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<?php
/**
* League.Csv (https://csv.thephpleague.com)
*
* (c) Ignace Nyamagana Butera <nyamsprod@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
declare(strict_types=1);
namespace League\Csv;
use Throwable;
/**
* SyntaxError Exception.
*/
class SyntaxError extends Exception
{
/**
* @var array<string>
*/
protected array $duplicateColumnNames = [];
/**
* DEPRECATION WARNING! This class will be removed in the next major point release.
*
* @deprecated since version 9.7.0
*/
public function __construct(string $message = '', int $code = 0, Throwable $previous = null)
{
parent::__construct($message, $code, $previous);
}
public static function dueToHeaderNotFound(int $offset): self
{
return new self('The header record does not exist or is empty at offset: `'.$offset.'`');
}
public static function dueToInvalidHeaderColumnNames(): self
{
return new self('The header record contains non string colum names.');
}
public static function dueToDuplicateHeaderColumnNames(array $header): self
{
$instance = new self('The header record contains duplicate column names.');
$instance->duplicateColumnNames = array_keys(array_filter(array_count_values($header), fn (int $value): bool => $value > 1));
return $instance;
}
public function duplicateColumnNames(): array
{
return $this->duplicateColumnNames;
}
}
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