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<?php $a = isset($b) ? $b : -1; $a = $b ?? -1; echo $a; // results: -1 $a = null; $b = null; $c = 10; $d = null; var_dump ($a ?? $b ?? $c ?? $d); // results: 10
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 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 - 8.3.7
-1int(10)
Output for 5.4.2 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
Parse error: syntax error, unexpected '?' in /in/OldcW on line 3
Process exited with code 255.
preferences:
164.1 ms | 402 KiB | 243 Q