Title: Requests::flattern
Published: August 16, 2016
Last modified: November 2, 2022

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# Requests::flattern( array $array ): array

## In this article

 * [Parameters](https://developer.wordpress.org/reference/classes/requests/flattern/?output_format=md#parameters)
 * [Return](https://developer.wordpress.org/reference/classes/requests/flattern/?output_format=md#return)
 * [Source](https://developer.wordpress.org/reference/classes/requests/flattern/?output_format=md#source)

[ Back to top](https://developer.wordpress.org/reference/classes/requests/flattern/?output_format=md#wp--skip-link--target)

This method has been deprecated since Misspelling of {@see Requests::flatten}. Misspelling
of {@see Requests::flatten} instead.

Convert a key => value array to a ‘key: value’ array for headers

## 󠀁[Parameters](https://developer.wordpress.org/reference/classes/requests/flattern/?output_format=md#parameters)󠁿

 `$array`arrayrequired

Dictionary of header values

## 󠀁[Return](https://developer.wordpress.org/reference/classes/requests/flattern/?output_format=md#return)󠁿

 array List of headers

## 󠀁[Source](https://developer.wordpress.org/reference/classes/requests/flattern/?output_format=md#source)󠁿

[View all references](https://developer.wordpress.org/reference/files/wp-includes/class-requests.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.0/src/wp-includes/class-requests.php#L813)

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