← All results

Conditional assertion @phpstan-assert-if-false

Group: Advanced PHPDoc types · Category: ecosystem · File: phpdoc_advanced_vendor_prefixed_assert_if_false_phpstan.php

The PHPStan spelling of the same "holds when the call returns false" conditional. Paired with the Psalm file under the other prefix. References: - PHPStan narrowing-types.md: @phpstan-assert-if-false - Psalm adding_assertions.md: assert-if-false

Analyzer results

AnalyzerVersionResultDiagnostics
phan 6.0.7Phan 6.0.7 php-ast version 1.1.3 PHP version used to run Phan: 8.5.9 Not enforced

No diagnostics reported.

  • Recognition: spelling resolved
  • Enforcement: 0/1 of the expected violations reported
phpstan 2.2.11PHPStan - PHP Static Analysis Tool 2.2.11 Enforced reported Lv.4+
phpdoc_advanced_vendor_prefixed_assert_if_false_phpstan.php:37: Call to function is_string() with int will always evaluate to false. [reported-from-level=4]
With strict-rules
phpdoc_advanced_vendor_prefixed_assert_if_false_phpstan.php:37: Call to function is_string() with int will always evaluate to false.
  • Recognition: spelling resolved
  • Enforcement: 1/1 of the expected violations reported
psalm 6.16.1Psalm 6.16.1@f1f5de594dc76faf8784e02d3dc4716c91c6f6ac
next: 7.0.0-beta19
Enforced (pzoom≠)
phpdoc_advanced_vendor_prefixed_assert_if_false_phpstan.php:37: Type int for $value is never string [TypeDoesNotContainType]
phpdoc_advanced_vendor_prefixed_assert_if_false_phpstan.php:37: Type int for $value is never string [RedundantCondition]
pzoom (Psalm port)

No diagnostics from pzoom.

  • Recognition: spelling resolved
  • Enforcement: 1/1 of the expected violations reported
mago 1.47.4mago 1.47.4 Enforced
phpdoc_advanced_vendor_prefixed_assert_if_false_phpstan.php:37: Impossible type assertion: `$value` of type `int` can never be `string`. [impossible-type-comparison]
phpdoc_advanced_vendor_prefixed_assert_if_false_phpstan.php:37: Redundant ternary operator: condition is always falsy. [impossible-condition]
  • Recognition: spelling resolved
  • Enforcement: 1/1 of the expected violations reported
mir 0.72.1mir 0.72.1 Not enforced

No diagnostics reported.

  • Recognition: spelling resolved
  • Enforcement: 0/1 of the expected violations reported
phpantom 0.10.0phpantom_lsp 0.10.0 Not enforced

No diagnostics reported.

  • Recognition: spelling resolved
  • Enforcement: 0/1 of the expected violations reported
intelephense 1.18.5intelephense 1.18.5 Not enforced

No diagnostics reported.

  • Recognition: spelling resolved
  • Enforcement: 0/1 of the expected violations reported
phpactor 2026.07.22.0Phpactor 2026.07.22.0 Not enforced

No diagnostics reported.

  • Recognition: spelling resolved
  • Enforcement: 0/1 of the expected violations reported
phpy 0.2.0phpy 0.2.0 Not enforced

No diagnostics reported.

  • Recognition: spelling resolved
  • Enforcement: 0/1 of the expected violations reported
qodana 262.9437.196Qodana 262.9437.196 Not enforced

No diagnostics reported.

  • Recognition: spelling resolved
  • Enforcement: 0/1 of the expected violations 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_if_false_phpstan.php:36: not null safety call in function Conformance\Tests\PhpdocAdvancedVendorPrefixedAssertIfFalsePhpStan\takesInt signature of param value [notNullSafetyFunctionArgumentVariable]
  • Recognition: spelling resolved
  • Enforcement: 0/1 of the expected violations reported
Expectation diff
Line 36: Expected valid value to be accepted, got ["not null safety call in function Conformance\\Tests\\PhpdocAdvancedVendorPrefixedAssertIfFalsePhpStan\\takesInt signature of param value [notNullSafetyFunctionArgumentVariable]"]
steins 0.1.6steins 0.1.6 (2026-08-25 revision c13b4c7) Not enforced

No diagnostics reported.

  • Recognition: spelling resolved
  • Enforcement: 0/1 of the expected violations reported
phpstan-strict 2.2.11PHPStan - PHP Static Analysis Tool 2.2.11 Enforced
phpdoc_advanced_vendor_prefixed_assert_if_false_phpstan.php:37: Call to function is_string() with int will always evaluate to false.
  • Recognition: spelling resolved
  • Enforcement: 1/1 of the expected violations reported
psalm-next 7.0.0-beta19Psalm 7.0.0-beta19@7e751c06a756fa64dc4c759c09fe4a173afcb433 Enforced
phpdoc_advanced_vendor_prefixed_assert_if_false_phpstan.php:37: Type int for $value is never string [TypeDoesNotContainType]
phpdoc_advanced_vendor_prefixed_assert_if_false_phpstan.php:37: Type int for $value is never string [RedundantCondition]
  • Recognition: spelling resolved
  • Enforcement: 1/1 of the expected violations reported

Source

<?php

declare(strict_types=1);

namespace Conformance\Tests\PhpdocAdvancedVendorPrefixedAssertIfFalsePhpStan;

/**
 * Conditional assertion `@phpstan-assert-if-false`.
 *
 * The PHPStan spelling of the same "holds when the call returns false"
 * conditional. Paired with the Psalm file under the other prefix.
 *
 * References:
 * - PHPStan narrowing-types.md: `@phpstan-assert-if-false`
 * - Psalm adding_assertions.md: assert-if-false
 */

/**
 * @phpstan-assert-if-false int $value
 */
function isNotIntValue(mixed $value): bool // T: @phpstan-assert-if-false
{
    return !\is_int($value);
}

function takesInt(int $value): void
{
}

function example(mixed $value): void
{
    if (isNotIntValue($value)) {
        // True branch: no assertion applied; `$value` stays mixed.
    } else {
        // False branch: the assertion makes `$value` an int.
        takesInt($value); // V
        echo \is_string($value) ? 'string' : 'int'; // E?: in the false branch, is_string() is always false
    }
}