php80: fix on darwin

pkgs/top-level/php-packages.nix

@@ -399,7 +399,7 @@ lib.makeScope pkgs.newScope (self: with self; {
       # oci8 (7.4, 7.3, 7.2)
       # odbc (7.4, 7.3, 7.2)
       { name = "opcache";
-        buildInputs = [ pcre' ] ++ lib.optionals (lib.versionAtLeast php.version "8.0") [
+        buildInputs = [ pcre' ] ++ lib.optionals (!stdenv.isDarwin && lib.versionAtLeast php.version "8.0") [
           valgrind.dev
         ];
         patches = lib.optionals (lib.versionOlder php.version "7.4") [
@@ -419,7 +419,9 @@ lib.makeScope pkgs.newScope (self: with self; {
              #include "zend_accelerator_util_funcs.h"
           '') ];
         zendExtension = true;
-        doCheck = !(lib.versionOlder php.version "7.4"); }
+        doCheck = !(lib.versionOlder php.version "7.4");
+        # Tests launch the builtin webserver.
+        __darwinAllowLocalNetworking = true; }
       { name = "openssl";
         buildInputs = [ openssl ];
         configureFlags = [ "--with-openssl" ];