Title: HeadersCollection::getAsString
Published: May 20, 2026

---

# HeadersCollection::getAsString( string $name ): string|null

## In this article

 * [Parameters](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-http-collections-headerscollection/getasstring/?output_format=md#parameters)
 * [Return](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-http-collections-headerscollection/getasstring/?output_format=md#return)
 * [Source](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-http-collections-headerscollection/getasstring/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-http-collections-headerscollection/getasstring/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-http-collections-headerscollection/getasstring/?output_format=md#changelog)

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

Gets header values as a comma-separated string.

## 󠀁[Parameters](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-http-collections-headerscollection/getasstring/?output_format=md#parameters)󠁿

 `$name`stringrequired

The header name (case-insensitive).

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

 string|null The header values as a comma-separated string or null if not found.

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

    ```php
    public function getAsString(string $name): ?string
    {
        $values = $this->get($name);
        return $values !== null ? implode(', ', $values) : null;
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/php-ai-client/src/providers/http/collections/headerscollection.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.0/src/wp-includes/php-ai-client/src/Providers/Http/Collections/HeadersCollection.php#L73)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/php-ai-client/src/Providers/Http/Collections/HeadersCollection.php#L73-L77)

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

| Uses | Description | 
| [HeadersCollection::get()](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-http-collections-headerscollection/get/)`wp-includes/php-ai-client/src/Providers/Http/Collections/HeadersCollection.php` |

Gets a specific header value.

  |

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

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

## User Contributed Notes

You must [log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fdeveloper.wordpress.org%2Freference%2Fclasses%2Fwordpress-aiclient-providers-http-collections-headerscollection%2Fgetasstring%2F)
before being able to contribute a note or feedback.