SolrCollapseFunction
PHP Manual

SolrCollapseFunction::__toString

(PECL solr >= 2.2.0)

SolrCollapseFunction::__toStringReturns a string representing the constructed collapse function

说明

public string SolrCollapseFunction::__toString ( void )

Returns a string representing the constructed collapse function

参数

此函数没有参数。

返回值


SolrCollapseFunction
PHP Manual