在XML節點值轉換特殊字符，以簡單的字符，並保存爲XML文件

Question

這是我的代碼：

<?php 
$dom = new DOMDocument(); 
$dom->load('http://services.gisgraphy.com/geoloc/search?lat=22.298569900000000000&lng=70.794301799999970000&radius=7000', true); 
$dom->save('filename.xml'); 
?> 

我收到此類型的輸出：

<?xml version="1.0" encoding="UTF-8" standalone="yes"?> 
<results xmlns="http://gisgraphy.com"> 
    <numFound>1</numFound> 
    <QTime>67</QTime> 
    <result> 
     <distance>1139.81967842778</distance> 
     <name>Rājkot</name>// 
     <adm1Code>09</adm1Code> 
     <adm1Name>State of Gujarāt</adm1Name> 
     <asciiName>Rajkot</asciiName> 
     <countryCode>IN</countryCode> 
     <featureClass>P</featureClass> 
     <featureCode>PPL</featureCode> 
     <featureId>1258847</featureId> 
     <gtopo30>139</gtopo30> 
     <population>1177362</population> 
     <timezone>Asia/Kolkata</timezone> 
     <lat>22.299999237060547</lat> 
     <lng>70.78333282470703</lng> 
     <placeType>City</placeType> 
     <oneWay>false</oneWay> 
     <length>0.0</length> 
     <google_map_url>http://maps.google.com/maps?f=q&amp;amp;ie=UTF-8&amp;amp;iwloc=addr&amp;amp;om=1&amp;amp;z=12&amp;amp;q=R%C4%81jkot&amp;amp;ll=22.329999237060548,70.78333282470703</google_map_url> 
     <yahoo_map_url>http://maps.yahoo.com/broadband?mag=6&amp;amp;mvt=m&amp;amp;lon=70.78333282470703&amp;amp;lat=22.299999237060547</yahoo_map_url> 
     <country_flag_url>/images/flags/IN.png</country_flag_url> 
    </result> 
</results> 

在上面的XML文件我想將name節點值中的特殊字符轉換爲簡單字符，例如Rājkot包含特殊字符ā，我想將其轉換爲簡單的a字符。

Answer 1

下面的代碼使用SimpleXML擴展來遍歷每個result元素，並通過執行字符集轉換爲UTF-8來修改其中name元素的文本內容。

<?php 
    $results = new SimpleXMLElement('http://services.gisgraphy.com/geoloc/search?lat=22.298569900000000000&lng=70.794301799999970000&radius=7000', NULL, TRUE); 
    foreach($results->result as $result) { 
    $result->name = iconv('utf-8', 'ascii//TRANSLIT', $result->name); 
    } 
    $results->asXML('results_simple.xml'); 
?> 

下面是使用的DOMDocument代替SimpleXML的上面的代碼的替代版本...

<?php 
    $doc = new DOMDocument(); 
    $doc->load('http://services.gisgraphy.com/geoloc/search?lat=22.298569900000000000&lng=70.794301799999970000&radius=7000'); 
    // retrieve all elements with a tag name of "name" 
    $names = $doc->getElementsByTagName('name'); 
    foreach($names as $name) { 
    $name->nodeValue = iconv('utf-8', 'ascii//TRANSLIT', $name->nodeValue); 
    } 
    $doc->save('results_dom.xml');  
?> 

最後，該代碼使用的DOMDocument遞歸通過在XML數據的所有元素/節點遍歷，將轉換應用於每個文本節點的值...

<?php 
    function convertNodeValueChars($node) { 
    if ($node->hasChildNodes()) { 
     foreach ($node->childNodes as $childNode) { 
     if ($childNode->nodeType == XML_TEXT_NODE) { 
      $childNode->nodeValue = iconv('utf-8', 'ascii//TRANSLIT', $childNode->nodeValue); 
     } 
     convertNodeValueChars($childNode);   
     } 
    }  
    } 

    $doc = new DOMDocument(); 
    $doc->load('http://services.gisgraphy.com/geoloc/search?lat=22.298569900000000000&lng=70.794301799999970000&radius=7000'); 
    convertNodeValueChars($doc->documentElement); 
    $doc->save('results_dom.xml');  
?> 

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