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<?php class Canary extends stdClass { public function __construct(public string $name) { } function __destruct() { echo $this->name."\n"; } } $canary = new Canary('canary'); $map = new \WeakMap(); $map[$canary] = 'foo'; echo 1; unset($canary); echo 2;
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
1canary 2

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93.73 ms | 406 KiB | 5 Q