如何從特定對象數組中獲取對象？

Question

我是PHP-POO中的新成員。我想從數組中檢索對象並訪問該對象的屬性。

我的意圖代碼：

require_once("../modelo/ClubDAO.php"); 
require_once("../modelo/Club.php"); 
require_once("../utils/ArrayList.php"); 

$clubs = new ArrayList(); 
/* GET ALL THE CLUBS OF THE DATABASE (WORKS GOOD)*/ 
$clubs = ClubDAO::get_instancia()->getAllClubs(); 

for($i = 0; $i < $clubs->size(); $i++) 
{ 
    $club = new Club(); 
    $club->getNif(); /* HERE I CAN ACCESS TO THE FIELDS */ 
    $club = $clubs->item($i); 

    $club->/*HERE I CAN'T ACCES TO THE FIELDS OF THE CLASS*/ 
} 

ArrayList類是一個簡單的數組的封裝，對我來說這更容易，這裏的代碼工作：

class ArrayList { 

    var $array; 

    public function ArrayList() { 
     $this->array = array(); 
    } 

    public function addItem($item){ 
     $this->array[] = $item ; 
    } 

    public function toString(){ 
     $cadena = ""; 
     foreach ($this->array as $item) { 
      $cadena .= $item; 
     } 
     return $cadena; 
    } 

    public function delete($item){ 
     unset($this->array[$item]); 
    } 

    public function item($item){ 
     return $this->array[$item]; 
    } 

    public function size(){ 
     return count($this->array); 
    } 
} 

Answer 1

您將要覆蓋變量：

$club = $clubs->item($i); 

所以它不會是你期望的對象。