Questions about modifying xml file values

To modify the xml file value, I want to change the value of question to 22222. this value is passed in at the front end, but I don't know how to transfer it. how should I do it? It is best to use the DOMDocument class to operate & lt ;? Xml & nbsp; version = "1.0" & nbsp; encodin
I want to change the value of question to 22222. this value is passed in at the front end, but I don't know how to transfer it. what should I do? It is best to use the DOMDocument class for operations.

 

 
  
  
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  admin
  
  
  
   
    
   
    
      
    
     111111
    
    
      
    
        
     
      A
     
        
     
      11
     
      
    
      
    
        
     
      B
     
        
     
      22
     
      
    
      
    
        
     
      C
     
        
     
      33
     
      
    
      
    
        
     
      D
     
        
     
      44
     
      
    
    
   
   
    
   
    
      
    
     22222
    
    
      
    
        
     
      A
     
        
     
      22
     
      
    
      
    
        
     
      B
     
        
     
      11
     
      
    
      
    
        
     
      C
     
        
     
      44
     
      
    
      
    
        
     
      D
     
        
     
      33
     
      
    
    
   
   
    
   
    
      
    
     33333
    
    
      
    
        
     
      A
     
        
     
      444
     
      
    
      
    
        
     
      B
     
        
     
      222
     
      
    
      
    
        
     
      C
     
        
     
      333
     
      
    
      
    
        
     
      D
     
        
     
      2111