(PECL solr >= 0.9.2)
  	
    
      
      Removes a field from the document
    
    
      
      public bool SolrDocument::__unset ( string $fieldName )
    
    
    
    Removes a field from the document when the field is access as an object property.
Parameters: 
  
      
      
      	fieldName
    	
 
    	The name of the field.
Returns: 
     Returns TRUE on success or FALSE on failure. 
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