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--TEST-- Bug #79364 (When copy empty array, next key is unspecified) --FILE-- <?php $a = [1, 2]; unset($a[1], $a[0]); $b = $a; $a[] = 3; $b[] = 4; var_dump($a, $b); ?> --EXPECT-- array(1) { [2]=> int(3) } array(1) { [2]=> int(4) }