Extracts
Read from various data sources.
Transforms
Shape and optimize for your needs.
Loads
Store and secure in one of many available data sinks.
Examples:
Code
<?php
declare(strict_types=1);
use function Flow\ETL\DSL\{data_frame, from_rows, int_entry, ref, row, rows, sum, to_stream};
require __DIR__ . '/../../../autoload.php';
data_frame()
->from(from_rows(rows(
row(int_entry('a', 100)),
row(int_entry('a', 100)),
row(int_entry('a', 200)),
row(int_entry('a', 400)),
row(int_entry('a', 400))
)))
->aggregate(sum(ref('a')))
->write(to_stream(__DIR__ . '/output.txt', truncate: false))
->run();
Output
+-------+
| a_sum |
+-------+
| 1200 |
+-------+
1 rows
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