[請益] 沒用 = & 卻有 reference 的效果？
<php
class Item {
var $name;
function __construct($name) { $this->name = $name; }
}
class Box {
var $items;
function __construct() {
$this->items = array();
}
function replace() {
$_items = $this->items;
print_r($this->items);
$_items[0]->name = 'A';
print_r($this->items);
/*
明明異動的是 $_items 裡的值，
但是 $this->items 也同步異動了。
是否有高人可以指點迷津？謝謝。
*/
}
}
$BBB = new Box();
$BBB->items[] = new Item('a');
$BBB->items[] = new Item('b');
$BBB->items[] = new Item('c');
$BBB->replace();
?>
會得到以下的結果:
Array
(
[0] => Item Object
(
[name] => a
)
[1] => Item Object
(
[name] => b
)
[2] => Item Object
(
[name] => c
)
)
Array
(
[0] => Item Object
(
[name] => A
)
[1] => Item Object
(
[name] => b
)
[2] => Item Object
(
[name] => c
)
)
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