SolrQuery::getHighlightAlternateField
  Returns the highlight field to use as backup or default
  
 
  Description
  
   public string SolrQuery::getHighlightAlternateField
    ([ string $field_override
  ] )
  
  
 
  Parameters
  
   
    - 
     field_override
- 
      
       The name of the field
       
 
 
  Return Values
  
Returns a string on success and NULL if not set.