<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
  <component name="PhpProjectSharedConfiguration" php_language_level="7.1" />
  <component name="PhpUnit">
    <phpunit_settings>
      <PhpUnitSettings />
    </phpunit_settings>
  </component>
</project>
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
  <component name="PhpProjectSharedConfiguration" php_language_level="5.3.0" />
  <component name="PhpUnit">
    <phpunit_settings>
      <PhpUnitSettings />
    </phpunit_settings>
  </component>
</project>
Decrease PhpStorm project to lower version
Decrease PhpStorm project to lower version

To align more closely with server PHP version
