diff --git a/nixos/tests/php/default.nix b/nixos/tests/php/default.nix
index 6ecaed24604..cf78c9db53b 100644
--- a/nixos/tests/php/default.nix
+++ b/nixos/tests/php/default.nix
@@ -2,8 +2,14 @@
 , config ? {}
 , pkgs ? import ../../.. { inherit system config; }
 , php ? pkgs.php
-}: {
-  fpm = import ./fpm.nix { inherit system pkgs php; };
-  httpd = import ./httpd.nix { inherit system pkgs php; };
-  pcre = import ./pcre.nix { inherit system pkgs php; };
+}:
+
+let
+  php' = php.buildEnv {
+    extensions = { enabled, all }: with all; enabled ++ [ apcu ];
+  };
+in {
+  fpm = import ./fpm.nix { inherit system pkgs; php = php'; };
+  httpd = import ./httpd.nix { inherit system pkgs; php = php'; };
+  pcre = import ./pcre.nix { inherit system pkgs; php = php'; };
 }
diff --git a/nixos/tests/php/fpm.nix b/nixos/tests/php/fpm.nix
index 02ea5179474..b11f85d39cb 100644
--- a/nixos/tests/php/fpm.nix
+++ b/nixos/tests/php/fpm.nix
@@ -3,6 +3,8 @@ import ../make-test-python.nix ({pkgs, lib, php, ...}: {
   meta.maintainers = lib.teams.php.members;
 
   machine = { config, lib, pkgs, ... }: {
+    environment.systemPackages = [ php ];
+
     services.nginx = {
       enable = true;
 
@@ -48,7 +50,8 @@ import ../make-test-python.nix ({pkgs, lib, php, ...}: {
     assert "PHP Version ${php.version}" in response, "PHP version not detected"
 
     # Check so we have database and some other extensions loaded
-    for ext in ["json", "opcache", "pdo_mysql", "pdo_pgsql", "pdo_sqlite"]:
+    for ext in ["json", "opcache", "pdo_mysql", "pdo_pgsql", "pdo_sqlite", "apcu"]:
         assert ext in response, f"Missing {ext} extension"
+        machine.succeed(f'test -n "$(php -m | grep -i {ext})"')
   '';
 })
diff --git a/pkgs/build-support/build-pecl.nix b/pkgs/build-support/build-pecl.nix
index bc905ee84a0..d75d3cf943a 100644
--- a/pkgs/build-support/build-pecl.nix
+++ b/pkgs/build-support/build-pecl.nix
@@ -16,10 +16,10 @@
 }@args:
 
 stdenv.mkDerivation (args // {
-  pname = "php-${php.version}-${pname}";
+  name = "php-${pname}-${version}";
   extensionName = pname;
 
-  inherit version src;
+  inherit src;
 
   nativeBuildInputs = [ autoreconfHook re2c ] ++ nativeBuildInputs;
   buildInputs = [ php ] ++ peclDeps ++ buildInputs;
diff --git a/pkgs/top-level/php-packages.nix b/pkgs/top-level/php-packages.nix
index 3c8738565f6..c9c4414f2fb 100644
--- a/pkgs/top-level/php-packages.nix
+++ b/pkgs/top-level/php-packages.nix
@@ -16,7 +16,7 @@ lib.makeScope pkgs.newScope (self: with self; {
   # Wrap mkDerivation to prepend pname with "php-" to make names consistent
   # with how buildPecl does it and make the file easier to overview.
   mkDerivation = { pname, ... }@args: pkgs.stdenv.mkDerivation (args // {
-    pname = "php-${php.version}-${pname}";
+    pname = "php-${pname}";
   });
 
   pcre' = if (lib.versionAtLeast php.version "7.3") then pcre2 else pcre;