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:
composer.json
{
"name": "flow-php/examples",
"description": "Flow PHP - Examples",
"license": "MIT",
"type": "library",
"require": {
"flow-php/etl": "1.x-dev"
}
}
code.php
<?php
declare(strict_types=1);
use function Flow\ETL\DSL\{data_frame, from_rows, int_entry, lit, ref, row, rows, to_stream};
require __DIR__ . '/vendor/autoload.php';
data_frame()
->read(from_rows(rows(
row(int_entry('a', 100), int_entry('b', 100)),
row(int_entry('a', 100), int_entry('b', 200))
)))
->filter(ref('b')->divide(lit(2))->same(ref('a')))
->withEntry('new_b', ref('b')->multiply(lit(2))->multiply(lit(5)))
->write(to_stream(__DIR__ . '/output.txt', truncate: false))
->run();
Output
+-----+-----+-------+
| a | b | new_b |
+-----+-----+-------+
| 100 | 200 | 2000 |
+-----+-----+-------+
1 rows