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Basic @throws compatibility checks

Group: Exceptions · Category: conventional · File: exceptions_throws_docblock.php · Kind: Style / opinionated (no runtime-safety impact)

References: - phpDocumentor @throws

Analyzer results

AnalyzerVersionResultDiagnostics
phan 6.0.10Phan 6.0.10 php-ast version 1.1.3 PHP version used to run Phan: 8.5.11 Pass

No diagnostics reported.

phpstan 2.3.1PHPStan - PHP Static Analysis Tool 2.3.1 Pass

No diagnostics reported.

psalm 6.20.0Psalm 6.20.0@804f03c0c183d149fcd4b8c7c0c9b3fbf836d34c
next: 7.0.0-rc2
Pass

No diagnostics reported.

mago 1.57.0mago 1.57.0 Pass

No diagnostics reported.

mir 0.87.0mir 0.87.0 Pass

No diagnostics reported.

phpantom 0.11.1phpantom_lsp 0.11.1 Pass

No diagnostics reported.

intelephense 1.18.5intelephense 1.18.5 Pass

No diagnostics reported.

phpactor 2026.10.07.0Phpactor 2026.10.07.0 Pass

No diagnostics reported.

phpy 1.0.19409phpy 1.0.19409 Pass

No diagnostics reported.

qodana 262.10968.76PhpStorm 262.10968.76 Fail
exceptions_throws_docblock.php:8: Undefined class 'compatibility' [PhpUndefinedClassInspection]
Expectation diff
Line 8: Unexpected errors ["Undefined class 'compatibility' [PhpUndefinedClassInspection]"]
noverify 0.5.5NoVerify, version 0.5.5: built on: 2025.04.22 14:36:46 OS: r-kuchinskas arm64 Commit: 4774b82f8adc53fbef38f95e97af4b953b4d1529 Pass

No diagnostics reported.

steins 0.1.8steins 0.1.8 (2026-09-21 revision 76306a9) Pass

No diagnostics reported.

phpstan-strict 2.3.1PHPStan - PHP Static Analysis Tool 2.3.1 Pass

No diagnostics reported.

psalm-next 7.0.0-rc2Psalm 7.0.0-rc2@20339e3fe5b8d03bcd8061030eb2a83ad50e5783 Pass

No diagnostics reported.

Source

<?php

declare(strict_types=1);

namespace Conformance\Tests\ExceptionsThrowsDocblock;

/**
 * Basic @throws compatibility checks.
 *
 * References:
 * - phpDocumentor @throws
 *
 * @conformance-kind style
 */

final class CustomException extends \RuntimeException
{
}

/**
 * @throws CustomException
 */
function alwaysThrows(): never
{
    throw new CustomException('boom');
}

/**
 * @throws \RuntimeException
 */
function documentedAsRuntime(): void
{
    alwaysThrows();
}