simplexmlelement-php How to get the value of simplexml_load_string

Problem

/** * Returns a node value for a string by node path * $res _data--xml format string * Return node parameter */function getdataforxml ($res _data, $node) {$xml = Simplexml_lo    Ad_string ($res _data);    $result = $xml->xpath ($node);    while (list (, $node) = each ($result)) {return $node; }}$_post = Array (' service ' = ' alipay.wap.trade.create.direct ', ' sign ' = = ' db56d137c71f591abd58b41 d5da5f920 ', ' sec_id ' = ' MD5 ', ' V ' = ' 1.0 ', ' notify_data ' = '
  
    
    
      1 
     
    
      recharge 
     
    
      2014123069117121 
     
    
      default@gmail.com  
     
       2014-12-30 22:12:32 
      
     
       trade_s
  Tatus_sync 
      
     
       1 
      
     
       1412302289443 
      
     
       2014-12-30 22:12:56 
      
     
       2088211987518229 
      
     
       trade_finished  
      
        N 
       
      
        0.11 
       
      
        2014-12-30 22:12:56 
       
      
        zfb@gmail.cn 
       
      
        2014-12-30 22:12:56 
      
 
      
        0.11 
       
      
        2088102193791211 
       
      
        8f3d3703e293b95d8de26cbd51d74fe116 
       
      
        N 
       
     
    
   
  ', '); $out _trade_no = Getdataforxml ($_post[' notify_data '), '/notify/out_trade_no '); Var_dump ($out _trade_no = = ' 1412302289443 ')); Truevar_dump ($out _trade_no);//object (SimpleXMLElement) [2]

How can I get the value of $out _trade_no

Reply content:

Problem

/** * Returns a node value for a string by node path * $res _data--xml format string * Return node parameter */function getdataforxml ($res _data, $node) {$xml = Simplexml_lo    Ad_string ($res _data);    $result = $xml->xpath ($node);    while (list (, $node) = each ($result)) {return $node; }}$_post = Array (' service ' = ' alipay.wap.trade.create.direct ', ' sign ' = = ' db56d137c71f591abd58b41 d5da5f920 ', ' sec_id ' = ' MD5 ', ' V ' = ' 1.0 ', ' notify_data ' = '
  
    
    
      1 
     
    
      recharge 
     
    
      2014123069117121 
     
    
      default@gmail.com  
     
       2014-12-30 22:12:32 
      
     
       trade_s
  Tatus_sync 
      
     
       1 
      
     
       1412302289443 
      
     
       2014-12-30 22:12:56 
      
     
       2088211987518229 
      
     
       trade_finished  
      
        N 
       
      
        0.11 
       
      
        2014-12-30 22:12:56 
       
      
        zfb@gmail.cn 
       
      
        2014-12-30 22:12:56 
      
 
      
        0.11 
       
      
        2088102193791211 
       
      
        8f3d3703e293b95d8de26cbd51d74fe116 
       
      
        N 
       
     
    
   
  ', '); $out _trade_no = Getdataforxml ($_post[' notify_data '), '/notify/out_trade_no '); Var_dump ($out _trade_no = = ' 1412302289443 ')); Truevar_dump ($out _trade_no);//object (SimpleXMLElement) [2]

How can I get the value of $out _trade_no

SimpleXML Parse is the Simpleelement object, need type conversion, such as the way the son said the method can be

$doc = new DOMDocument();$doc->loadXML($_POST['notify_data']);$doc->getElementsByTagName( "out_trade_no" )->item(0)->nodeValue;

