original_string: public function touch( $time = NULL ) : bool
      {
          if ( $time === NULL ){
              return touch( $this->path );
          }
          return touch( $this->path, $time );
      }
code: public function touch( $time = NULL ) : bool
      {
          if ( $time === NULL ){
              return touch( $this->path );
          }
          return touch( $this->path, $time );
      }
code_tokens: public function touch ( $ time = NULL ) : bool { if ( $ time === NULL ) { return touch ( $ this -> path ) ; } return touch ( $ this -> path , $ time ) ; }
docstring: Update last modified date of the file
  
  @param int|Integer $time      time value to set
  
  @return bool
docstring_tokens: Update last modified date of the file