Collection

Extracts data from any iterable item. It accepts arrays or traversables objects. The collection items must be associative arrays.

$etl->extract('collection', $iterable, $options);

Tip: Using generators will decrease memory usage.

Options

Columns

Columns from the iterable item that will be extracted.

Type	Default value
array	null

$options = ['columns' => ['id', 'name', 'email']];