Example: Sort
Topic: Transformations
Code
<?php
declare(strict_types=1);
use function Flow\ETL\DSL\{data_frame, from_sequence_number, ref, to_stream};
require __DIR__ . '/../../../autoload.php';
data_frame()
->read(from_sequence_number('id', 0, 10))
->sortBy(ref('id')->desc())
->collect()
->write(to_stream(__DIR__ . '/output.txt', truncate: false))
->run();
Output
+----+
| id |
+----+
| 10 |
| 9 |
| 8 |
| 7 |
| 6 |
| 5 |
| 4 |
| 3 |
| 2 |
| 1 |
| 0 |
+----+
11 rows
Examples
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