php-ml/src/Phpml/Dataset/CsvDataset.php

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<?php
declare (strict_types = 1);
namespace Phpml\Dataset;
use Phpml\Exception\DatasetException;
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class CsvDataset extends ArrayDataset
{
/**
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* @param string $filepath
* @param int $features
* @param bool $headingRow
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*
* @throws DatasetException
*/
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public function __construct(string $filepath, int $features, bool $headingRow = true)
{
if (!file_exists($filepath)) {
throw DatasetException::missingFile(basename($filepath));
}
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if (false === $handle = fopen($filepath, 'r')) {
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throw DatasetException::cantOpenFile(basename($filepath));
}
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if ($headingRow) {
fgets($handle);
}
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while (($data = fgetcsv($handle, 1000, ',')) !== false) {
$this->samples[] = array_slice($data, 0, $features);
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$this->targets[] = $data[$features];
}
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fclose($handle);
}
}