Implementation code for php to operate XML, read data and write data, phpxml_PHP tutorial

PHP implementation code for operating XML, reading data and writing data, phpxml

xml file

<&#63;xml version="1.0" encoding="utf-8"&#63;>
 
<vip>
 <id>23</id>
 <username>开心的路飞</username>
 <sex>男</sex>
 <face>face/43.jpg</face>
 <email>123@qq.com</email>
 <qq>1212121212</qq> 
</vip>

PHP parses XML to get the value in the tag

/*
 * _get_xml 获取的XML文件
* @access public 表示函数对外公开
* @param $_xmlfile xml文件
* $_html 从XML中取出的数据数组
* */
function _get_xml($_xmlfile){
  $_html = array();
  if(file_exists($_xmlfile)){
    $_xml = file_get_contents($_xmlfile);
    preg_match_all('/<vip>(.*)<\/vip>/', $_xml,$_dom);    
    foreach($_dom[1] as $_value){
      preg_match_all('/<id>(.*)<\/id>/', $_value,$_id);
      preg_match_all('/<username>(.*)<\/username>/', $_value,$_username);
      preg_match_all('/<sex>(.*)<\/sex>/', $_value,$_sex);
      preg_match_all('/<face>(.*)<\/face>/', $_value,$_face);
      preg_match_all('/<email>(.*)<\/email>/', $_value,$_email);
      preg_match_all('/<qq>(.*)<\/qq>/', $_value,$_qq);
      $_html['id'] = $_id[1][0];
      $_html['username'] = $_username[1][0];
      $_html['sex'] = $_sex[1][0];
      $_html['face'] = $_face[1][0];
      $_html['email'] = $_email[1][0];
      $_html['qq'] = $_qq[1][0];
    }
  }else{
    _alert_back("文件不存在");
  }
  return $_html;
}

php writes data to XML file

/*
 * _set_xml将信息写入XML文件
* @access public 表示函数对外公开
* @param $_xmlfile xml文件
* @param $_clean 要写入的信息的数组
* */
function _set_xml($_xmlfile,$_clean){
  $_fp = @fopen('newuser.xml','w');
  if(!$_fp){
    exit('系统错误，文件不存在！');
  }
  flock($_fp,LOCK_EX);
  $_string = "<&#63;xml version=\"1.0\" encoding=\"utf-8\"&#63;>\r\t";
  fwrite($_fp, $_string,strlen($_string));
  $_string = "<vip>\r\t";
  fwrite($_fp, $_string,strlen($_string));
  $_string = "\t<id>{$_clean['id']}</id>\r\t";
  fwrite($_fp, $_string,strlen($_string));
  $_string = "\t<username>{$_clean['username']}</username>\r\t";
  fwrite($_fp, $_string,strlen($_string));
  $_string = "\t<sex>{$_clean['sex']}</sex>\r\t";
  fwrite($_fp, $_string,strlen($_string));
  $_string = "\t<face>{$_clean['face']}</face>\r\t";
  fwrite($_fp, $_string,strlen($_string));
  $_string = "\t<email>{$_clean['email']}</email>\r\t";
  fwrite($_fp, $_string,strlen($_string));
  $_string = "\t<qq>{$_clean['url']}</qq>\r\t";
  fwrite($_fp, $_string,strlen($_string));
  $_string = "</vip>";
  fwrite($_fp, $_string,strlen($_string));
  flock($_fp,LOCK_UN);
  fclose($_fp);
}

Use php to operate xml, read data, and insert data

I hope some information found on the Internet can help you introduce the related functions of xml reading in php: Quote:---------------------- -------------------------------------------------- --------Object XML parsing function description
Element xml_set_element_handler() The beginning and end of the element
Character data xml_set_character_data_handler() The beginning of character data
External entity xml_set_external_entity_ref_handler() The external entity appears
Unparsed external entity xml_set_unparsed_entity_decl_handler() The occurrence of unresolved external entity
The occurrence of processing instruction xml_set_processing_instruction_handler() The occurrence of processing instruction
The occurrence of notation declaration xml_set_notation_decl_handler() The occurrence of notation declaration
Default xml_set_default_handler() Others are not specified Handling function events------------------------------------------------- ---------------------------------- Let me give you a small example to read using the parser function. xml data: 1cfb7a2253060b7a00148655984f2dde
81c5485f9ce917969e8ea9b70cd28180
9a1d54c171cdd27cca2e150fb39ed1f5";

//If there is dynamic information here, call it as needed

echo"b5509dc0d1b79f9bc35af4f3772efab6
< ;items>";

//Loop your image data here
$data = ??
while( $data ) {
echo "643ee62bf3845d6d5b3f158d4a8bd316";
}

echo 'ee6ed0cd880a07e7af02e304672b38ed

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