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);

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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);
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);

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);
取变量地址