PHP 8.4

[TheSpiralMom]

I just tried updating my PHP to 8.4, but the theme doesn’t seem to support PHP over 7.4. Help

[Weaver]

Weaver Xtreme Version 6.7 (also lower quite a few versions back) is completely compatible with any PHP Version 7 or 8. While this forum site is on 8.2 because of hosting support, my test platform is PHP 8.4 with no issues. Perhaps there is some plugin that has an issue. PHP has remained quite backward compatible for quite a few versions.

WP is also fairly backwards compatible:

“WordPress also works with PHP 7.2.24+” although WP warns that if you’re running something that old, there may be vulnerabilities.

 

[User]

@thespiralmom

For what its worth, I’ve just had 2 plugins updated in the last 2 days, saying they are now PHP 8.4 compliant.

As Weaver suggested, you may want to check that all your plugins are PHP 8.4 capable.

Regards.

[TheSpiralMom]

According to tech support from my server, it’s a theme issue

<b>Fatal error</b>: Uncaught ValueError: Unknown format specifier “C” in /home/cognclc/www/www/wp-includes/nav-menu-template.php:290 Stack trace: #0 /home/cognclc/www/www/wp-includes/nav-menu-template.php(290): sprintf(‘apply_filters(”, Array) #8 /home/cognclc/www/www/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #9 /home/cognclc/www/www/wp-content/themes/weaver-xtreme/header.php(116): do_action(‘weaverx_nav’, ‘top’) #10 /home/cognclc/www/www/wp-includes/template.php(810): require_once(‘/home/cognclc/w…’) #11 /home/cognclc/www/www/wp-includes/template.php(745): load_template(‘/home/cognclc/w…’, true, Array) #12 /home/cognclc/www/www/wp-includes/general-template.php(48): locate_template(Array, true, true, Array) #13 /home/cognclc/www/www/wp-content/themes/weaver-xtreme/includes/lib-layout.php(436): get_header(‘page’) #14 /home/cognclc/www/www/wp-content/themes/weaver-xtreme/page.php(11): weaverx_page_lead(‘page’) #15 /home/cognclc/www/www/wp-includes/template-loader.php(106): include(‘/home/cognclc/w…’) #16 /home/cognclc/www/www/wp-blog-header.php(19): require_once(‘/home/cognclc/w…’) #17 /home/cognclc/www/www/index.php(17): require(‘/home/cognclc/w…’) #18 {main} thrown in <b>/home/cognclc/www/www/wp-includes/nav-menu-template.php</b> on line <b>290</b>

[User]

@Weaver would need to comment further on this.

@thespiralmom my own naive thoughts on this is the “www” x2  in all your settings:  cognclc/www/www/wp-includes.....

That looks rather non-standard to me, and in my experience, non-standard code tends to have the habit of throwing out unexpected errors here or there.

Regards.

[Weaver]

I agree. /www/www is not anything one would expect, and would of course cause errors. If there really were a PHP 8 error, we would be hearing a lot about it, and that is not the case.

 

[TheSpiralMom]

I’m confused, as I didn’t do any coding. Please note, I’m a novice.

Are you saying that it’s a problem with the directories?

[User]

@TheSpiralMom

At the moment, fron what we see and understand, there are no reported issues with Weaver Xtrene and PHP8.4

On the other hand, you are experiencing problems.

Based on the information you supplied, the ‘/www/www/’ is of concern as it is abnormal.

It appears that your WordPress or Site installation has been placed inside a directory called ‘WWW’…

That’s not a normal install and so we suspect it is the reason for the apparent PHP8.4 conflict.

Please see if you can resolve this abnormal install, so that the ‘/www/www/’ paths no longer exist.

Regards.

[TheSpiralMom]

This reply has been accepted as the best answer.

I created a staging area and tested each plugin. Turns out it was the JetPack plugin, not the theme. Yay!

Thannk you everyone for your help

[Weaver]

Very odd that JetPack could have any issues with PHP version as it is a significant WP product.

[roadside]

I’m running into the same issue.  If I deactivate JetPack (with Weaver Xtreme 6.7 activated)  I can upgrade to PHP 8.4 and it works.

If I deactivate Weaver Xtreme and keep JetPack on, PHP 8.4 works as well.  But if both JetPack and Weaver Xtreme are activated I get an error.

And I’m not running into this problem on another site I run with a different theme.  8.4 works fine there.

The debug log shows theme errors.  I don’t have that doubled http://www.www thing like above.

[26-Aug-2025 20:51:22 UTC] PHP Fatal error: Uncaught ValueError: Unknown format specifier “C” in /home/roadsid5/public_html/wp-includes/nav-menu-template.php:290
Stack trace:
#0 /home/roadsid5/public_html/wp-includes/nav-menu-template.php(290): sprintf()
#1 /home/roadsid5/public_html/wp-content/themes/weaver-xtreme/templates/menu-primary.php(162): wp_nav_menu()
#2 /home/roadsid5/public_html/wp-includes/template.php(812): require(‘/home/roadsid5/…’)
#3 /home/roadsid5/public_html/wp-includes/template.php(745): load_template()
#4 /home/roadsid5/public_html/wp-includes/general-template.php(206): locate_template()
#5 /home/roadsid5/public_html/wp-content/themes/weaver-xtreme/includes/filters.php(72): get_template_part()
#6 /home/roadsid5/public_html/wp-includes/class-wp-hook.php(324): weaverx_nav_action()
#7 /home/roadsid5/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()
#8 /home/roadsid5/public_html/wp-includes/plugin.php(517): WP_Hook->do_action()
#9 /home/roadsid5/public_html/wp-content/themes/weaver-xtreme/header.php(147): do_action()
#10 /home/roadsid5/public_html/wp-includes/template.php(810): require_once(‘/home/roadsid5/…’)
#11 /home/roadsid5/public_html/wp-includes/template.php(745): load_template()
#12 /home/roadsid5/public_html/wp-includes/general-template.php(48): locate_template()
#13 /home/roadsid5/public_html/wp-content/themes/weaver-xtreme/includes/lib-layout.php(436): get_header()
#14 /home/roadsid5/public_html/wp-content/themes/weaver-xtreme/404.php(18): weaverx_page_lead()
#15 /home/roadsid5/public_html/wp-includes/template-loader.php(106): include(‘/home/roadsid5/…’)
#16 /home/roadsid5/public_html/wp-blog-header.php(19): require_once(‘/home/roadsid5/…’)
#17 /home/roadsid5/public_html/index.php(17): require(‘/home/roadsid5/…’)
#18 {main}
thrown in /home/roadsid5/public_html/wp-includes/nav-menu-template.php on line 290

[User]

@Roadside

Thanks for the information.

May I ask you to please submit a copy of “Your System and Configuration Info”  from the Weaver Xtreme 6.7 Options page?

This may help in the testing and understanding of what’s going on.

You may like to set your reply to  Private Reply for your own privacy.

Regards and thanks!

 

[roadside]

This reply has been marked as private.

[Weaver]

The trace you provided seems to show that the error is happening on a 404 page – page does not exist. Do you get the errors on any page, or just an unknown page?

I visited your link, and don’t see issues. Do you have JetPack on or off at the moment?

[roadside]

This reply has been marked as private.

[Weaver]

i can see to test this on your server, one would need full access to your host account to switch PHP versions, plus admin access to your site.

This seems to be a very hard issue. I simply have not been able to create any issues using PHP 8.4 with Weaver and Jetpack. I have created a test site with that configuration, but there is no issue. I can see your site has an issue before the menu is generated.

I could try to have a look, but obviously it would take messing with your site. But before we go there, could you generate a alt site called something like test.oldsite.com that is a clone of the original site. Don’t know if your host allows changing PHP version on a per site basis or not. If that were possible, then one could leave your real site on 7.4, and experiment with the clone using PHP 8..6. I would be willing to try to play with it, although I will be unavailable for the next week or so (except perhaps brief discussions here.)

I’m setting my replies to private since this really isn’t of general interest.

[Author]

Posts