A question about XML parsing. thank you.

Thank you for your XMLcode & lt; alipay & gt; & lt; is_success & gt; T & lt;/is_success & gt; & lt; request & gt; & lt; paramname = & quot; partner & quot; & gt; ask you a question about XML parsing. thank you.

XML code

     
  
   
T
    
      
   2088002007 ***    
   Daily    
   EMS    
   2008040902 ***    
   20880020070 ***    
   Http: // 10.2.5.100/api/apireceive/returnSuccess. php      
   3455 **      
   Send_goods_confirm_by_platform      
   UTF-8      
   EMS      
   Http: // 10.2.5.100/api/returnResultList. php    
    
      
         
    
     
2088002007301423 ***
          
    
     
[REFUND, CONFIRM_GOODS]
          
    
     
***
          
    
     
PRIVATE_ACCOUNT
          
    
     
2088002007 ****
          
    
     
Interface/digi ***
          
    
     
2008-04-09 16:10:25
          
    
     
156
          
    
     
1
          
    
     
2008-04-10 14:35:25
          
    
     
B
          
    
     
123455666 ***
          
    
     
2088002007 **** 6
          
    
     
208800200730 **** 156
          
    
     
[EXTEND_TIMEOUT]
          
    
     
Song_xia ** hoo.com.cn
          
    
     
PRIVATE ** OUNT
          
    
     
208800*301410
          
    
     
0.00
          
    
     
0.0
          
    
     
F
          
    
     
2.00
          
    
     
INST_P ** ER
          
    
     
2008040*81748
          
    
     
WAIT_BUYER_CONFIRM_GOODS
          
    
     
S
        
     
    
  
   
Eb07c7407baf ***** 0804751a21c1e
    
  
   
MD5
  

I want to get the value of the is_success node under alipay.
This is the code I wrote.
$ Message = $ doc-> getElementsByTagName ("alipay")-> item (0)-> nodeValue;
However, it seems that the obtained value is incorrect. Ask how to obtain this value. Thank you.

------ Solution --------------------
$ Message = $ doc-> getElementsByTagName ("is_success")-> item (0)-> nodeValue;