PHP返回XML与JSON数据

XML

---

包含四种方法，分别为拼接、PHP拼接（DOM、AppendChild..）、SimpleXML、XMLWriter

//return xml format data
public function read_get_xml(){
//
	header("Content-type:text/xml");
	$article="<xml version='1.0' encoding='UTF-8'?>\n";
	$article.="<article>\n";
	$article.="<id>1</id>"\n;
	$article.="<content>mycontent</content>\n";
	$article.="<author>valentine</author>\n";
	$article.="<time>2014.06.05</time>\n";
	$article.="<source>cnblogs</source>\n";
	$article.="<article>xml_encode</article>\n";
	$article.="<pageurl>http://cnblogs.com</pageurl>\n";
	$article.="</article>\n";
	//
	echo $article;
	exit;
}

JSON

---

使用Json_Encode方法

//return json format data
public function read_get_json(){
	//use table tb_smartphone
	$article=M('tb_smartphone');
	//sql
	$articleRes=$article->limit(10)
	->getField('id,content,author,time,source,title,pageurl');
	//data
	$this->response($articleRes,'json');
	return json_encode($articleRes);
}

注：此方法在ThinkPHP框架实现