original_string: public function removeColumn($name)
      {
          unset($this->columns[$name]);
          if ($this->last_column == $name) {
              $this->last_column = null;
          }
  
          return $this;
      }
code: public function removeColumn($name)
      {
          unset($this->columns[$name]);
          if ($this->last_column == $name) {
              $this->last_column = null;
          }
  
          return $this;
      }
code_tokens: public function removeColumn ( $ name ) { unset ( $ this -> columns [ $ name ] ) ; if ( $ this -> last_column == $ name ) { $ this -> last_column = null ; } return $ this ; }
docstring: Remove column from grid.
  
  @param string $name
  
  @return $this
docstring_tokens: Remove column from grid .