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Yii2 输出xml格式数据的方法,yii2输出xml格式
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Yii2 输出xml格式数据的方法,yii2输出xml格式

Jun 13, 2016 am 08:40 AM
xml yii2 Serialization data Format

Yii2 输出xml格式数据的方法,yii2输出xml格式

php中对xml的处理,虽然说实际开发中目前用的少了,但是难免会用到,用到的时候呢,总结起来还是稍稍有那么一丁点的麻烦。

我们来看看yii2中是怎么对xml进行处理的。会超乎你想象的简单哦。

我们以输出xml格式的数据为例。

既然是输出,必然就涉及到web请求与响应了,不熟悉的可以先去了解下HTTP协议。

yii2中支持以下几种返回格式,均可自定义配置。

HTML: implemented by yii\web\HtmlResponseFormatter.
XML: implemented by yii\web\XmlResponseFormatter.
JSON: implemented by yii\web\JsonResponseFormatter.
JSONP: implemented by yii\web\JsonResponseFormatter.
RAW: use this format if you want to send the response directly without applying any formatting.

我们就是冲着XML来的。

先来看一种简单的输出xml格式数据

public function actionTest () { 
\Yii::$app->response->format = \yii\web\Response::FORMAT_XML; 
return [ 
'message' => 'hello world', 
'code' => 100, 
]; 
}
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这里我们指定了reponse响应格式 FORMAT_XML,然后访问这个test方法就可以看到页面上输出了xml类型的数据

<response> 
<message>hello world</message> 
<code>100</code> 
</response> 
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上面提到的方式未免有点麻烦,麻烦在配置多项的时候就不是那么方便了,我们来自己创建reponse对象试一试

public function actionTest () { 
return \Yii::createObject([ 
'class' => 'yii\web\Response', 
'format' => \yii\web\Response::FORMAT_XML, 
'formatters' => [ 
\yii\web\Response::FORMAT_XML => [ 
'class' => 'yii\web\XmlResponseFormatter', 
'rootTag' => 'urlset', //根节点 
'itemTag' => 'url', //单元 
], 
], 
'data' => [ //要输出的数据 
[ 
'loc' => 'http://********', 
], 
], 
]); 
}
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为了方便接下来的说明,上面一并做了配置,可以看到我们配置了响应的格式format,单独做了些配置,包括配置根节点rootTag,单元itemTag以及数据类型。有同学注意到了,这里其实我们很简单的就实现了一个站点地图的xml格式输出。是的,就是这么简单。

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