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                            # PHP addChild() 函數



## 定義和用法

addChild() 函數向指定的 XML 節點添加一個子節點。

該函數返回一個 SimpleXMLElement 對象，這個對象表示添加到 XML 節點的子元素。

### 語法

```
class SimpleXMLElement
{
string addChild(name,value,ns)
}
```

| 參數 | 描述 |
| --- | --- |
| name | 必需。規定子元素的名稱。 |
| value | 必需。規定子元素的值。 |
| ns | 可選。規定子元素的命名空間。 |

## 例子

XML 文件：

```
<?xml version="1.0" encoding="ISO-8859-1"?>
<note>
<to>George</to>
<from>John</from>
<heading>Reminder</heading>
<body>Don't forget the meeting!</body>
</note>
```

PHP 代碼：

```
<?php
$xml = simplexml_load_file("test.xml");

$xml->body[0]->addChild("date", "2008-08-08");

foreach ($xml->body->children() as $child)
  {
  echo "Child node: " . $child;
  }
?>
```

輸出：

```
Child node: 2008-08-08
```




                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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