I have copied a mediawiki 1.33.1 from a server to another.
The original is working fine here : https://gestinux.net
I know that I must upgrade, but first I have to move it without changes to another server able to run a supported php version.
I have made myself a small extension using an hook.
On the new site https://test.gestinux.net I get this error, with the same code in the extension :
[X-767HO9Cu8SMC0GF1o@bgAAACM] /mediawiki/index.php?title=Main_Page MWException from line 164 of [path]/mediawiki/includes/Hooks.php: Invalid callback LanguageLinksHook::onOutputPageBeforeHTML in hooks for OutputPageBeforeHTML
With stack ending with :
#0 [path]/mediawiki/includes/Hooks.php(234): Hooks::callHook(string, array, array, NULL, string)
Even if the hook does nothing, I have the same error :
public static function onOutputPageBeforeHTML( OutputPage &$out, &$text )
Where can be the problem ? I'm stuck !
I'm running php 7.2 and warnings are enabled on the test site.