Merge branch '3.4.x' into 3.5.x

* 3.4.x:
  Add static analysis files to .gitattributes
  [Doc] Fix a minor doc syntax issue
  Add a note that object references only work for Entities
  Add code example for purge exclusion (#389)

.gitattributes

@@ -4,3 +4,7 @@
 /Tests export-ignore
 /phpcs.xml.dist export-ignore
 /phpunit.xml.dist export-ignore
+/phpstan.neon.dist export-ignore
+/phpstan-baseline.neon export-ignore
+/psalm.xml export-ignore
+/psalm-baseline.xml export-ignore

Resources/doc/index.rst

@@ -152,7 +152,11 @@ Sharing Objects between Fixtures
 When using multiple fixtures files, you can reuse PHP objects across different
 files thanks to the **object references**. Use the ``addReference()`` method to
 give a name to any object and then, use the ``getReference()`` method to get the
-exact same object via its name:
+exact same object via its name.
+
+.. note::
+
+    Adding object references only works for ORM entities or ODM documents.
 
 .. code-block:: php
 
@@ -302,7 +306,11 @@ By default all previously existing data is purged using ``DELETE FROM table`` st
 
 If you want to exclude a set of tables from being purged, e.g. because your schema comes with pre-populated,
 semi-static data, pass the option ``--purge-exclusions``. Specify ``--purge-exclusions`` multiple times to exclude
-multiple tables.
+multiple tables:
+
+.. code-block:: terminal
+
+    $ php bin/console doctrine:fixtures:load --purge-exclusions=post_category --purge-exclusions=comment_type
 
 You can also customize purging behavior significantly more and implement a custom purger plus a custom purger factory::
 
@@ -421,6 +429,6 @@ Then, enable Dependency Injection for the ``fixtures`` directory:
 .. caution::
 
     This will not override the default ``src/DataFixtures`` directory when creating fixtures with the
-    `Symfony MakerBundle` (``make:fixtures``).
+    `Symfony MakerBundle`_ (``make:fixtures``).
 
 .. _`Symfony MakerBundle`: https://symfony.com/bundles/SymfonyMakerBundle/current/index.html