properties-of<T> is a Psalm-only utility typeproperties-of<T> expands to an array shape of the class's properties
(array{name: string, age: int} here). Psalm models it; other analyzers do
not recognize the keyword and either ignore it or report an unknown type.
References:
- Psalm TPropertiesOf (properties-of / public-properties-of ...)| Analyzer | Version | Result | Diagnostics |
|---|---|---|---|
| phan | 6.0.7Phan 6.0.7 php-ast version 1.1.3 PHP version used to run Phan: 8.5.9 | Unrecognized | phpdoc_advanced_psalm_properties_of.php:26: Saw possibly unextractable annotation for a fragment of comment '* @param properties-of<User> $data': after properties, did not see an element name (will guess based on comment order) [PhanUnextractableAnnotationElementName] phpdoc_advanced_psalm_properties_of.php:26: Saw a token Phan may have failed to parse after '* @param properties-of<User> $data': after properties, saw '-' [PhanUnextractableAnnotationSuffix]
|
| phpstan | 2.2.8PHPStan - PHP Static Analysis Tool 2.2.8 | Unrecognized | phpdoc_advanced_psalm_properties_of.php:28: Function Conformance\Tests\PhpdocAdvancedPsalmPropertiesOf\acceptsUserProps() has parameter $data with no value type specified in iterable type array. [identifier=missingType.iterableValue] [reported-from-level=6] phpdoc_advanced_psalm_properties_of.php:28: PHPDoc tag @param for parameter $data contains unresolvable type. [identifier=parameter.unresolvableType] [reported-from-level=2] With strict-rulesphpdoc_advanced_psalm_properties_of.php:28: Function Conformance\Tests\PhpdocAdvancedPsalmPropertiesOf\acceptsUserProps() has parameter $data with no value type specified in iterable type array. [identifier=missingType.iterableValue] phpdoc_advanced_psalm_properties_of.php:28: PHPDoc tag @param for parameter $data contains unresolvable type. [identifier=parameter.unresolvableType]
|
| psalm | 6.16.1Psalm 6.16.1@f1f5de594dc76faf8784e02d3dc4716c91c6f6ac next: 7.0.0-beta19 |
Enforced | phpdoc_advanced_psalm_properties_of.php:36: Argument 1 of Conformance\Tests\PhpdocAdvancedPsalmPropertiesOf\acceptsUserProps expects array{age: int, name: string}, but array{age: 'old', name: 'Ada'} provided [InvalidScalarArgument]
|
| mago | 1.46.0mago 1.46.0 | Enforced | phpdoc_advanced_psalm_properties_of.php:36: Possible argument type mismatch for argument #1 of `Conformance\Tests\PhpdocAdvancedPsalmPropertiesOf\acceptsUserProps`: expected `array{'age': int, 'name': string}`, but possibly received `array{'age': string('old'), 'name': string('Ada')}`. [possibly-invalid-argument]
|
| mir | 0.70.1mir 0.70.1 | Incidental (1/1) | phpdoc_advanced_psalm_properties_of.php:33: InvalidArgument: Argument $data of acceptsUserProps() expects 'Conformance\Tests\PhpdocAdvancedPsalmPropertiesOf\properties-of<Conformance\Tests\PhpdocAdvancedPsalmPropertiesOf\User>', got 'array{'name': "Ada", 'age': 36}' [MIR0201]
phpdoc_advanced_psalm_properties_of.php:36: InvalidArgument: Argument $data of acceptsUserProps() expects 'Conformance\Tests\PhpdocAdvancedPsalmPropertiesOf\properties-of<Conformance\Tests\PhpdocAdvancedPsalmPropertiesOf\User>', got 'array{'name': "Ada", 'age': "old"}' [MIR0201]
Expectation diffLine 33: Expected valid value to be accepted, got ["InvalidArgument: Argument $data of acceptsUserProps() expects 'Conformance\\Tests\\PhpdocAdvancedPsalmPropertiesOf\\properties-of<Conformance\\Tests\\PhpdocAdvancedPsalmPropertiesOf\\User>', got 'array{'name': \"Ada\", 'age': 36}' [MIR0201]"] |
| phpantom | 0.9.0phpantom_lsp 0.9.0 | Not enforced | No diagnostics reported.
|
| intelephense | 1.18.5intelephense 1.18.5 | Not enforced | No diagnostics reported.
|
| phpy | 0.2.0phpy 0.2.0 | Unrecognized | phpdoc_advanced_psalm_properties_of.php:26: Use of unknown class: 'Conformance\Tests\PhpdocAdvancedPsalmPropertiesOf\properties-of'
|
| qodana | 262.8665.325Qodana 262.8665.325 | Unrecognized | phpdoc_advanced_psalm_properties_of.php:26: Argument type does not match the declared [PhpDocSignatureInspection] phpdoc_advanced_psalm_properties_of.php:26: Undefined class 'properties-of' [PhpUndefinedClassInspection]
|
| noverify | 0.5.5NoVerify, version 0.5.5: built on: 2025.04.22 14:36:46 OS: r-kuchinskas arm64 Commit: 4774b82f8adc53fbef38f95e97af4b953b4d1529 | Unrecognized | phpdoc_advanced_psalm_properties_of.php:28: param $data miss matched with phpdoc type <<properties-of<User>>> [funcParamTypeMissMatch]
|
| steins | 0.1.5steins 0.1.5 (2026-08-12 revision 39b4cc1) | Widened to a nonexistent-class reference | No diagnostics reported.
Notes: `properties-of<User>` has no `lower_generic` entry, so it lowers through the catch-all to `ContractTy::Class("properties-of")` — Steins has no fact form for a class's declared property types, so per-key checking against them is unmodeled. |
| phpstan-strict | 2.2.8PHPStan - PHP Static Analysis Tool 2.2.8 | Unrecognized | phpdoc_advanced_psalm_properties_of.php:28: Function Conformance\Tests\PhpdocAdvancedPsalmPropertiesOf\acceptsUserProps() has parameter $data with no value type specified in iterable type array. [identifier=missingType.iterableValue] phpdoc_advanced_psalm_properties_of.php:28: PHPDoc tag @param for parameter $data contains unresolvable type. [identifier=parameter.unresolvableType]
|
| psalm-next | 7.0.0-beta19Psalm 7.0.0-beta19@7e751c06a756fa64dc4c759c09fe4a173afcb433 | Enforced | phpdoc_advanced_psalm_properties_of.php:36: Argument 1 of Conformance\Tests\PhpdocAdvancedPsalmPropertiesOf\acceptsUserProps expects array{age: int, name: string}, but array{age: 'old', name: 'Ada'} provided [InvalidScalarArgument]
|
<?php
declare(strict_types=1);
namespace Conformance\Tests\PhpdocAdvancedPsalmPropertiesOf;
/**
* `properties-of<T>` is a Psalm-only utility type.
*
* `properties-of<T>` expands to an array shape of the class's properties
* (`array{name: string, age: int}` here). Psalm models it; other analyzers do
* not recognize the keyword and either ignore it or report an unknown type.
*
* References:
* - Psalm TPropertiesOf (properties-of / public-properties-of ...)
*/
final class User
{
public string $name = '';
public int $age = 0;
}
/**
* @param properties-of<User> $data
*/
function acceptsUserProps(array $data): void // T: properties-of<User>
{
}
// A shape matching the class properties satisfies the parameter.
acceptsUserProps(['name' => 'Ada', 'age' => 36]); // V
// A shape with a wrong property type is rejected by analyzers that model it.
acceptsUserProps(['name' => 'Ada', 'age' => 'old']); // E?: age must be int in properties-of<User>