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<?php $array = [ 1 => null, 2 => null, 3 => 1, ]; $a = $array[0] ?? 0; var_dump($a); $b = $array[1] ?? 0; var_dump($b); $c = $array[3] ?? 0; var_dump($c);
Output for git.master, git.master_jit, rfc.property-hooks
int(0) int(0) int(1)

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