phpcs.xml

<?xml version="1.0"?>
<ruleset name="PSR12-laravel-composer">
 <description>The PSR12 standard, but ignore something for laravel.</description>
 <!-- use preg_match https://github.com/squizlabs/PHP_CodeSniffer/issues/742#issuecomment-215250517 -->
 <exclude-pattern>/vendor/</exclude-pattern>
 <exclude-pattern>*\.js</exclude-pattern>
 <exclude-pattern>*\.css</exclude-pattern>

 <!-- Include the whole PSR12 standard -->
 <rule ref="PSR12"/>

 <!-- ignore ERROR: Each class must be in a namespace of at least one level (a top-level vendor name) -->
 <rule ref="PSR1.Classes.ClassDeclaration.MissingNamespace">
  <exclude-pattern>/src/database/migrations/</exclude-pattern>
 </rule>

</ruleset>