WordPress at a glance
filter is not described

wp_http_cookie_value filter-hook . WP 3.4.0

Filters the header-encoded cookie value.

Usage

add_filter( 'wp_http_cookie_value', 'filter_function_name_5967', 10, 2 );
function filter_function_name_5967( $value, $name ){
	// filter...

	return $value;
}
$value(string)
The cookie value.
$name(string)
The cookie name.

Where the hook is called

WP_Http_Cookie::getHeaderValue()
wp_http_cookie_value
wp-includes/class-wp-http-cookie.php 202
return $this->name . '=' . apply_filters( 'wp_http_cookie_value', $this->value, $this->name );

Where the hook is used (in WP core)

Does not used.