Function affiliates_update_referral

Update the referral.

Package: affiliates
Author: Karim Rahimpur
Located at lib/core/wp-init.php

Parameters summary
`array`	`$referral_id`	$attributes to update, supports: affiliate_id, post_id, datetime, description, amount, currency_id, status, reference
	`$attributes`

Return value summary
`array`	with keys, values and old_values or null if nothing was updated