PHP Compatibility

composer.json

{
    "require-dev": {
        "phpcompatibility/php-compatibility": "dev-develop"
    },
    "config": {
        "allow-plugins": {
            "dealerdirect/phpcodesniffer-composer-installer": true
        }
    }
}

phpcompatibility.xml

<?xml version="1.0"?>
<ruleset name="PHPCompatibility">

	<rule ref="PHPCompatibility">
		<exclude name="PHPCompatibility.Miscellaneous.RemovedAlternativePHPTags.MaybeASPOpenTagFound"/>
	</rule>

	<config name="testVersion" value="8.3"/>

	<arg name="colors" />

	<arg value="ps" />
	<arg name="basepath" value="."/>
	<arg name="parallel" value="50"/>
	<arg name="extensions" value="php"/>
	<arg name="severity" value="1"/>
	<file>.</file>

	<exclude-pattern>*/vendor/*</exclude-pattern>
</ruleset>