PHP Input Database garbled solution ideas

PHP Input Database garbled
Database encoding is "utf8_bin" field encoding is also "Utf8_bin", PHP into the database input Chinese is always garbled! PHP files are also edited in text and saved as Utf-8, the problem is still not resolved. Here is the code

PHP Code

  
  
  
  
   
  <title>Discuss</title>
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W.H.O.
    
   
     
What are you talking about?
    
   
     
Floor
  
  
    
  
  
      
  
    

   
     
$a
  
   
     
$content
  
   
     
$id
    
  
    

  

  
