<?php $convertQ = function ($str) { switch ($str) { case '0': case 'No': return 'no'; case '1': case 'Yes': return 'yes'; case 'Unsure': return 'maybe'; default: throw new \InvalidArgumentException('Unaccounted for value for questionnaire field: ' . $str); } }; var_dump($convertQ(0)); // expect 'no', get 'no' var_dump($convertQ('No')); // expect 'no', get 'no' var_dump($convertQ(1)); // expect 'yes', get 'yes' var_dump($convertQ('Yes')); // expect 'yes', get 'yes' var_dump($convertQ('Unsure')); // expect 'maybe', get 'maybe' var_dump($convertQ('a')); // expect thrown error, get error thrown
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