First create a new DOMDocument object and set the encoding format.
$dom = newDOMDocument('1.0', 'UTF-8');
$dom->formatOutput= true;
Copy the code
Create nodes and
nodes
<div class="blockcode">
<div id="code_qiv"><ol>
<li>
<li>$rootelement =$dom->createElement("article");</li>
<li>$title =$dom->createElement("title", "PHP Access MySql Database Elementary Article");</li>
</ol></div>
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<p> and then create a <link> node with text content
</p>
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<div id="code_rRR"><ol>
<li>
<li>$link =$dom->createElement("link","http://blog.csdn.net/morewindows/article/details/7102362");</li>
</ol></div>
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<p>also You can generate the <link> node first and then add text content to it.
</p>
<div class="blockcode">
<div id="code_wcK"><ol>
<li>
<li>$link = $dom->createElement("link");</li>
<li>$linktext =$dom->createTextNode('http://blog.csdn.net/morewindows/article/details/7102362 ');</li>
<li>$link->appendChild($linktext);</li>
</ol></div>
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<p> and then add the </p>
<title> and <link> nodes to the nodes
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<div id="code_zKk"><ol>
<li>
<li>$rootelement->appendChild($title);</li>
<li>$rootelement->appendChild($link);</li>
</ol></div>
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</div>
<p>Finally add the node to the DOMDocument object,
</p>
<div class="blockcode">
<div id="code_fY4"><ol>
<li>
<li>$dom->appendChild($rootelement);</li>
</ol></div>
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</div>
<p>A complete XML is generated. Then regenerate the entire XML,
</p>
<div class="blockcode">
<div id="code_O6A"><ol>
<li>
<li>echo $dom->saveXML() ;</li>
</ol></div>
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</div>
<p>saveXML() can also input only part of the XML text, such as echo $dom->saveXML($link); it will only output the <link>node: <link>http://blog.csdn.net/morewindows/article/details/7102362 </p>
<p>The following is a complete example of outputting data content to an XML file in PHP. This example will output a PHP array to an XML file.
</p>
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<div id="code_du9"><ol>
<li>
<li><?php<li>//Output the array into an XML file<li>// by MoreWindows( http://blog.csdn.net/MoreWindows )<li>$article_array = array(<li>"First Article" => array(</li>
<li>"title"=>"Initial PHP Access to MySql Database",</li>
<li>"link"=>"http://blog.csdn.net/morewindows/article/details/7102362"</li>
<li>), </li>
<li>"Part 2" => array(</li>
<li>"title"=>"Intermediate article Smarty technology for PHP access to MySql database",</li>
<li>"link"=>"http://blog.csdn.net/morewindows/article /details/7094642"</li>
<li>),</li>
<li>"Part 3" => array(</li>
<li>"title"=>"Advanced AJAX Technology for PHP to Access MySql Database",</li>
<li>"link"=>"http://blog .csdn.net/morewindows/article/details/7086524"</li>
<li>),</li>
<li>);</li>
<li>$dom = new DOMDocument('1.0', 'UTF-8');</li>
<li>$dom->formatOutput = true;</li>
<li>$rootelement = $dom->createElement("MoreWindows");</li>
<li>foreach ($article_array as $key=>$value)</li>
<li>{</li>
<li>$article = $dom->createElement("article", $key);</li>
<li>$ title = $dom->createElement("title", $value['title']);</li>
<li>$link = $dom->createElement("link", $value['link']);</li>
<li>$article- >appendChild($title);</li>
<li>$article->appendChild($link);</li>
<li>$rootelement->appendChild($article);</li>
<li>}</li>
<li>$dom->appendChild($rootelement);</li>
<li>$filename = "D:test.xml";</li>
<li>echo 'XML file size' . $dom->save($filename) . 'bytes';</li>
<li>?></li>
</ol></div>
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</div>
<p>#----- ---------------
</p>
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<div id="code_LNR"><ol>
<li>
<li><?php<li>//Output the array into an XML file<li>// by MoreWindows( http://blog.csdn.net/MoreWindows )<li>$article_array = array(<li>"First Article" => array(</li>
<li>"title"=>"Initial PHP Access to MySql Database",</li>
<li>"link"=>"http://blog.csdn.net/morewindows/article/details/7102362"</li>
<li>), </li>
<li>"Part 2" => array(</li>
<li>"title"=>"Intermediate article Smarty technology for PHP access to MySql database",</li>
<li>"link"=>"http://blog.csdn.net/morewindows/article /details/7094642"</li>
<li>),</li>
<li>"Part 3" => array(</li>
<li>"title"=>"Advanced AJAX Technology for PHP to Access MySql Database",</li>
<li>"link"=>"http://blog .csdn.net/morewindows/article/details/7086524"</li>
<li>),</li>
<li>);</li>
<li>$dom = new DOMDocument('1.0', 'UTF-8');</li>
<li>$dom->formatOutput = true;</li>
<li>$rootelement = $dom->createElement("MoreWindows");</li>
<li>foreach ($article_array as $key=>$value)</li>
<li>{</li>
<li>$article = $dom->createElement("article", $key);</li>
<li>$ title = $dom->createElement("title", $value['title']);</li>
<li>$link = $dom->createElement("link", $value['link']);</li>
<li>$article- >appendChild($title);</li>
<li>$article->appendChild($link);</li>
<li>$rootelement->appendChild($article);</li>
<li>}</li>
<li>$dom->appendChild($rootelement);</li>
<li>$filename = "D:test.xml";</li>
<li>echo 'XML file size' . $dom->save($filename) . 'bytes';</li>
<li>?></li>
</ol></div>
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</div>
<p>
Running this PHP will generate the test.xml file on the D drive (Win7 + XAMPP + IE9.0 test passed)</p>
<p><u><strong>II. Read XML files </strong></u>
Take reading the D:test.xml generated in the previous article as an example:
</p>
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<div id="code_oek"><ol>
<li>
<li>
<li><p><?php<li>//Read XML file<li>// by MoreWindows( http://blog.csdn.net/MoreWindows )<li>$filename = "D:test.xml ";<li>$article_array = array();</p></li>
<li><p>$dom = new DOMDocument('1.0', 'UTF-8');</li>
<li>$dom->load($filename);< ;/p></li>
<li><p>//Get<article>node</li>
<li>$articles = $dom->getElementsByTagName("article");</li>
<li>echo '<article>Number of nodes' . $articles- >length;</li>
<li>foreach ($articles as $article)</li>
<li>{</li>
<li>$id = $article->getElementsByTagName("id")->item(0)->nodeValue;</li>
<li>$title = $article-> ;getElementsByTagName("title")->item(0)->nodeValue;</li>
<li>$link = $article->getElementsByTagName("link")->item(0)->nodeValue;</li>
<li>$article_array[ $id] = array('title'=>$title, 'link'=>$link);</li>
<li>}</p></li>
<li><p>//Output result</li>
<li>echo "<pre class="brush:php;toolbar:false">"; </li>
<li>var_dump($article_array);</li>
<li>echo "</pre>";</li>
<li>?></p></li>
<li>
</ol></div>
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</div>
<p>#-------------------------- ---
</p>
<div class="blockcode">
<div id="code_PhZ"><ol>
<li>
<li>
<li><p><?php<li>//Read XML file<li>// by MoreWindows( http://blog.csdn.net/MoreWindows )<li>$filename = "D:test.xml ";<li>$article_array = array();</p></li>
<li><p>$dom = new DOMDocument('1.0', 'UTF-8');</li>
<li>$dom->load($filename);< ;/p></li>
<li><p>//Get<article>node</li>
<li>$articles = $dom->getElementsByTagName("article");</li>
<li>echo '<article>Number of nodes' . $articles- >length;</li>
<li>foreach ($articles as $article)</li>
<li>{</li>
<li>$id = $article->getElementsByTagName("id")->item(0)->nodeValue;</li>
<li>$title = $article-> ;getElementsByTagName("title")->item(0)->nodeValue;</li>
<li>$link = $article->getElementsByTagName("link")->item(0)->nodeValue;</li>
<li>$article_array[ $id] = array('title'=>$title, 'link'=>$link);</li>
<li>}</p></li>
<li><p>//Output result</li>
<li>echo "<pre class="brush:php;toolbar:false">"; </li>
<li>var_dump($article_array);</li>
<li>echo "</pre>";</li>
<li>?></p></li>
<li>
</ol></div>
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</div>
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