下边的变量前加"&"是什么含义
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下边的变量前加"&"是什么含义
$small = array(1,2,3,4,5,6);
$big[0] = &$small;
$big[1] = &$small;
print_r($big);
$small = array(1,2,3,4,5,6);
$big[0] = &$small;
$big[1] = &$small;
print_r($big);
![下边的变量前加](/uploads/image/z/17237568-48-8.jpg?t=%E4%B8%8B%E8%BE%B9%E7%9A%84%E5%8F%98%E9%87%8F%E5%89%8D%E5%8A%A0%22%26%22%E6%98%AF%E4%BB%80%E4%B9%88%E5%90%AB%E4%B9%89)
取变量地址