ; } }
docstring: Returns a given parameter value from the URL.
  
  @param string $name Name of parameter
  @return string Value of parameter or null if not set
docstring_tokens: Returns a given parameter value from the URL .