(PECL solr >= 0.9.2)
Returns the highlight field to use as backup or default
public string SolrQuery::getHighlightAlternateField ([ string $field_override ] )
Returns the highlight field to use as backup or default. It accepts an optional override.
Parameters:
field_override
The name of the field
Returns:
Returns a string on success and NULL
if not set.
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