@psalm-check-type / @psalm-check-type-exactCheckType issue
only where the inferred type does not match. The two spellings differ in
how strict the match is — @psalm-check-type accepts a subtype (the
literal 2 matches int), @psalm-check-type-exact demands the exact
type. A matching assertion is silent, so only the mismatch lines are
enforcement probes; the matching lines carry E?[noise] to tolerate a
tool that parses the tag and stumbles.
Attribution: Psalm blames the statement that follows the annotation, not
the docblock line, so the probes sit on those statements; the docblock
lines are kept free of trailing // comments for hygiene.
References:
- Psalm running_psalm/issues/CheckType.md| 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 | Not enforced | No diagnostics reported.
|
| psalm | 6.20.0Psalm 6.20.0@804f03c0c183d149fcd4b8c7c0c9b3fbf836d34c next: 7.0.0-rc2 |
Enforced | debug_psalm_check_type.php:37: Checked variable $x = 1 does not match $x = 2 [CheckType] debug_psalm_check_type.php:48: Checked variable $x = int does not match $x = 2 [CheckType]
|
| 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 | Not enforced | No diagnostics reported.
|
| psalm-next | 7.0.0-rc2Psalm 7.0.0-rc2@20339e3fe5b8d03bcd8061030eb2a83ad50e5783 | Enforced | debug_psalm_check_type.php:37: Checked variable $x = 1 does not match $x = 2 [CheckType] debug_psalm_check_type.php:48: Checked variable $x = int does not match $x = 2 [CheckType]
|
<?php
declare(strict_types=1);
namespace Conformance\Tests\DebugPsalmCheckType;
/**
* Cross-tool handling of `@psalm-check-type` / `@psalm-check-type-exact`.
*
* Psalm's assert-style inspection tags: the docblock states the type a
* variable should have at that point, and Psalm reports a `CheckType` issue
* only where the inferred type does not match. The two spellings differ in
* how strict the match is — `@psalm-check-type` accepts a subtype (the
* literal `2` matches `int`), `@psalm-check-type-exact` demands the exact
* type. A matching assertion is silent, so only the mismatch lines are
* enforcement probes; the matching lines carry `E?[noise]` to tolerate a
* tool that parses the tag and stumbles.
*
* Attribution: Psalm blames the statement that follows the annotation, not
* the docblock line, so the probes sit on those statements; the docblock
* lines are kept free of trailing `//` comments for hygiene.
*
* References:
* - Psalm running_psalm/issues/CheckType.md
*
* @conformance-kind debug
*/
function checkTypeExample(): void // T: @psalm-check-type
{
$x = 2;
/** @psalm-check-type $x = int */
echo $x; // E?[noise]: matching assertion — the literal 2 is an int, silence expected
/** @psalm-check-type $x = 1 */
echo $x; // E?: 2 is not the literal 1 — the sole enforcement probe
}
function checkTypeExactExample(): void // T: @psalm-check-type-exact
{
$x = 2;
/** @psalm-check-type-exact $x = 2 */
echo $x; // E?[noise]: exact match, silence expected
/** @psalm-check-type-exact $x = int */
echo $x; // E?: 2 is not exactly int — the sole enforcement probe
}