@psalm-assert@phpstan-assert under the other vendor's prefix.
Since the two tags mean the same thing, a tool that honours one and not the
other is choosing which dialect to read rather than which feature to support
— which is the whole point of testing the prefixes separately.
References:
- Psalm adding_assertions.md: @psalm-assert
- PHPStan phpdocs-basics: prefixed assertion tags| Analyzer | Version | Result | Diagnostics |
|---|---|---|---|
| phan | 6.0.10Phan 6.0.10 php-ast version 1.1.3 PHP version used to run Phan: 8.5.11 | Not enforced | No diagnostics reported.
|
| phpstan | 2.3.1PHPStan - PHP Static Analysis Tool 2.3.1 | Enforced reported Lv.4+ | phpdoc_advanced_vendor_prefixed_assert_psalm.php:42: Call to function is_string() with int will always evaluate to false. [reported-from-level=4] With strict-rulesphpdoc_advanced_vendor_prefixed_assert_psalm.php:42: Call to function is_string() with int will always evaluate to false.
|
| psalm | 6.20.0Psalm 6.20.0@804f03c0c183d149fcd4b8c7c0c9b3fbf836d34c next: 7.0.0-rc2 |
Enforced (pzoom≠) | phpdoc_advanced_vendor_prefixed_assert_psalm.php:42: Type int for $value is never string [TypeDoesNotContainType] phpdoc_advanced_vendor_prefixed_assert_psalm.php:42: Type int for $value is never string [RedundantCondition] pzoom (Psalm port)No diagnostics from pzoom.
|
| mago | 1.57.0mago 1.57.0 | Enforced | phpdoc_advanced_vendor_prefixed_assert_psalm.php:42: Impossible type assertion: `$value` of type `int` can never be `string`. [impossible-type-comparison] phpdoc_advanced_vendor_prefixed_assert_psalm.php:42: Redundant ternary operator: condition is always falsy. [impossible-condition]
|
| mir | 0.87.0mir 0.87.0 | Not enforced | No diagnostics reported.
|
| phpantom | 0.11.1phpantom_lsp 0.11.1 | Not enforced | No diagnostics reported.
|
| intelephense | 1.18.5intelephense 1.18.5 | Not enforced | No diagnostics reported.
|
| phpactor | 2026.10.07.0Phpactor 2026.10.07.0 | Not enforced | No diagnostics reported.
|
| phpy | 1.0.19409phpy 1.0.19409 | Not enforced | No diagnostics reported.
|
| qodana | 262.10968.76PhpStorm 262.10968.76 | Not enforced | No diagnostics reported.
|
| noverify | 0.5.5NoVerify, version 0.5.5: built on: 2025.04.22 14:36:46 OS: r-kuchinskas arm64 Commit: 4774b82f8adc53fbef38f95e97af4b953b4d1529 | Not enforced | phpdoc_advanced_vendor_prefixed_assert_psalm.php:38: not null safety call in function Conformance\Tests\PhpdocAdvancedVendorPrefixedAssertPsalm\takesInt signature of param value [notNullSafetyFunctionArgumentVariable]
Expectation diffLine 38: Expected valid value to be accepted, got ["not null safety call in function Conformance\\Tests\\PhpdocAdvancedVendorPrefixedAssertPsalm\\takesInt signature of param value [notNullSafetyFunctionArgumentVariable]"] |
| steins | 0.1.8steins 0.1.8 (2026-09-21 revision 76306a9) | Not enforced | No diagnostics reported.
|
| phpstan-strict | 2.3.1PHPStan - PHP Static Analysis Tool 2.3.1 | Enforced | phpdoc_advanced_vendor_prefixed_assert_psalm.php:42: Call to function is_string() with int will always evaluate to false.
|
| psalm-next | 7.0.0-rc2Psalm 7.0.0-rc2@20339e3fe5b8d03bcd8061030eb2a83ad50e5783 | Enforced | phpdoc_advanced_vendor_prefixed_assert_psalm.php:42: Type int for $value is never string [TypeDoesNotContainType] phpdoc_advanced_vendor_prefixed_assert_psalm.php:42: Type int for $value is never string [RedundantCondition]
|
<?php
declare(strict_types=1);
namespace Conformance\Tests\PhpdocAdvancedVendorPrefixedAssertPsalm;
/**
* Cross-tool handling of `@psalm-assert`
*
* The same guarantee as `@phpstan-assert` under the other vendor's prefix.
* Since the two tags mean the same thing, a tool that honours one and not the
* other is choosing which dialect to read rather than which feature to support
* — which is the whole point of testing the prefixes separately.
*
* References:
* - Psalm adding_assertions.md: @psalm-assert
* - PHPStan phpdocs-basics: prefixed assertion tags
*/
/**
* @psalm-assert int $value
*/
function assertIsInt(mixed $value): void // T: @psalm-assert
{
if (!\is_int($value)) {
throw new \InvalidArgumentException('not an int');
}
}
function takesInt(int $value): void
{
}
function example(mixed $value): void
{
assertIsInt($value);
takesInt($value); // V
// Applying the assertion makes $value an int, so this test can never be
// true. Ignoring the tag leaves `mixed`, where it is an ordinary check.
echo \is_string($value) ? 'string' : 'int'; // E?: after @psalm-assert int, is_string() is always false
}