3v4l.org

run code in 500+ PHP versions simultaneously
<?php class CoalesceTest { public function __isset(string $key): bool { return false; } public function __get(string $key): mixed { throw new \Exception(); } } $test = new CoalesceTest(); var_dump($test->bar ?? 'fallback');
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
string(8) "fallback"

preferences:
27.65 ms | 1152 KiB | 7 Q