(PECL sphinx >= 0.1.0)
SphinxClient::buildKeywords — Extract keywords from query
public SphinxClient::buildKeywords ( string $query , string $index , bool $hits ) : array
Extracts keywords from query using tokenizer settings for the given index, optionally with per-keyword occurrence statistics.
query
A query to extract keywords from.
index
An index to get tokenizing settings and keyword occurrence statistics from.
hits
A boolean flag to enable/disable keyword statistics generation.
Returns an array of associative arrays with per-keyword information.
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https://www.php.net/manual/en/sphinxclient.buildkeywords.php