Improve str_replace return type
#4242
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which error is this PR trying to solve? can you reproduce the error/problem on phpstan.org/try ? |
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How can I create a try reproducible with the config |
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I see. you cannot set a config flag on phpstan.org/try. please add a test-case in ReturnTypeRuleTest which fails without your fix |
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When the config
checkBenevolentUnionTypesis enabled thestr_replacestarts to always reporting the return asstring|list<string>but in reality the return depends on the$subjectparam type.