GoLang SolrDisMaxQuery::setBoostFunction

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PHP SolrDisMaxQuery::setBoostFunction

PHP original manual for SolrDisMaxQuery::setBoostFunction [ show | php.net ]

SolrDisMaxQuery::setBoostFunction

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SolrDisMaxQuery::setBoostFunction — Sets a Boost Function (bf parameter)

Description

public SolrDisMaxQuery SolrDisMaxQuery::setBoostFunction ( string $function )

Sets Boost Function (bf parameter).

Functions (with optional boosts) that will be included in the user's query to influence the score. Any function supported natively by Solr can be used, along with a boost value. e.g.:

recip(rord(myfield),1,2,3)^1.5

Parameters

function

Return Values

SolrDisMaxQuery

Examples

Example #1 SolrDisMaxQuery::setBoostFunction() example

<?php

$dismaxQuery = new SolrDisMaxQuery('lucene');

$boostRecentDocsFunction = "recip(ms(NOW,mydatefield),3.16e-11,1,1)";
$dismaxQuery->setBoostFunction($boostRecentDocsFunction);

echo $dismaxQuery.PHP_EOL;

?>

The above example will output something similar to:

q=lucene&defType=edismax&bf=recip(ms(NOW,mydatefield),3.16e-11,1,1)

See Also