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<?php class O { function __destruct() { echo "D\n"; } } $o = new O(); $fx = fn() => ($o = 5) && $o; unset($o); var_dump($fx()); $o = new O(); $fx = fn($o) => $o; unset($o); var_dump($fx(5));
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
bool(true) D D int(5)

preferences:
28.75 ms | 1137 KiB | 7 Q