psalm.xml

<?xml version="1.0"?>
<psalm
  totallyTyped="false"
  resolveFromConfigFile="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="vendor" />
      <file name="vendor/symfony/polyfill-mbstring/bootstrap80.php" />
    </ignoreFiles>
  </projectFiles>

  <issueHandlers>
    <LessSpecificReturnType errorLevel="info" />

    <!-- level 3 issues - slightly lazy code writing, but provably low false-negatives -->

    <DeprecatedMethod errorLevel="info" />
    <DeprecatedProperty errorLevel="info" />
    <DeprecatedClass errorLevel="info" />
    <DeprecatedConstant errorLevel="info" />
    <DeprecatedFunction errorLevel="info" />
    <DeprecatedInterface errorLevel="info" />
    <DeprecatedTrait errorLevel="info" />

    <InternalMethod errorLevel="info" />
    <InternalProperty errorLevel="info" />
    <InternalClass errorLevel="info" />

    <MissingClosureReturnType errorLevel="info" />
    <MissingReturnType errorLevel="info" />
    <MissingPropertyType errorLevel="info" />
    <InvalidDocblock errorLevel="info" />

    <PropertyNotSetInConstructor errorLevel="info" />
    <MissingConstructor errorLevel="info" />
    <MissingClosureParamType errorLevel="info" />
    <MissingParamType errorLevel="info" />

    <RedundantCondition errorLevel="info" />

    <DocblockTypeContradiction errorLevel="info" />
    <RedundantConditionGivenDocblockType errorLevel="info" />

    <UnresolvableInclude errorLevel="info" />

    <RawObjectIteration errorLevel="info" />

    <InvalidStringClass errorLevel="info" />
    <InvalidArgument errorLevel="info" />
    <ArgumentTypeCoercion errorLevel="info" />

    <!-- level 4 issues - points to possible deficiencies in logic, higher false-positives -->

    <MoreSpecificReturnType errorLevel="info" />
    <LessSpecificReturnStatement errorLevel="info" />

    <PossiblyFalseArgument errorLevel="info" />
    <PossiblyFalseIterator errorLevel="info" />
    <PossiblyFalseOperand errorLevel="info" />
    <PossiblyFalsePropertyAssignmentValue errorLevel="info" />
    <PossiblyFalseReference errorLevel="info" />
    <PossiblyInvalidArgument errorLevel="info" />
    <PossiblyInvalidArrayAccess errorLevel="info" />
    <PossiblyInvalidArrayAssignment errorLevel="info" />
    <PossiblyInvalidArrayOffset errorLevel="info" />
    <PossiblyInvalidCast errorLevel="info" />
    <PossiblyInvalidFunctionCall errorLevel="info" />
    <PossiblyInvalidIterator errorLevel="info" />
    <PossiblyInvalidMethodCall errorLevel="info" />
    <PossiblyInvalidOperand errorLevel="info" />
    <PossiblyInvalidPropertyAssignment errorLevel="info" />
    <PossiblyInvalidPropertyAssignmentValue errorLevel="info" />
    <PossiblyInvalidPropertyFetch errorLevel="info" />
    <PossiblyNullArgument errorLevel="info" />
    <PossiblyNullArrayAccess errorLevel="info" />
    <PossiblyNullArrayAssignment errorLevel="info" />
    <PossiblyNullArrayOffset errorLevel="info" />
    <PossiblyNullFunctionCall errorLevel="info" />
    <PossiblyNullIterator errorLevel="info" />
    <PossiblyNullOperand errorLevel="info" />
    <PossiblyNullPropertyAssignment errorLevel="info" />
    <PossiblyNullPropertyAssignmentValue errorLevel="info" />
    <PossiblyNullPropertyFetch errorLevel="info" />
    <PossiblyNullReference errorLevel="info" />
    <PossiblyUndefinedGlobalVariable errorLevel="info" />
    <PossiblyUndefinedVariable errorLevel="info" />
    <PossiblyUndefinedArrayOffset errorLevel="info" />
    <PossiblyUndefinedMethod errorLevel="info" />
    <PossibleRawObjectIteration errorLevel="info" />

    <!-- level 6 issues - really bad things -->

    <InvalidReturnStatement errorLevel="info" />
    <UndefinedInterfaceMethod errorLevel="info" />

    <!-- level 8 issues - some fatal errors in PHP -->

    <MethodSignatureMismatch errorLevel="info" />

  </issueHandlers>
</psalm>