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Add non regression test for 4809 #4181

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Merged
merged 1 commit into from
Sep 7, 2025
Merged

Add non regression test for 4809 #4181

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5 changes: 5 additions & 0 deletions tests/PHPStan/Rules/Arrays/NonexistentOffsetInArrayDimFetchRuleTest.php
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Original file line number Diff line number Diff line change
Expand Up @@ -907,6 +907,11 @@ public function testBug12605(): void
]);
}

public function testBug4809(): void
{
$this->analyse([__DIR__ . '/data/bug-4809.php'], []);
}

public function testBug11602(): void
{
$this->reportPossiblyNonexistentGeneralArrayOffset = true;
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27 changes: 27 additions & 0 deletions tests/PHPStan/Rules/Arrays/data/bug-4809.php
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Original file line number Diff line number Diff line change
@@ -0,0 +1,27 @@
<?php declare(strict_types = 1);

namespace Bug4809;

class SomeClass
{
/**
* @param array{
* some?: string,
* another?: string,
* } $data
* @param string $key
* @return void
*/
public function someFunction(array $data, string $key): void
{
if($key !== 'some' && $key !== 'another') {
return;
}

if(!array_key_exists($key, $data)) {
return;
}

var_dump($data[$key]);
}
}
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