php中Iterator迭代对象属性的用法介绍
时间:2019-07-27 编辑:
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foreach用法和之前的数组遍历是一样的,只不过这里遍历的key是属性名,value是属性值。在类外部遍历时,只能遍历到public属性的,因为其它的都是受保护的,类外部不可见。
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | class HardDiskDrive {
public $brand ;
public $color ;
public $cpu ;
public $workState ;
protected $memory ;
protected $hardDisk ;
private $price ;
public function __construct( $brand , $color , $cpu , $workState , $memory , $hardDisk , <code class="php variable" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-
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