original_string: public function column($table, $field, $where = null, $options = null)
      {
          $results = $this->fetch($table, $field, $where, $options);
          return array_shift($results);
      }
code: public function column($table, $field, $where = null, $options = null)
      {
          $results = $this->fetch($table, $field, $where, $options);
          return array_shift($results);
      }
code_tokens: public function column ( $ table , $ field , $ where = null , $ options = null ) { $ results = $ this -> fetch ( $ table , $ field , $ where , $ options ) ; return array_shift ( $ results ) ; }
docstring: Retrieve a single value from a single column.
  
  @param string $table The table(s) to query.
  @param string $field The field (column) to query.
  @param array $where An SQL where-array.
  @param array $options Array of options.
  @return mixed A scalar containing the result, or null.
  @throws Dabble\Query\SelectException when no row was found.
  @throws Dabble\Query\SqlException on error.
docstring_tokens: Retrieve a single value from a single column .