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<?php function bar() { return null; } $x = bar() ?? 'default'; var_dump($x); $x = is_null(bar()) ? bar() : 'default'; var_dump($x);
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 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 - 8.3.6
string(7) "default" NULL
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38
Parse error: syntax error, unexpected '?' in /in/pd2sX on line 8
Process exited with code 255.
preferences:
245.98 ms | 402 KiB | 368 Q