Zend Framework (http://framework.zend.com/)
| InjectContentTypeTrait |
<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @see http://github.com/zendframework/zend-diactoros for the canonical source repository
* @copyright Copyright (c) 2015-2016 Zend Technologies USA Inc. (http://www.zend.com)
* @license https://github.com/zendframework/zend-diactoros/blob/master/LICENSE.md New BSD License
*/
namespace Zend\Diactoros\Response;
use function array_keys;
use function array_reduce;
use function strtolower;
trait InjectContentTypeTrait
{
/**
* Inject the provided Content-Type, if none is already present.
*
* @param string $contentType
* @param array $headers
* @return array Headers with injected Content-Type
*/
private function injectContentType($contentType, array $headers)
{
$hasContentType = array_reduce(array_keys($headers), function ($carry, $item) {
return $carry ?: (strtolower($item) === 'content-type');
}, false);
if (! $hasContentType) {
$headers['content-type'] = [$contentType];
}
return $headers;
}
}