| Analyzer | Version | Result | Diagnostics |
|---|---|---|---|
| phan | 6.0.11Phan 6.0.11 php-ast version 1.1.3 PHP version used to run Phan: 8.5.11 | Pass | historical_implicit_nullable_parameter.php:16: Implicit nullable parameters (array $values = null) have been deprecated in PHP 8.4 [PhanDeprecatedImplicitNullableParam] |
| phpstan | 2.3.5PHPStan - PHP Static Analysis Tool 2.3.5 | Pass reported Lv.0+ | historical_implicit_nullable_parameter.php:16: Deprecated in PHP 8.4: Parameter #1 $values (array) is implicitly nullable via default value null. [reported-from-level=0] historical_implicit_nullable_parameter.php:16: Function Conformance\Tests\HistoricalImplicitNullableParameter\legacyImplicitNullable() has parameter $values with no value type specified in iterable type array. [reported-from-level=6] With strict-ruleshistorical_implicit_nullable_parameter.php:16: Deprecated in PHP 8.4: Parameter #1 $values (array) is implicitly nullable via default value null. historical_implicit_nullable_parameter.php:16: Function Conformance\Tests\HistoricalImplicitNullableParameter\legacyImplicitNullable() has parameter $values with no value type specified in iterable type array. |
| psalm | 6.20.9Psalm 6.20.9@f67170ac3c3b931f5088681e21d6c8babc601c08 next: 7.0.4 |
Pass | No diagnostics reported. |
| mago | 1.59.0mago 1.59.0 | Pass | No diagnostics reported. |
| mir | 0.91.0mir 0.91.0 | Pass | historical_implicit_nullable_parameter.php:16: ImplicitlyNullableParameter: Conformance\Tests\HistoricalImplicitNullableParameter\legacyImplicitNullable(): Implicitly marking parameter $values as nullable is deprecated, the explicit nullable type must be used instead [MIR1013] |
| phpantom | 0.11.1phpantom_lsp 0.11.1 | Pass | No diagnostics reported. |
| intelephense | 1.18.5intelephense 1.18.5 | Pass | historical_implicit_nullable_parameter.php:16: Implicitly nullable parameters are deprecated. [P1078] |
| phpactor | 2026.10.07.0Phpactor 2026.10.07.0 | Pass | No diagnostics reported. |
| phpy | 1.0.19490phpy 1.0.19490 | Pass | historical_implicit_nullable_parameter.php:16: Implicitly marking parameter $values as nullable is deprecated, the explicit nullable type must be used instead |
| qodana | 262.11879.104PhpStorm 262.11879.104 | Pass | historical_implicit_nullable_parameter.php:16: Implicitly marking parameter as nullable is deprecated [PhpDeprecatedImplicitlyNullableParameterInspection] |
| noverify | 0.5.5NoVerify, version 0.5.5: built on: 2025.04.22 14:36:46 OS: r-kuchinskas arm64 Commit: 4774b82f8adc53fbef38f95e97af4b953b4d1529 | Pass | historical_implicit_nullable_parameter.php:16: parameter with null default value should be explicitly nullable [notExplicitNullableParam] |
| steins | 0.1.8steins 0.1.8 (2026-09-21 revision 76306a9) | Pass | historical_implicit_nullable_parameter.php:16: parameter $values of legacyImplicitNullable() is an iterable with no value type — write `array<T>`, `T[]`, `list<T>` or an array shape [untyped.iterable-value] |
| phpstan-strict | 2.3.5PHPStan - PHP Static Analysis Tool 2.3.5 | Pass | historical_implicit_nullable_parameter.php:16: Deprecated in PHP 8.4: Parameter #1 $values (array) is implicitly nullable via default value null. historical_implicit_nullable_parameter.php:16: Function Conformance\Tests\HistoricalImplicitNullableParameter\legacyImplicitNullable() has parameter $values with no value type specified in iterable type array. |
| psalm-next | 7.0.4Psalm 7.0.4@fa5b1f6e665cb743838ffd865b8fc96207f9409f | Pass | No diagnostics reported. |
<?php
declare(strict_types=1);
namespace Conformance\Tests\HistoricalImplicitNullableParameter;
/**
* Historical implicit-nullable parameter syntax.
*
* References:
* - python-typing historical group inspiration
* - legacy PHP signatures that relied on a null default before explicit nullable hints
*
* @conformance-kind style
*/
function legacyImplicitNullable(array $values = null): void // E?: implicit nullable parameter
{
}
legacyImplicitNullable();
legacyImplicitNullable([1, 2, 3]);