Issues related to modifying XML file values

Problems with modifying XML file values
I want to change the value of question to 22222, this value is incoming in the foreground, but I do not know how to pass, how should I do? It's best to use the DOMDocument class to manipulate

 

 
  
  
  <title>3</title>
  
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 
       
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