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Home Backend Development PHP Tutorial xml转json,怎么筛选数据?

xml转json,怎么筛选数据?

Jun 23, 2016 pm 02:19 PM
xml to json

JSON XML

下边的xml,想转为json
但P节点下只需要这两个节点的数据,其他数据不需要。
如果直接用json_encode转出来,是所有的数据
请问怎么能转为json,但只要的数据,怎么弄?

例如
{"PN":"\u7b2c\u4e00\u5468\u64ad\u5267\u573a\uff1a\u8ffd\u9c7c\u4f20\u5947 31","PT":"2013-08-19 22:01:00"}

-------xml---------


  


    110171675
    张三
    2013-08-19 00:02:00
    46
    

24
    74750
    0
    2013-08-19 00:02:00
    AM
    
  
  


    110171676
    我是大美人
    2013-08-19 01:15:00
    46
    

24
    74501
    0
    2013-08-19 01:15:00
    AM
    
  
  


    110171677
    李四
    2013-08-19 02:09:00
    46
    

24
    64519
    71411
    2013-08-19 02:09:00
    AM
    
    


回复讨论(解决方案)

$string = <<<XML<Root>  <P>    <id>110171675</id>    <PN>张三</PN>    <PT>2013-08-19 00:02:00</PT>    <Cd>46</Cd>    <Td>24</Td>    <Fd>74750</Fd>    <Fd2>0</Fd2>    <cPT>2013-08-19 00:02:00</cPT>    <AMPM>AM</AMPM>    <ls/>  </P>  <P>    <id>110171676</id>    <PN>我是大美人</PN>    <PT>2013-08-19 01:15:00</PT>    <Cd>46</Cd>    <Td>24</Td>    <Fd>74501</Fd>    <Fd2>0</Fd2>    <cPT>2013-08-19 01:15:00</cPT>    <AMPM>AM</AMPM>    <ls/>  </P>  <P>    <id>110171677</id>    <PN>李四</PN>    <PT>2013-08-19 02:09:00</PT>    <Cd>46</Cd>    <Td>24</Td>    <Fd>64519</Fd>    <Fd2>71411</Fd2>    <cPT>2013-08-19 02:09:00</cPT>    <AMPM>AM</AMPM>    <ls/>  </P>  </Root>XML;$xml = simplexml_load_string($string);foreach($xml->P as $item){     $item=(array)$item;    $arr[]=array('PN'=>$item['PN'],'PT'=>$item['PT']);}echo json_encode($arr);
Copy after login

[{"PN":"\u5f20\u4e09","PT":"2013-08-19 00:02:00"},{"PN":"\u6211\u662f\u5927\u7f8e\u4eba","PT":"2013-08-19 01:15:00"},{"PN":"\u674e\u56db","PT":"2013-08-19 02:09:00"}]

$xml =<<< XML<Root>  <P>    <id>110171675</id>    <PN>张三</PN>    <PT>2013-08-19 00:02:00</PT>    <Cd>46</Cd>    <Td>24</Td>    <Fd>74750</Fd>    <Fd2>0</Fd2>    <cPT>2013-08-19 00:02:00</cPT>    <AMPM>AM</AMPM>    <ls/>  </P>  <P>    <id>110171676</id>    <PN>我是大美人</PN>    <PT>2013-08-19 01:15:00</PT>    <Cd>46</Cd>    <Td>24</Td>    <Fd>74501</Fd>    <Fd2>0</Fd2>    <cPT>2013-08-19 01:15:00</cPT>    <AMPM>AM</AMPM>    <ls/>  </P>  <P>    <id>110171677</id>    <PN>李四</PN>    <PT>2013-08-19 02:09:00</PT>    <Cd>46</Cd>    <Td>24</Td>    <Fd>64519</Fd>    <Fd2>71411</Fd2>    <cPT>2013-08-19 02:09:00</cPT>    <AMPM>AM</AMPM>    <ls/>  </P>  </Root>XML;$sm = simplexml_load_string($xml);foreach($sm->P as $item) {  $r[] = array('PN' => strval($item->PN), 'PT' => strval($item->PT));}echo json_encode($r);
Copy after login
[{"PN":"\u5f20\u4e09","PT":"2013-08-19 00:02:00"},{"PN":"\u6211\u662f\u5927\u7f8e\u4eba","PT":"2013-08-19 01:15:00"},{"PN":"\u674e\u56db","PT":"2013-08-19 02:09:00"}]

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