DSL · Csv

from_csv

Definition

/**
 * @param Path|string $path
 * @param bool $empty_to_null - @deprecated use $loader->withEmptyToNull() instead
 * @param bool $with_header - @deprecated use $loader->withHeader() instead
 * @param null|string $separator - @deprecated use $loader->withSeparator() instead
 * @param null|string $enclosure - @deprecated use $loader->withEnclosure() instead
 * @param null|string $escape - @deprecated use $loader->withEscape() instead
 * @param int<1, max> $characters_read_in_line - @deprecated use $loader->withCharactersReadInLine() instead
 * @param null|Schema $schema - @deprecated use $loader->withSchema() instead
 */
from_csv(Path|string $path, bool $with_header, bool $empty_to_null, ?string $separator, ?string $enclosure, ?string $escape, int $characters_read_in_line, ?Schema $schema) : CSVExtractor

Usage examples

Data frame · Data reading

<?php

declare(strict_types=1);

use function Flow\ETL\Adapter\CSV\from_csv;
use function Flow\ETL\DSL\{data_frame, to_output};

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

data_frame()
    ->read(from_csv(
        __DIR__ . '/input/dataset.csv',
        with_header: true,
        empty_to_null: true,
        separator: ',',
        enclosure: '"',
        escape: '\\',
        characters_read_in_line: 1000
    ))
    ->collect()
    ->write(to_output(truncate: false))
    ->run();

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