Muiple domain names, single WP site

Hi,

I have 3 domain names that all point to the same physical instance of WordPress – Is there any way I can configure wordpress so that the permalinks and media etc. use the HTTP host instead of the settings for home and site url in the admin panel?

For example I have https://www.wcka-caerphilly.co.uk and https://www.wcka-merthyr-tydfil.co.uk – the WP site settings specify https://www.wcka-caerphilly.co.uk as the site / home url so when I access via https://www.wcka-merthyr-tydfil.co.uk or links, menu options, images and permalinks etc. redirect to https://www.wcka-caerphilly.co.uk instead of using the https://www.wcka-merthyr-tydfil.co.uk url which actually points to the same site.

Hope this makes sense – any advise appreciated.