psalm.xml

<?xml version="1.0"?>
<psalm
    cacheDirectory="./.psalm/cache"
    useDocblockPropertyTypes="true"
    usePhpDocMethodsWithoutMagicCall="true"
    strictBinaryOperands="true"
    ignoreInternalFunctionFalseReturn="false"
    ignoreInternalFunctionNullReturn="false"
    findUnusedCode="true"
    findUnusedBaselineEntry="true"
    hideExternalErrors="true"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="https://getpsalm.org/schema/config"
    xsi:schemaLocation="https://getpsalm.org/schema/config vendor/vimeo/psalm/config.xsd"
>
    <projectFiles>
        <directory name="src"/>

        <ignoreFiles>
            <directory name=".development"/>
        </ignoreFiles>
    </projectFiles>

    <extraFiles>
        <directory name="vendor/roots/wordpress-no-content"/>
    </extraFiles>

    <!-- https://github.com/vimeo/psalm/issues/5791 -->
    <!-- Do not stub noop.php -->
    <stubs>
        <file name="vendor/roots/wordpress-no-content/wp-includes/l10n.php"/>
        <file name="vendor/roots/wordpress-no-content/wp-includes/theme.php"/>
        <file name="vendor/roots/wordpress-no-content/wp-includes/formatting.php"/>
        <file name="vendor/roots/wordpress-no-content/wp-includes/kses.php"/>
    </stubs>

    <issueHandlers>
        <MissingClosureParamType errorLevel="suppress"/>
        <MissingClosureReturnType errorLevel="suppress"/>
        <UnresolvableInclude errorLevel="suppress"/>
        <UndefinedConstant errorLevel="suppress"/>
        <ParamNameMismatch errorLevel="suppress"/>
        <UnnecessaryVarAnnotation errorLevel="suppress"/>
    </issueHandlers>
</psalm>