<?php
declare(strict_types=1);
namespace ParagonIE\Ionizer\Filter;
use ParagonIE\Ionizer\InvalidDataException;
use ParagonIE\Ionizer\Util;
/**
* Class StringArrayFilter
* @package ParagonIE\Ionizer\Filter
*/
class StringArrayFilter extends ArrayFilter
{
/**
* @var string
*/
protected $type = 'string[]';
/**
* Apply all of the callbacks for this filter.
*
* @param mixed $data
* @param int $offset
* @return mixed
* @throws \TypeError
* @throws InvalidDataException
*/
public function applyCallbacks($data = null, int $offset = 0)
{
if ($offset === 0) {
if (\is_null($data)) {
return parent::applyCallbacks([], 0);
} elseif (!\is_array($data)) {
throw new \TypeError(
\sprintf('Expected an array of string (%s).', $this->index)
);
}
/** @var array<string, string> $data */
$data = (array) $data;
if (!Util::is1DArray((array) $data)) {
throw new \TypeError(
\sprintf('Expected a 1-dimensional array (%s).', $this->index)
);
}
/** @var string|int|float|bool|array|null $val */
foreach ($data as $key => $val) {
if (\is_array($val)) {
throw new \TypeError(
\sprintf('Expected a 1-dimensional array (%s).', $this->index)
);
}
if (\is_null($val)) {
$data[$key] = '';
} elseif (\is_numeric($val)) {
$data[$key] = (string) $val;
} elseif (!\is_string($val)) {
throw new \TypeError(
\sprintf('Expected a string at index %s (%s).', $key, $this->index)
);
}
}
return parent::applyCallbacks($data, 0);
}
return parent::applyCallbacks($data, $offset);
}
}
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