PHP：如何遍歷一個類的所有對象？

Question

我的數組，其中包含對象，這在他們的對象，例如代碼：

<?php 
class person { 
    public $name; 
    public $foods=array(); 
} 
class food { 
    public $foodnames=array() ; 
} 
$peoplearray[$name] = new person; 
$peoplearray[$name]->name = 'john' ; 
$peoplearray[$name]->foods[$key] = new food; 
$peoplearray[$name]->foods[$key]->foodnames[$key] = 'ice cream' ; 
$peoplearray[$name]->foods[$key] = new food; 
$peoplearray[$name]->foods[$key]->foodnames[$key] = 'banana' ; 

$peoplearray[$name] = new person; 
$peoplearray[$name]->name = 'julie' ; 
$peoplearray[$name]->foods[$key] = new food; 
$peoplearray[$name]->foods[$key]->foodnames[$key] = 'chocolate' ; 
$peoplearray[$name]->foods[$key] = new food; 
$peoplearray[$name]->foods[$key]->foodnames[$key] = 'coffee' ; 
$peoplearray[$name]->foods[$key] = new food; 
$peoplearray[$name]->foods[$key]->foodnames[$key] = 'rice' ; 
?> 

現在我需要通過類食品中的所有對象過於重複，所以我可以取回他們的屬性。任何人都知道這樣做最有效的方法？

Answer 1

聲明類食品靜態屬性，把你的食物對象在其構造時間：

class food { 
    public static $collection = array(); 
    // other properties ... 

    public function __construct() { 
    // Stuff 
    self::$collection[] = $this; 
    } 
} 

// Create foo objects 
$f = new food(); 

// Iterate 
foreach(food::$collection as $foodobj) { 
    // Stuff 
}