Fix always-true detection in in_array with union type haystack #3888
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your PR has impact on more open bugs. please look at the changes and decide whether these are correct/intended please add additional tests to cover this bugs, in case they are fixed |
staabm
reviewed
Mar 19, 2025
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| /** | ||
| * @param array{ | ||
| * key1: ?bool, | ||
| * } $myArray | ||
| */ | ||
| public function testBool(array $myArray): ?\stdClass | ||
| { | ||
| if (\in_array(null, $myArray, true)) { | ||
| return null; | ||
| } | ||
|
|
||
| return (object) $myArray; | ||
| } |
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you should test a case which is expected to still emit an error after the change (a array which always contains null)
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resolve phpstan/phpstan#12755