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<?php $a = NULL; $c = ''; print $a ?? '1b'; print "\n"; print $a ?: '2b'; print "\n"; print $c ?? '1d'; print "\n"; print $c ?: '2d'; print "\n"; print $e ?? '1f'; print "\n"; print $e ?: '2f';

This is an error 500

Value for `_results` contains invalid data `array`


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