value-of<T> with a class-constant operandkey-of case: the operand names a class
constant, and the type is the union of that array's values, 1|10. The
probe sits *between* the two members — 5 is an int like both of them, so
a tool that resolves the constant but widens the values to int accepts it,
and only a tool that keeps the literal union rejects it.
References:
- PHPStan phpdoc-types: value-of with constant operands
- Psalm utility_types.md: value-of on class constants| 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_fallback_value_of_constant.php:27: Saw a token Phan may have failed to parse after '* @return value-of<Levels::MAP>': after value-of, saw '<' [PhanUnextractableAnnotationSuffix] phpdoc_advanced_fallback_value_of_constant.php:39: Saw possibly unextractable annotation for a fragment of comment '* @param value-of<Levels::MAP> $value': after value-of, did not see an element name (will guess based on comment order) [PhanUnextractableAnnotationElementName] phpdoc_advanced_fallback_value_of_constant.php:39: Saw a token Phan may have failed to parse after '* @param value-of<Levels::MAP> $value': after value-of, saw '<' [PhanUnextractableAnnotationSuffix]
|
| phpstan | 2.2.8PHPStan - PHP Static Analysis Tool 2.2.8 | Enforced reported Lv.5+ | phpdoc_advanced_fallback_value_of_constant.php:54: Parameter #1 $value of function Conformance\Tests\PhpdocAdvancedFallbackValueOfConstant\acceptsLevel expects 1|10, 5 given. [identifier=argument.type] [reported-from-level=5] phpdoc_advanced_fallback_value_of_constant.php:57: Parameter #1 $value of function Conformance\Tests\PhpdocAdvancedFallbackValueOfConstant\acceptsLevel expects 1|10, 'low' given. [identifier=argument.type] [reported-from-level=5] With strict-rulesphpdoc_advanced_fallback_value_of_constant.php:54: Parameter #1 $value of function Conformance\Tests\PhpdocAdvancedFallbackValueOfConstant\acceptsLevel expects 1|10, 5 given. [identifier=argument.type] phpdoc_advanced_fallback_value_of_constant.php:57: Parameter #1 $value of function Conformance\Tests\PhpdocAdvancedFallbackValueOfConstant\acceptsLevel expects 1|10, 'low' given. [identifier=argument.type]
|
| psalm | 6.16.1Psalm 6.16.1@f1f5de594dc76faf8784e02d3dc4716c91c6f6ac next: 7.0.0-beta19 |
Enforced | phpdoc_advanced_fallback_value_of_constant.php:54: Argument 1 of Conformance\Tests\PhpdocAdvancedFallbackValueOfConstant\acceptsLevel expects 1|10, but 5 provided [InvalidArgument] phpdoc_advanced_fallback_value_of_constant.php:57: Argument 1 of Conformance\Tests\PhpdocAdvancedFallbackValueOfConstant\acceptsLevel expects 1|10, but 'low' provided [InvalidArgument]
|
| mago | 1.46.0mago 1.46.0 | Enforced | phpdoc_advanced_fallback_value_of_constant.php:54: Invalid argument type for argument #1 of `Conformance\Tests\PhpdocAdvancedFallbackValueOfConstant\acceptsLevel`: expected `int(1)|int(10)`, but found `int(5)`. [invalid-argument]
phpdoc_advanced_fallback_value_of_constant.php:57: Invalid argument type for argument #1 of `Conformance\Tests\PhpdocAdvancedFallbackValueOfConstant\acceptsLevel`: expected `int(1)|int(10)`, but found `string('low')`. [invalid-argument]
|
| mir | 0.70.1mir 0.70.1 | Not enforced | No diagnostics reported.
|
| phpantom | 0.9.0phpantom_lsp 0.9.0 | Incidental (2/2) | phpdoc_advanced_fallback_value_of_constant.php:31: Return type int is incompatible with declared return type value-of<Levels::MAP> [type_mismatch_return] phpdoc_advanced_fallback_value_of_constant.php:46: Argument 1 ($value) expects int, got value-of<Levels::MAP> [type_mismatch_argument] phpdoc_advanced_fallback_value_of_constant.php:49: Argument 1 ($value) expects value-of<Levels::MAP>, got 1 [type_mismatch_argument] phpdoc_advanced_fallback_value_of_constant.php:50: Argument 1 ($value) expects value-of<Levels::MAP>, got 10 [type_mismatch_argument] phpdoc_advanced_fallback_value_of_constant.php:54: Argument 1 ($value) expects value-of<Levels::MAP>, got 5 [type_mismatch_argument] phpdoc_advanced_fallback_value_of_constant.php:57: Argument 1 ($value) expects value-of<Levels::MAP>, got 'low' [type_mismatch_argument]
Expectation diffLine 31: Expected valid value to be accepted, got ["Return type int is incompatible with declared return type value-of<Levels::MAP> [type_mismatch_return]"] Line 46: Expected valid value to be accepted, got ["Argument 1 ($value) expects int, got value-of<Levels::MAP> [type_mismatch_argument]"] Line 49: Expected valid value to be accepted, got ["Argument 1 ($value) expects value-of<Levels::MAP>, got 1 [type_mismatch_argument]"] Line 50: Expected valid value to be accepted, got ["Argument 1 ($value) expects value-of<Levels::MAP>, got 10 [type_mismatch_argument]"] |
| intelephense | 1.18.5intelephense 1.18.5 | Not enforced | No diagnostics reported.
|
| phpy | 0.2.0phpy 0.2.0 | Not enforced | No diagnostics reported.
|
| qodana | 262.8665.325Qodana 262.8665.325 | Unrecognized | phpdoc_advanced_fallback_value_of_constant.php:27: Return type in PHPDoc does not match the actual return type [PhpReturnDocTypeMismatchInspection]
|
| noverify | 0.5.5NoVerify, version 0.5.5: built on: 2025.04.22 14:36:46 OS: r-kuchinskas arm64 Commit: 4774b82f8adc53fbef38f95e97af4b953b4d1529 | Not enforced | No diagnostics reported.
|
| steins | 0.1.5steins 0.1.5 (2026-08-12 revision 39b4cc1) | Enforced | phpdoc_advanced_fallback_value_of_constant.php:54: argument 5 to acceptsLevel() violates declared @param value-of<Levels::MAP> $value — declared contract violation [phpdoc.param-mismatch] phpdoc_advanced_fallback_value_of_constant.php:57: argument "low" to acceptsLevel() violates declared @param value-of<Levels::MAP> $value — declared contract violation [phpdoc.param-mismatch]
|
| phpstan-strict | 2.2.8PHPStan - PHP Static Analysis Tool 2.2.8 | Enforced | phpdoc_advanced_fallback_value_of_constant.php:54: Parameter #1 $value of function Conformance\Tests\PhpdocAdvancedFallbackValueOfConstant\acceptsLevel expects 1|10, 5 given. [identifier=argument.type] phpdoc_advanced_fallback_value_of_constant.php:57: Parameter #1 $value of function Conformance\Tests\PhpdocAdvancedFallbackValueOfConstant\acceptsLevel expects 1|10, 'low' given. [identifier=argument.type]
|
| psalm-next | 7.0.0-beta19Psalm 7.0.0-beta19@7e751c06a756fa64dc4c759c09fe4a173afcb433 | Enforced | phpdoc_advanced_fallback_value_of_constant.php:54: Argument 1 of Conformance\Tests\PhpdocAdvancedFallbackValueOfConstant\acceptsLevel expects 1|10, but 5 provided [InvalidArgument] phpdoc_advanced_fallback_value_of_constant.php:57: Argument 1 of Conformance\Tests\PhpdocAdvancedFallbackValueOfConstant\acceptsLevel expects 1|10, but 'low' provided [InvalidArgument]
|
<?php
declare(strict_types=1);
namespace Conformance\Tests\PhpdocAdvancedFallbackValueOfConstant;
/**
* `value-of<T>` with a class-constant operand
*
* The mirror of the constant-operand `key-of` case: the operand names a class
* constant, and the type is the union of that array's values, `1|10`. The
* probe sits *between* the two members — `5` is an int like both of them, so
* a tool that resolves the constant but widens the values to `int` accepts it,
* and only a tool that keeps the literal union rejects it.
*
* References:
* - PHPStan phpdoc-types: value-of with constant operands
* - Psalm utility_types.md: value-of on class constants
*/
final class Levels
{
public const MAP = ['low' => 1, 'high' => 10];
}
/**
* @return value-of<Levels::MAP>
*/
function returnsLevel() // T: value-of<Levels::MAP>
{
return \random_int(0, 1) === 1 ? 1 : 10; // V
}
function acceptsInt(int $value): void
{
}
/**
* @param value-of<Levels::MAP> $value
*/
function acceptsLevel($value): void // T: value-of<Levels::MAP>
{
}
// Every value of the constant is an int.
acceptsInt(returnsLevel()); // V
// Both values of the constant satisfy the parameter.
acceptsLevel(1); // V
acceptsLevel(10); // V
// An int between them does not: the type is the union of the literals, not
// their common base type.
acceptsLevel(5); // E?: 5 is not a value of Levels::MAP
// One of the constant's keys is not one of its values either.
acceptsLevel('low'); // E?: 'low' is a key of Levels::MAP, not a value of it