Title: Cookie::format_for_set_cookie
Published: March 29, 2023
Last modified: November 8, 2023

---

# Cookie::format_for_set_cookie(): string

## In this article

 * [Description](https://developer.wordpress.org/reference/classes/wporg-requests-cookie/format_for_set_cookie/?output_format=md#description)
 * [Return](https://developer.wordpress.org/reference/classes/wporg-requests-cookie/format_for_set_cookie/?output_format=md#return)
 * [Source](https://developer.wordpress.org/reference/classes/wporg-requests-cookie/format_for_set_cookie/?output_format=md#source)

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

Format a cookie for a Set-Cookie header

## 󠀁[Description](https://developer.wordpress.org/reference/classes/wporg-requests-cookie/format_for_set_cookie/?output_format=md#description)󠁿

This is used when sending cookies to clients. This isn’t really applicable to client-
side usage, but might be handy for debugging.

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

 string Cookie formatted for Set-Cookie header

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

    ```php
    public function format_for_set_cookie() {
    	$header_value = $this->format_for_header();
    	if (!empty($this->attributes)) {
    		$parts = [];
    		foreach ($this->attributes as $key => $value) {
    			// Ignore non-associative attributes
    			if (is_numeric($key)) {
    				$parts[] = $value;
    			} else {
    				$parts[] = sprintf('%s=%s', $key, $value);
    			}
    		}

    		$header_value .= '; ' . implode('; ', $parts);
    	}

    	return $header_value;
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/requests/src/cookie.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.1/src/wp-includes/Requests/src/Cookie.php#L382)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/Requests/src/Cookie.php#L382-L399)

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