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<?php declare(strict_types=1);
/**
* This file is part of the Csv-Machine package.
*
* (c) Dan McAdams <[email protected]>
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace RoadBunch\Csv\Formatter;
* Class Formatter
* @author Dan McAdams
* @package RoadBunch\Csv\Formatters
class Formatter implements FormatterInterface
{
/** @var callable */
protected $callback;
* Formatter constructor.
* @param callable $callback
public function __construct(callable $callback)
$this->callback = $callback;
}
* @param array $header an array of strings to be formatted
* @return array
public function format(array $header): array
$formatted = [];
foreach ($header as $value) {
if (!is_string($value)) {
throw new \InvalidArgumentException('All elements of the array must be strings');
$formatted[] = call_user_func($this->callback, $value);
return $formatted;
The-Road-Bunch /
csv-machine
