I have a custom field in wordpress that outputs the ID of an image that is uploaded by the author. I need that custom field to automatically be set as the featured image of each post. I also need a piece of code that will retroactively perform this action as well so that all existing posts will receive a featured image from the same field.
I need this done quickly, in the next few hours. Please only reply if you are completely proficient in what I described above.
And to deter auto-responders, please tell me what 4 plus 7 is when you bid.
Thanks for you time.