PHP-SimpleXML：編輯節點及其屬性

Question

在PHP腳本中，我想編輯一個節點及其屬性。

<config> 
    <Week> 
     <Monday from="18:00:00" to="8:00:00">true</Monday> 
     <Tuesday from="18:00:00" to="8:00:00">true</Tuesday> 
</Week></config> 


foreach ($config->Week->children() as $day){ 
    $day = $_POST["b_".$day]; 
    $day['from'] = $_POST[$day."_from"]; 
    $day['to'] = $_POST[$day."_to"]; 
} 

這似乎並沒有工作。但這並

$config->Week->Monday = $_POST['b_Monday']; 
$config->Week->Monday['from'] = $_POST['Monday_from']; 
$config->Week->Monday['to'] = $_POST['Monday_to']; 

有沒有辦法做到這一點在一個循環中，所以我在沒有硬編碼的節點名稱？從日

Answer 1

變化& $日

foreach ($config->Week->children() as &$day){ 

但是，下一個是更好

$children = $config->Week->children(); 
foreach ($children as &$day) { 
     : 
     : 
} 
$config->Week->setChildren($children); // setter 

它不能有太大的英語，但我會流傳下來的？