@param-later-invoked-callabletry
around the call then cannot see exceptions thrown inside the
callback, which is a dead catch once the callee is known not to
throw (@phpstan-throws void turns off PHPStan's implicit-throws
default without using the @throws void spelling other tools
reject as a reserved word).
References:
- PHPStan phpdocs-basics: Callables
- PHPStan 1.11 release notes| 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_phpstan_param_later_invoked_callable.php:48: Dead catch - Conformance\Tests\PhpdocAdvancedPhpstanParamLaterInvokedCallable\Boom is never thrown in the try block. [reported-from-level=4] With strict-rulesphpdoc_advanced_phpstan_param_later_invoked_callable.php:48: Dead catch - Conformance\Tests\PhpdocAdvancedPhpstanParamLaterInvokedCallable\Boom is never thrown in the try block.
|
| psalm | 6.20.0Psalm 6.20.0@804f03c0c183d149fcd4b8c7c0c9b3fbf836d34c next: 7.0.0-rc2 |
Not enforced | No diagnostics reported.
|
| mago | 1.57.0mago 1.57.0 | Not enforced | No diagnostics reported.
|
| 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 | No diagnostics reported.
|
| 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_phpstan_param_later_invoked_callable.php:48: Dead catch - Conformance\Tests\PhpdocAdvancedPhpstanParamLaterInvokedCallable\Boom is never thrown in the try block.
|
| psalm-next | 7.0.0-rc2Psalm 7.0.0-rc2@20339e3fe5b8d03bcd8061030eb2a83ad50e5783 | Not enforced | No diagnostics reported.
|
<?php
declare(strict_types=1);
namespace Conformance\Tests\PhpdocAdvancedPhpstanParamLaterInvokedCallable;
/**
* Cross-tool handling of `@param-later-invoked-callable`.
*
* Free functions default to immediately-invoked. The tag overrides a
* function parameter so the callable is treated as deferred. A `try`
* around the call then cannot see exceptions thrown inside the
* callback, which is a dead catch once the callee is known not to
* throw (`@phpstan-throws void` turns off PHPStan's implicit-throws
* default without using the `@throws void` spelling other tools
* reject as a reserved word).
*
* References:
* - PHPStan phpdocs-basics: Callables
* - PHPStan 1.11 release notes
*/
final class Boom extends \RuntimeException
{
}
/**
* @param-later-invoked-callable $callback
* @phpstan-throws void
*/
function schedule(callable $callback): void // T: @param-later-invoked-callable
{
}
/**
* @phpstan-throws void
*/
function runNow(callable $callback): void
{
}
function example(): void
{
try {
schedule(static function (): void {
throw new Boom('later');
});
} catch (Boom $exception) { // E?: later-invoked callback cannot throw here
echo $exception->getMessage();
}
try {
runNow(static function (): void {
throw new Boom('now');
});
} catch (Boom $exception) { // V: default immediately-invoked, catch is live
echo $exception->getMessage();
}
}