Updating PHPCS ruleset to match a better style guideline (tab width of 2 and same-line opening braces)

phpcs.xml

@@ -11,7 +11,25 @@
     <arg name="colors"/>
 
     <!-- Set standard coding standard (PSR-12) -->
-    <rule ref="PSR12"/>
+    <rule ref="PSR12">
+        <!-- Disable PSR-12 rules forcing opening braces onto a new line -->
+        <exclude name="PSR2.Classes.ClassDeclaration.OpenBraceNewLine"/>
+        <exclude name="PSR12.Classes.OpeningBraceSpace.Found"/>
+        <exclude name="Squiz.Functions.MultiLineFunctionDeclaration.BraceOnNewLine"/>
+        <exclude name="Generic.Files.LineLength"/>
+    </rule>
+
+    <!-- Require opening braces to be on the same line (1TBS / K&R style) -->
+    <rule ref="Generic.Classes.OpeningBraceSameLine"/>
+    <rule ref="Generic.Functions.OpeningFunctionBraceKernighanRitchie"/>
+
+    <!-- Enforce 2-space indentation instead of 4 -->
+    <rule ref="Generic.WhiteSpace.ScopeIndent">
+        <properties>
+            <property name="indent" value="2"/>
+            <property name="exact" value="true"/>
+        </properties>
+    </rule>
 
     <!-- Exclude third-party vendor files and node_modules -->
     <exclude-pattern>*/vendor/*</exclude-pattern>