return the highlightquery (hl.q)

# SolrQuery::getHighlightQuery

(PECL solr >= 2.7.0)

SolrQuery::getHighlightQuery — return the highlightquery (hl.q)

### 说明

public function SolrQuery::getHighlightQuery(): string

Returns previously set highlight query. This parameter allows you to highlight different terms or fields than those being used to retrieve documents.

### 参数

此函数没有参数。

### 返回值

Returns the current SolrHighlightQuery string, or null if not set.

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