php: Upgrade from PHP 7.4 to 8.0 as default PHP

nixos/doc/manual/from_md/release-notes/rl-2111.section.xml

···
     <itemizedlist spacing="compact">
       <listitem>
         <para>
-          PHP now defaults to PHP 8.0, updated from 7.4
+          PHP now defaults to PHP 8.0, updated from 7.4.
         </para>
       </listitem>
     </itemizedlist>

nixos/doc/manual/release-notes/rl-2111.section.md

···
 
 ## Highlights
 
+* PHP now defaults to PHP 8.0, updated from 7.4.
+
 ## New Services
 
 * [geoipupdate](https://github.com/maxmind/geoipupdate), a GeoIP

pkgs/applications/misc/rss-bridge-cli/default.nix

···
       curl
       filter
       iconv
-      json
       mbstring
       openssl
       simplexml

pkgs/development/php-packages/couchbase/default.nix

···
   };
 
   configureFlags = [ "--with-couchbase" ];
-  broken = lib.versionAtLeast php.version "8.0";
 
   buildInputs = [ libcouchbase zlib ];
   internalDeps = lib.optionals (lib.versionOlder php.version "8.0") [ php.extensions.json ];
···
     '')
   ];
 
+  meta.broken = lib.versionAtLeast php.version "8.0";
   meta.maintainers = lib.teams.php.members;
 }

pkgs/development/php-packages/php_excel/default.nix

···
-{ buildPecl, fetchurl, lib, libxl }:
+{ buildPecl, fetchurl, lib, libxl, php }:
 let
   pname = "php_excel";
   phpVersion = "php7";
···
     "--with-libxl-libdir=${libxl}/lib"
   ];
 
+  meta.broken = lib.versionAtLeast php.version "8.0";
   meta.maintainers = lib.teams.php.members;
 }

pkgs/top-level/all-packages.nix

···
   }) arangodb_3_3 arangodb_3_4 arangodb_3_5;
   arangodb = arangodb_3_4;
 
-  arcanist = callPackage ../development/tools/misc/arcanist {};
+  arcanist = callPackage ../development/tools/misc/arcanist { php = php74; };
 
   arduino = arduino-core.override { withGui = true; };
 
···
   # PHP interpreters, packages and extensions.
   #
   # Set default PHP interpreter, extensions and packages
-  php = php74;
+  php = php80;
   phpExtensions = php.extensions;
   phpPackages = php.packages;
 
···
 
   dspam = callPackage ../servers/mail/dspam { };
 
-  engelsystem = callPackage ../servers/web-apps/engelsystem { };
+  engelsystem = callPackage ../servers/web-apps/engelsystem { php = php74; };
 
   envoy = callPackage ../servers/http/envoy { };
 
···
 
   lrzsz = callPackage ../tools/misc/lrzsz { };
 
-  lsp-plugins = callPackage ../applications/audio/lsp-plugins { };
+  lsp-plugins = callPackage ../applications/audio/lsp-plugins { php = php74; };
 
   luminanceHDR = libsForQt5.callPackage ../applications/graphics/luminance-hdr { };