| public indexBy ( string | callable $column ) | ||
| $column | string | callable | the name of the column by which the query results should be indexed by. This can also be a callable (e.g. anonymous function) that returns the index value based on the given row data. The signature of the callable should be: ```php function ($row) { // return the index value corresponding to $row } ``` |
public function indexBy($column);