Add call_user_func_array() backward incompatible change

Closes GH-6218.

[ci skip]

diff --git a/UPGRADING b/UPGRADING
index 26ecac9d94e42200699ad54f17ab1f57f16a960d..e77c98d61697f410cfbd11c4928666bcb83f88b2 100644 (file)
--- a/UPGRADING
+++ b/UPGRADING
@@ -254,6 +254,8 @@ PHP 8.0 UPGRADE NOTES
       __wakeup(): void
 
     RFC: https://wiki.php.net/rfc/magic-methods-signature
+  . call_user_func_array() array keys will now be interpreted as parameter names,
+    instead of being silently ignored.
 
 - COM:
   . Removed the ability to import case-insensitive constants from type