PHP通过DOM创建XML文档

最近用zendframework框架做项目，要把数据库中的数据拿出来生成XML文档。在此大概记录一下过程：

xml文件：

<?xml version="1.0" encoding="UTF-8"?>
<data>
    <project id="1"><![CDATA[Docker JCP1]]></project>
    <project id="2"><![CDATA[Docker JCP2]]></project>
    <project id="3"><![CDATA[Docker JCP3]]></project>
    <project id="4"><![CDATA[Docker JCP4]]></project>
    <project id="5"><![CDATA[Docker JCP5]]></project>
    <project id="6"><![CDATA[Docker JCP6]]></project>
</data>

1.建testController.php，添加function.

public function projectAction(){
 // XML-related routine
 //$list 指xml中的数据数组。
        $dom = new DOMDocument('1.0', 'utf-8');
        // create root element
        $root = $dom->createElement("data");
        $dom->appendChild($root);

        //project name xml list
        foreach ($list as $project_item){
            // create child element
            $projectname = $dom->createElement('project');
            $root->appendChild($projectname);

            // create CDATA section
            $cdata = $dom->createCDATASection($project_item->name);
            $projectname->appendChild($cdata);

            $id = $dom->createAttribute("id");
            $projectname->appendChild($id);

            // create attribute value node
            $idValue = $dom->createTextNode($project_item->project_id);
            $id->appendChild($idValue);
        }
        $output = $dom->saveXML();

        // Setting up headers and body
        $this->_response->setHeader('Content-Type', 'text/xml; charset=utf-8')
                ->setBody($output);
        $this->_helper->layout->disableLayout();
}

这样就可以在页面上输出xml了。

如果要把xml保存，用$dom->save("filename.xml");