在foreach循環中更改集合的元素

Question

我可以在PHP中執行以下操作嗎？

foreach ($collection as &$element) 
    $element = ... 

Answer 1

幾乎 - 你應該刪除%。下面是一個例子，它與PHP 5.3.4本地工作：

$foo = array("1" => "First", "2" => "Second"); 

foreach($foo as $key => & $element) { 
    $element = $element . " With More Text Attached!\n"; 
} 

print_r($foo); 

結果

Array ( 
    [1] => First With More Text Attached! 
    [2] => Second With More Text Attached! 
)