Add php cs fixer and some rule sets.

.ci/php-cs-fixer/.gitignore

@@ -0,0 +1 @@
+vendor

.ci/php-cs-fixer/.php-cs-fixer.php

@@ -0,0 +1,31 @@
+<?php
+/*
+ * .php-cs-fixer.php
+ * Copyright (c) 2022 james@firefly-iii.org
+ *
+ * This file is part of Firefly III (https://github.com/firefly-iii).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+$finder = PhpCsFixer\Finder::create();
+
+$config = new PhpCsFixer\Config();
+return $config->setRules([
+    '@PSR12' => true,
+    'strict_param' => true,
+    'array_syntax' => ['syntax' => 'short'],
+])
+              ->setFinder($finder)
+    ;

.ci/php-cs-fixer/composer.json

@@ -0,0 +1,5 @@
+{
+    "require": {
+        "friendsofphp/php-cs-fixer": "^3.12"
+    }
+}

.ci/phpstan.sh

@@ -23,9 +23,17 @@
 # Install composer packages
 #composer install --no-scripts --no-ansi
 
+SCRIPT_DIR="$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )"
+
 # enable test .env file.
 # cp .ci/.env.ci .env
 
+# clean up php code
+cd $SCRIPT_DIR/php-cs-fixer
+composer update
+./vendor/bin/php-cs-fixer fix $SCRIPT_DIR/../app/Console --config $SCRIPT_DIR/php-cs-fixer/.php-cs-fixer.php --allow-risky=yes
+cd $SCRIPT_DIR/..
+
 # Do static code analysis.
 # ./vendor/bin/phpstan analyse -c .ci/phpstan.neon --no-progress
 ./vendor/bin/phpstan analyse -c .ci/phpstan.neon

.gitignore

@@ -6,3 +6,4 @@
 npm-debug.log
 yarn-error.log
 .env
+.php-cs-fixer.cache