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run code in 300+ PHP versions simultaneously
<?php $hold = ['warning', 'warning', 'critical', 'ok', 'this is bad']; $messages = ['warning' => 'it is a warning', 'critical' => 'its critical', 'ok' => 'everyhting is ok']; foreach ($hold as $status) { echo ($messages[$status] ?? 'unknown') . PHP_EOL; }
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.14
it is a warning it is a warning its critical everyhting is ok unknown

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