original_string: public function toggleFrozen($freeze = null)
      {
          $old = $this->frozen;
          if (null !== $freeze) {
              $this->frozen = (bool)$freeze;
          }
          return $old;
      }
code: public function toggleFrozen($freeze = null)
      {
          $old = $this->frozen;
          if (null !== $freeze) {
              $this->frozen = (bool)$freeze;
          }
          return $old;
      }
code_tokens: public function toggleFrozen ( $ freeze = null ) { $ old = $ this -> frozen ; if ( null !== $ freeze ) { $ this -> frozen = ( bool ) $ freeze ; } return $ old ; }
docstring: Changes the element's frozen status
  
  @param    bool    Whether the element should be frozen or editable. If
  omitted, the method will not change the frozen status,
  just return its current value
  @return   bool    Old value of element's frozen status
docstring_tokens: Changes the element s frozen status