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<?php function add(int $a, int $b): int { return $a + $b; } echo add($a = add($a = 2, $a), $a = add($a, $a)) + $a . "\n"; var_dump($a);
Output for 8.1.32 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
20 int(8)

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