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<?php $one = [1]; $two = [42]; $data = [ ['k' => &$one], ['k' => &$two], ]; var_dump($data[0]['k'][0], $data[1]['k'][0]); array_replace_recursive($data[0], $data[1]); var_dump($data[0]['k'][0], $data[1]['k'][0]);
Output for git.master, git.master_jit, rfc.property-hooks
int(1) int(42) int(1) int(42)

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