UNIFIED DATA PROCESSING FRAMEWORK

composer require flow-php/etl ^0.10.0

Changelog

Extracts

Read from various data sources.

Transforms

Shape and optimize for your needs.

Loads

Store and secure in one of many available data sinks.

Modules

Definition

source

/**
 *  In order to iterate only over <element> nodes use `from_xml($file)->withXMLNodePath('root/elements/element')`.
 *
 *  <root>
 *    <elements>
 *      <element></element>
 *      <element></element>
 *    <elements>
 *  </root>
 *
 *  XML Node Path does not support attributes and it's not xpath, it is just a sequence
 *  of node names separated with slash.
 *
 * @param Path|string $path
 * @param string $xml_node_path - @deprecated use `from_xml($file)->withXMLNodePath($xmlNodePath)` method instead
 */
from_xml(Path|string $path, string $xml_node_path) : XMLParserExtractor

Usage Examples

Example: Data source - Xml

<?php

declare(strict_types=1);

use function Flow\ETL\Adapter\XML\from_xml;
use function Flow\ETL\DSL\{data_frame, ref, to_stream};

require __DIR__ . '/../../../autoload.php';

data_frame()
    ->read(
        from_xml(__DIR__ . '/input/dataset.xml')
            ->withXMLNodePath('users/user')
    )
    ->withEntry('id', ref('node')->domElementAttributeValue('id'))
    ->withEntry('name', ref('node')->xpath('name')->domElementValue())
    ->withEntry('active', ref('node')->xpath('active')->domElementValue())
    ->withEntry('email', ref('node')->xpath('email')->domElementValue())
    ->drop('node')
    ->collect()
    ->write(to_stream(__DIR__ . '/output.txt', truncate: false))
    ->run();

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