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, lit, ref, row, rows, to_stream};
require __DIR__ . '/../../../autoload.php';
data_frame()
->read(from_rows(rows(
row(int_entry('a', 4), int_entry('b', 5)),
row(int_entry('a', 3), int_entry('b', 6))
)))
->filter(ref('b')->mod(lit(2))->equals(lit(0)))
->write(to_stream(__DIR__ . '/output.txt', truncate: false))
->run();
Output
+---+---+
| a | b |
+---+---+
| 3 | 6 |
+---+---+
1 rows
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