original_string: public function leftJoin($table, $alias = null, $on = null)
      {
          return $this->join($table, $alias, $on, 'LEFT JOIN');
      }
code: public function leftJoin($table, $alias = null, $on = null)
      {
          return $this->join($table, $alias, $on, 'LEFT JOIN');
      }
code_tokens: public function leftJoin ( $ table , $ alias = null , $ on = null ) { return $ this -> join ( $ table , $ alias , $ on , 'LEFT JOIN' ) ; }
docstring: LEFT OUTER Join a table
  
  @param string $table
  @param string $alias
  @param string $on
  @return $this
docstring_tokens: LEFT OUTER Join a table