.phpcs.xml

<?xml version="1.0"?>
<ruleset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="PSL"
         xsi:noNamespaceSchemaLocation="vendor/squizlabs/php_codesniffer/phpcs.xsd">
    <description>The coding standard for PHP Standard Library.</description>

    <file>src</file>

    <arg name="basepath" value="."/>
    <arg name="colors"/>
    <arg name="parallel" value="75"/>

    <rule ref="PSR1">
        <type>error</type>
    </rule>

    <rule ref="PSR2">
        <type>error</type>
    </rule>

    <rule ref="PSR12">
        <type>error</type>
    </rule>

    <!-- Don't hide tokenizer exceptions -->
    <rule ref="Internal.Tokenizer.Exception">
        <type>error</type>
    </rule>

    <!-- Ban some functions -->
    <rule ref="Generic.PHP.ForbiddenFunctions">
        <properties>
            <property name="forbiddenFunctions" type="array">
                <element key="sizeof" value="count"/>
                <element key="delete" value="unset"/>
                <element key="print" value="echo"/>
                <element key="is_null" value="null"/>
                <element key="create_function" value="null"/>
                <element key="assert" value="Psl\invariant"/>
            </property>
        </properties>
    </rule>
</ruleset>