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Basic PHPDoc-only parameter type checks

Group: PHPDoc basics · Category: phpdoc · File: phpdoc_basics_param_types.php

References: - phpDocumentor PHPDoc @param - de facto analyzer support for PHPDoc parameter types

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 Pass 
phpdoc_basics_param_types.php:23: Argument 1 ($value) is 'x' of type string but \Conformance\Tests\PhpdocBasicsParamTypes\takesDocblockInt() takes int (no real type) defined at /Users/megurine/repo/php/php-typing-conformance/conformance/tests/phpdoc_basics_param_types.php:18 (the inferred real argument type has nothing in common with the parameter's phpdoc type) [PhanTypeMismatchArgumentProbablyReal]
phpstan 2.2.8PHPStan - PHP Static Analysis Tool 2.2.8 Pass reported Lv.5+ 
phpdoc_basics_param_types.php:23: Parameter #1 $value of function Conformance\Tests\PhpdocBasicsParamTypes\takesDocblockInt expects int, string given. [identifier=argument.type] [reported-from-level=5]
With strict-rules
phpdoc_basics_param_types.php:23: Parameter #1 $value of function Conformance\Tests\PhpdocBasicsParamTypes\takesDocblockInt expects int, string given. [identifier=argument.type]
psalm 6.16.1Psalm 6.16.1@f1f5de594dc76faf8784e02d3dc4716c91c6f6ac
next: 7.0.0-beta19		 Pass 
phpdoc_basics_param_types.php:23: Argument 1 of Conformance\Tests\PhpdocBasicsParamTypes\takesDocblockInt expects int, but 'x' provided [InvalidArgument]
mago 1.46.0mago 1.46.0 Pass 
phpdoc_basics_param_types.php:23: Invalid argument type for argument #1 of `Conformance\Tests\PhpdocBasicsParamTypes\takesDocblockInt`: expected `int`, but found `string('x')`. [invalid-argument]
mir 0.70.1mir 0.70.1 Pass 
phpdoc_basics_param_types.php:23: InvalidArgument: Argument $value of takesDocblockInt() expects 'int', got '"x"' [MIR0201]
phpantom 0.9.0phpantom_lsp 0.9.0 Pass 
phpdoc_basics_param_types.php:23: Argument 1 ($value) expects int, got 'x' [type_mismatch_argument]
intelephense 1.18.5intelephense 1.18.5 Fail

No diagnostics reported.

Expectation diff
Line 23: Expected 1 error(s)
phpy 0.2.0phpy 0.2.0 Pass 
phpdoc_basics_param_types.php:23: Argument '1' passed to Conformance\Tests\PhpdocBasicsParamTypes\takesDocblockInt() is expected to be of type int, string given
qodana 262.8665.325Qodana 262.8665.325 Pass 
phpdoc_basics_param_types.php:23: Parameter ''x'' type is not compatible with declaration when using strict type matching [PhpParamsInspection]
noverify 0.5.5NoVerify, version 0.5.5: built on: 2025.04.22 14:36:46 OS: r-kuchinskas arm64 Commit: 4774b82f8adc53fbef38f95e97af4b953b4d1529 Fail

No diagnostics reported.

Expectation diff
Line 23: Expected 1 error(s)
steins 0.1.5steins 0.1.5 (2026-08-12 revision 39b4cc1) Pass 
phpdoc_basics_param_types.php:23: argument "x" to takesDocblockInt() violates declared @param int $value — declared contract violation [phpdoc.param-mismatch]
phpstan-strict 2.2.8PHPStan - PHP Static Analysis Tool 2.2.8 Pass 
phpdoc_basics_param_types.php:23: Parameter #1 $value of function Conformance\Tests\PhpdocBasicsParamTypes\takesDocblockInt expects int, string given. [identifier=argument.type]
psalm-next 7.0.0-beta19Psalm 7.0.0-beta19@7e751c06a756fa64dc4c759c09fe4a173afcb433 Pass 
phpdoc_basics_param_types.php:23: Argument 1 of Conformance\Tests\PhpdocBasicsParamTypes\takesDocblockInt expects int, but 'x' provided [InvalidArgument]

Source

<?php

declare(strict_types=1);

namespace Conformance\Tests\PhpdocBasicsParamTypes;

/**
 * Basic PHPDoc-only parameter type checks.
 *
 * References:
 * - phpDocumentor PHPDoc @param
 * - de facto analyzer support for PHPDoc parameter types
 */

/**
 * @param int $value
 */
function takesDocblockInt($value): void
{
}

takesDocblockInt(1);
takesDocblockInt('x'); // E: string is not accepted by @param int