# Mautic 4.0 support for PHP 8.0

**URL:** <https://forum.mautic.org/t/mautic-4-0-support-for-php-8-0/21860>\
**Category:** Mautic 4 Install/Upgrade Support\
**Tags:** discussion\
**Created:** [December 2, 2021, 2:29am UTC](https://forum.mautic.org/t/mautic-4-0-support-for-php-8-0/21860 "2021-12-02T02:29:25Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![modifiedcontent](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/modifiedcontent/32/511_2.png) [@modifiedcontent](https://forum.mautic.org/u/modifiedcontent)\
**Post date:** [January 26, 2023, 11:27am UTC](https://forum.mautic.org/t/mautic-4-0-support-for-php-8-0/21860/2 "2023-01-26T11:27:37Z")

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What is the current status of PHP 8 support? Is that still part of Mautic 5?

I tried. Mautic loads with the menu on the left side, but 500 server errors on all pages - Dashboard, Calendar, Contacts, etc.:

> Oops! An Error Occurred  
> The server returned a “500 Internal Server Error”.  
> …

Not a huge problem. I’ll just stay on PHP 7.4 for now. My websites were a mess as well. I have a lot of clean-up to do before I can upgrade I guess.

**Edit:** I see there was [another thread about this here](https://forum.mautic.org/t/is-mautic-4-ready-for-php8-yet/24202/7), with promise of PHP 8 support in Mautic 5.

And I see others have had no problems with PHP 8.0. This is the error in my logs:

> Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 32768 bytes) in /home/username/public\_html/mautic/app/bundles/LeadBundle/Tracker/ContactTracker.php on line 358

I know how to “fix” that, but just FYI for @silavapi and team etc. I guess installing another PHP version resets the configuration to pathetic defaults?

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