Title: Request::getContentType
Published: May 20, 2026

---

# Request::getContentType(): string|null

## In this article

 * [Return](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-http-dto-request/getcontenttype/?output_format=md#return)
 * [Source](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-http-dto-request/getcontenttype/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-http-dto-request/getcontenttype/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-http-dto-request/getcontenttype/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-http-dto-request/getcontenttype/?output_format=md#wp--skip-link--target)

This function’s access is marked private. This means it is not intended for use 
by plugin or theme developers, only by core. It is listed here for completeness.

Gets the Content-Type header value.

## 󠀁[Return](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-http-dto-request/getcontenttype/?output_format=md#return)󠁿

 string|null The Content-Type header value or null if not set.

## 󠀁[Source](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-http-dto-request/getcontenttype/?output_format=md#source)󠁿

    ```php
    private function getContentType(): ?string
    {
        $values = $this->getHeader('Content-Type');
        return $values !== null ? $values[0] : null;
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/php-ai-client/src/providers/http/dto/request.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.0/src/wp-includes/php-ai-client/src/Providers/Http/DTO/Request.php#L229)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/php-ai-client/src/Providers/Http/DTO/Request.php#L229-L233)

## 󠀁[Related](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-http-dto-request/getcontenttype/?output_format=md#related)󠁿

| Uses | Description | 
| [Request::getHeader()](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-http-dto-request/getheader/)`wp-includes/php-ai-client/src/Providers/Http/DTO/Request.php` |

Gets a specific header value.

  |

| Used by | Description | 
| [Request::getBody()](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-http-dto-request/getbody/)`wp-includes/php-ai-client/src/Providers/Http/DTO/Request.php` |

Gets the request body.

  |

## 󠀁[Changelog](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-http-dto-request/getcontenttype/?output_format=md#changelog)󠁿

| Version | Description | 
| [0.1.0](https://developer.wordpress.org/reference/since/0.1.0/) | Introduced. |

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