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SolrQuery::setMltMaxNumTokens() is a method available in the PHP Solr extension for configuring the number of tokens to consider when performing MoreLikeThis queries.

MoreLikeThis (MLT) is a Solr feature that allows you to find documents similar to a given document. In the context of SolrQuery::setMltMaxNumTokens(), tokens refer to individual units of text such as words or phrases.

The setMltMaxNumTokens() method is used to set the maximum number of tokens that Solr will consider when finding similar documents. This parameter helps to control the granularity of the MLT algorithm and affects the quality and relevance of the results.

To use this method, you need to create an instance of the SolrQuery class and then call the setMltMaxNumTokens() method on it, passing the desired maximum number of tokens as a parameter. For example:

php
$query = new SolrQuery();
$query->setMltMaxNumTokens(10);


In this example, the maximum number of tokens considered for the MLT query is set to 10. You can adjust the value according to your specific requirements.

Note that setting this parameter too high may result in lower relevance and less accurate MLT results. It is generally recommended to experiment and fine-tune the value based on your data and use case.