Fix phpstan/phpstan#14390: Unconsistant behavior for offsetAccess.notFound#5310

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phpstan-bot:create-pull-request/patch-yi96520

Commits on Mar 28, 2026

Fix array_key_first/array_key_last offset check for non-variable expressions

phpstan-bot
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staabm
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Add test coverage for array_rand and count()-1 property access patterns

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staabm
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Add test coverage for static property access patterns in array offset checks

authored and
staabm
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test pure/impure methods
staabm
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impureMethod expects error
staabm
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Guard ExprPrinter comparison with determinism check for impure method calls

phpstan-bot
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claude
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Check method args for determinism and support ArrayDimFetch in isDeterministicExpr

phpstan-bot
and
claude
committed