Added action to check style

.github/workflows/lint.yml

@@ -0,0 +1,12 @@
+on: [push, pull_request]
+name: Main
+jobs:
+    php-cs-fixer:
+        name: PHP-CS-Fixer
+        runs-on: ubuntu-latest
+        steps:
+            - uses: actions/checkout@v2
+            - name: PHP-CS-Fixer
+              uses: docker://oskarstark/php-cs-fixer-ga
+              with:
+                  args: --config=./web/.php_cs --diff --dry-run

web/.gitignore

@@ -0,0 +1,2 @@
+.idea
+.php_cs.cache

web/.php_cs

@@ -0,0 +1,17 @@
+<?php
+
+$finder = PhpCsFixer\Finder::create()
+	->exclude('vendor')
+	->in(__DIR__)
+;
+
+return PhpCsFixer\Config::create()
+	->setIndent("\t")
+	->setRules([
+		'braces'=>[
+			'position_after_functions_and_oop_constructs'=>'same'
+		],
+		'elseif' => true
+	])
+	->setFinder($finder)
+	;