DSL · Xml

from_xml

Definition

/**
 *  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

Data frame · Data reading

<?php

declare(strict_types=1);

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

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

data_frame()
    ->read(
        from_xml(__DIR__ . '/data/orders.xml')
            ->withXMLNodePath('rows/row')
    )
    ->withEntry('id', ref('node')->xpath('order_id')->domElementValue())
    ->withEntry('seller_id', ref('node')->xpath('seller_id')->domElementValue())
    ->withEntry('created_at', ref('node')->xpath('created_at')->domElementValue())
    ->withEntry('cancelled_at', ref('node')->xpath('cancelled_at')->domElementValue())
    ->withEntry('discount', ref('node')->xpath('discount')->domElementValue())
    ->drop('node')
    ->collect()
    ->write(to_output(truncate: false))
    ->run();

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