Jump to content

Cannot Upgrade to php 8.0 or 8.1

Go to solution Solved by WHMCS John,

Recommended Posts


every time I try to upgrade php to 8+ I get a 503 error on the site. I am running the latest version of WHMCS:

"The update from 8.7.1-release.1 to 8.7.3-release.1 was completed successfully."

but as i said, php8 and 8.1 give me a 503, any idea why i am having this issue? Isn't WHMCS compatible with php8+?


Link to comment
Share on other sites

  • WHMCS Support Manager
  • Solution

Hi @UXmedia,

WHMCS v8.6 and above is indeed compatible wit PHP 8.1.

This isn't a PHP or application-related error.  You'll need to check your server logs for more information.

If you're running a cPanel server, this guide should get you started: https://support.cpanel.net/hc/en-us/articles/360047737894-About-503-Service-Unavailable-errors

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Create New...

Important Information

By using this site, you agree to our Terms of Use & Guidelines and understand your posts will initially be pre-moderated