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--TEST--
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array unpacking with undefinded variable
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--FILE--
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<?php
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var_dump([...$arr]);
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?>
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--EXPECTF--
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Warning: Undefined variable $arr in %s on line %d
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Fatal error: Uncaught Error: Only arrays and Traversables can be unpacked in %s:%d
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Stack trace:
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#0 {main}
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thrown in %s on line %d
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