diff --git a/.phpcs.xml b/.phpcs.xml
new file mode 100644
index 00000000..d1457875
--- /dev/null
+++ b/.phpcs.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0"?>
+<ruleset>
+    <description>Engelsystem PHP coding standard</description>
+
+    <file>config</file>
+    <file>db</file>
+    <file>public/index.php</file>
+    <file>src</file>
+    <file>tests</file>
+
+    <rule ref="PSR12" />
+</ruleset>