获取xml文件以查找和替换文本。的PHP

DOM文档可以复制节点的结构，所以，而不必个别地复制所有的细节（其可以是容易丢失的数据，当规范的变化），则可以复制整个节点（例如<Inmueble>从一个文档）到另一个使用importNode()其具有一个参数，指示应复制元素的全部内容。这种方法还允许您使用相同的功能复制任何表，而无需更改代码...

function extractData ( $sourceFile, $table )    {
    // Load source data
    $source = new DOMDocument();
    $source->load($sourceFile);
    $xp = new DOMXPath($source);

    // Create new data document
    $newFile = new DOMDocument();
    $newFile->formatOutput = true;
    // Create base element with the table name in new document
    $newRoot = $newFile->createElement($table);
    $newFile->appendChild($newRoot);

    // Find the records to copy
    $records = $xp->query('//Table[@Name="'.$table.'"]/*');
    foreach ( $records as $record ) {
        // Import the node to copy and append it to new document
        $newRoot->appendChild();
    }
    // Return the source of the XML
    return $newFile->saveXML();
}

echo extractData ($xml_external_path, "Inmuebles");

如果希望进一步处理，可以更改将文档返回为DOMDocument或SimpleXML版本的方法。

对于SimpleXML，将返回值更改为...

return simplexml_import_dom($newRoot);

然后您可以将其称为...

$ret = extractData ($xml_external_path, "Inmuebles");
echo $ret->asXML();

或者，如果您只是想要一种固定的方法，则可以删除XPath并仅使用它getElementsByTagName()来查找要复制的节点...

$source = new DOMDocument();
$source->load($xml_external_path);

$newFile = new DOMDocument();
$newRoot = $newFile->createElement("Inmuebles");
$newFile->appendChild($newRoot);

// Find the records to copy
foreach ( $source->getElementsByTagName("Inmueble") as $record ) {
    $newRoot->appendChild($newFile->importNode($record, true));
}
echo $newFile->saveXML();

要添加保存文件名，我向该函数添加了一个新参数，该新函数根本不返回任何内容，它只是加载文件并将结果保存为新文件名...

function extractData ( $sourceFile, $table, $newFileName )    {
    // Load source data
    $source = new DOMDocument();
    $source->load($sourceFile);
    $xp = new DOMXPath($source);

    // Create new file document
    $newFile = new DOMDocument();
    $newFile->formatOutput = true;
    // Create base element with the table name in new document
    $newRoot = $newFile->createElement($table);
    $newFile->appendChild($newRoot);

    // Find the records to copy
    $records = $xp->query('//Table[@Name="'.$table.'"]/*');
    foreach ( $records as $record ) {
        // Import the node to copy and append it to new document
        $importNode = $newFile->importNode($record, true);
        // Add new content
        $importNode->appendChild($newFile->createElement("Title", "value"));
        $newRoot->appendChild();
    }

    // Update Foto elements
    $xp = new DOMXPath($newFile);
    $fotos = $xp->query("//*[starts-with(local-name(), 'Foto')]");
    foreach ( $fotos as $foto ) {
        $path = $foto->nodeValue;
        if( substr($path, 0, 5) == "/www/" )    {
            $path = substr($path,4);
        }
        // Replace node with new version
        $foto->parentNode->replaceChild($newFile->createElement("Foto1", $path), 
                  $foto);
    }  

    $newFile->save($newFileName);
}
$xml_external_path = 'http://www.csainmobiliaria.com/imagenes/fotos/pisos.xml';
$xml_external_savepath = 'saveFile.xml';

extractData ($xml_external_path, "Inmuebles", $xml_external_savepath);