Question

可能重复：
How to modify xml file using PHP

我有一个看起来像这样的xml：

<host host-name="www.1.com">
   <root-directory>c:/public_html</root-directory>
</host>
<host host-name="www.2.com">
   <root-directory>c:/public_html</root-directory>
</host>

我需要像这样使用php修改xml

如果host-name的值= www.2.com

更改c：/ public_html / blahblah

中root目录的值

所以最终的结果是：

<host host-name="www.1.com">
   <root-directory>c:/public_html</root-directory>
</host>
<host host-name="www.2.com">
   <root-directory>c:/public_html/blahblah</root-directory>
</host>

我真的需要一些帮助。谢谢！

更新

哦，我忘了提到我不是程序员，无论如何这里是我试过的

$xmlDomain= "www.2.com";
$nomefile='myfile.xml';
$xmlDoc = new DomDocument();
$xmlDoc->load($nomefile); 
$Xroot = $xmlDoc->documentElement;
$products = $Xroot->getElementsByTagName("host");
$length = $products->length;
for ($i=$length-1;$i>=0;$i--)
{
$p = $products->item($i);    
$pid = $p->getAttribute("host-name");

if ($pid == $xmlDomain)
{  
$parent = $xmlDoc->getElementsByTagName("root-directory");     
$parent->nodeValue = 'c:/public_html/blahblah';             
}
}
$strxml = $xmlDoc->saveXML();
$handle = fopen($nomefile, "w");
fwrite($handle, $strxml);
fclose($handle);

Answer 1

好的，我需要离开编写文档一分钟，所以这里是：

function modifyRootDirectoryFormHosts(DOMDocument $doc, $hostNameToLookFor, $newRootDirectory)
{
    $xpath = new DOMXPath($doc);
    $items = $xpath->query(sprintf('//host[@host-name="%s"]', $hostNameToLookFor));

    if (count($items) > 0)
    {
        foreach($items as $item)
        {
            foreach($item->getElementsByTagName('root-directory') as $rootDirElement)
            {
                $rootDirElement->removeChild($rootDirElement->firstChild);
                $rootDirElement->appendChild($doc->createTextNode($newRootDirectory));
            }
        }
    }
}

$xmlSource = <<<XML
<root>
<host host-name="www.1.com">
   <root-directory>c:/public_html</root-directory>
</host>
<host host-name="www.2.com">
   <root-directory>c:/public_html</root-directory>
</host>
</root>
XML;


$doc = new DOMDocument();
$doc->loadXML($xmlSource);

modifyRootDirectoryFormHosts($doc, 'www.2.com', 'c:/public_html/blahblah');

echo $doc->saveXML();

输出是：

<?xml version="1.0"?>
<root>
<host host-name="www.1.com">
   <root-directory>c:/public_html</root-directory>
</host>
<host host-name="www.2.com">
   <root-directory>c:/public_html/blahblah</root-directory>
</host>
</root>

使用PHP编辑XML

1 个答案: