使用基于PHP XML的Web API的iOS应用程序

问题描述：

I am fairly new to iOS development and trying make a simple app which will communicate with PHP API. Data request and response will be in XML format only..

this is my php method for login,

function login()
{
    $mainframe = JFactory::getApplication();

    $xmlcnt = array();

    if (!isset($HTTP_RAW_POST_DATA))
    {
        $HTTP_RAW_POST_DATA = file_get_contents("php://input");
    }

    if(empty($HTTP_RAW_POST_DATA))
    {
        $xmlcnt['code'] = "2";
        return $xmlcnt;
    }

    $doc = new DOMDocument();

    $doc->loadXML( $HTTP_RAW_POST_DATA);

    $login_data = $doc->getElementsByTagName( "data" );

    foreach( $login_data as $login )
    {
        $user_nm = $login->getElementsByTagName( "username" );
        $user_nm = $user_nm->item(0)->nodeValue;

        $password = $login->getElementsByTagName( "password" );
        $password = $password->item(0)->nodeValue;

    } ......

and the xmldata look like this "<data><username>testuser</username><password>password</password></data>"

i want to understand how/what should i use in xcode objective-c to send and recieve XML efficiently.

Thank you verymuch

我对iOS开发很新，并尝试制作一个与PHP API通信的简单应用程序。数据请求和响应只能是XML格式。 p>

这是我登录的php方法， p>

  function login（）\  n {
 $ mainframe = JFactory :: getApplication（）; 
 
 $ xmlcnt = array（）; 
 
 if if（！isset（$ HTTP_RAW_POST_DATA））
 {
 $ HTTP_RAW_POST_DATA = file_get_contents（“php  ：//输入“）; 
} 
 
 if（empty（$ HTTP_RAW_POST_DATA））
 {
 $ xmlcnt ['code'] =”2“; 
返回$ xmlcnt; 
} 
  
 $ doc = new DOMDocument（）; 
 
 $ doc-＆gt; loadXML（$ HTTP_RAW_POST_DATA）; 
 
 $ login_data = $ doc-＆gt; getElementsByTagName（“data”）; 
 
 foreach（  $ login_data as $ login）
 {
 $ user_nm = $ login-＆gt; getElementsByTagName（“username”）; 
 $ user_nm = $ user_nm-＆gt; item（0） - ＆gt; nodeValue; 
 
 $  password = $ login-＆gt; getElementsByTagName（“password”）; 
 $ password = $ password-＆gt; item（0） - ＆gt; nodeValue; 
 
} ...... 
  code>   pre> 
 
 并且xmldata看起来像这样“＆lt; data＆gt;＆lt; username＆gt; testuser＆lt; / usernam  e＆gt;＆lt;密码＆gt;密码＆lt; /密码＆gt;＆lt; / data＆gt;  code>“ p> 
 
 
我想了解我应该如何/在xcode objective-c中使用什么来发送和 有效地接收XML。   p> 
 
 

非常感谢 p> 
  div>

答

you can check an XML parser for that, here some examples: http://cocoawithlove.com/2011/05/classes-for-fetching-and-parsing-xml-or.html

答

If you are asking which xml parser to use, Writing your own parser should help a lot in performance. We usually add data compression to keep size of data transfer low. We use simple zip library and also do encryption is needed. Zipping will help a lot if the data size is large

使用基于PHP XML的Web API的iOS应用程序

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