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<?php $a = NULL; var_dump(isset($a)); $b = FALSE; $d = 1; $e = $a ?? $b ?? $c ?? $d; var_dump($d);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
bool(false) int(1)
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Parse error: syntax error, unexpected '?' in /in/fFkd8 on line 6
Process exited with code 255.
preferences:
185.6 ms | 402 KiB | 181 Q