hash_update_file
  Pump data into an active hashing context from a file
  
 
  Description
  
   bool hash_update_file(HashContext $context, string $filename, resourcenull $stream_context = null)
  
 
  Parameters
  
   
    
     - 
context 
     - 
      
       Hashing context returned by hash_init.
      
      
    
    
     - 
filename 
     - 
      
       URL describing location of file to be hashed; Supports fopen wrappers.
      
      
    
    
     - 
stream_context 
     - 
      
       Stream context as returned by stream_context_create.
      
      
    
   
  
  
 
  Return Values
  
   Returns true on success or false on failure.
  
  
 
 
 
  See Also
  
   
    - hash_init
 
    - hash_update
 
    - hash_update_stream
 
    - hash_final
 
    - hash_file