SolrQuery
在线手册：中文 英文
PHP手册

SolrQuery::setMlt

(PECL solr >= 0.9.2)

SolrQuery::setMlt — Enables or disables moreLikeThis

说明

public SolrQuery SolrQuery::setMlt ( bool $flag )

Enables or disables moreLikeThis

参数

flag

TRUE enables it and FALSE turns it off.

返回值

Returns the current SolrQuery object, if the return value is used.

SolrQuery
在线手册：中文 英文
PHP手册
PHP手册 - N: Enables or disables moreLikeThis

用户评论:

duerra at nospam dot yahoo dot com (19-Nov-2010 12:34)

Note that currently, if enabling MLT results in Solr, you also need to set the MinDocFrequency and MinTermFrequency, or you will not get any results back.

<?php
$client = new SolrClient($params);
$query = new SolrQuery();
$query->setMlt(true);
$query->addField('*,score');
$query->setMltMinDocFrequency(1);
$query->setMltMinTermFrequency(1);

//What the MLT documents will be based off of
$query->setQuery('id:doc_10');
$result = $client->query($query);
$result->setParseMode(SolrQueryResponse::PARSE_SOLR_OBJ);
$response = $result->getResponse();

//MLT returns an array of documents based off of the id field value of EACH result returned in the primary search, with an array of MLT documents for each main result document returned

//Presuming the unique field in our schema above is "id" and I know that I will only be getting one document returned in the primary result set, then:
$similarDocs = $response->moreLikeThis->doc_10->docs;

?>

Hope this helps.