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# Supported queries Zend_Search_Lucene and Java Lucene support a powerful query language. It allows searching for individual terms, phrases, ranges of terms; using wildcards and fuzzy search; combining queries using boolean operators; and so on. A detailed query language description can be found in the Zend_Search_Lucene component documentation. What follows are examples of some common query types and strategies. Example #1 Querying for a single word hello Searches for the word "hello" through all document fields. Note: Default search field Important note! Java Lucene searches only through the "contents" field by default, but Zend_Search_Lucene searches through all fields. This behavior can be modified using the Zend_Search_Lucene::setDefaultSearchField($fieldName) method. Example #2 Querying for multiple words hello dolly Searches for two words. Both words are optional; at least one of them must be present in the result. Example #3 Requiring words in a query +hello dolly Searches for two words; "hello" is required, "dolly" is optional. Example #4 Prohibiting words in queried documents +hello -dolly Searches for two words; "hello" is required, 'dolly' is prohibited. In other words, if the document matches "hello", but contains the word "dolly", it will not be returned in the set of matches. Example #5 Querying for phrases "hello dolly" Searches for the phrase "hello dolly"; a document only matches if that exact string is present. Example #6 Querying against specific fields title:"The Right Way" AND text:go Searches for the phrase "The Right Way" within the title field and the word "go" within the text field. Example #7 Querying against specific fields as well as the entire document title:"The Right Way" AND go Searches for the phrase "The Right Way" within the title field and the word "go" word appearing in any field of the document. Example #8 Querying against specific fields as well as the entire document (alternate) title:Do it right Searches for the word "Do" within the title field and the words "it" and "right" words through all fields; any single one matching will result in a document match. Example #9 Querying with the wildcard "?" te?t Search for words matching the pattern "te?t", where "?" is any single character. Example #10 Querying with the wildcard "*" test* Search for words matching the pattern "test*", where "*" is any sequence of zero or more characters. Example #11 Querying for an inclusive range of terms mod_date:[20020101 TO 20030101] Search for the range of terms (inclusive). Example #12 Querying for an exclusive range of terms title:{Aida to Carmen} Search for the range of terms (exclusive). Example #13 Fuzzy searches roam~ Fuzzy search for the word "roam". Example #14 Boolean searches (framework OR library) AND php Boolean query. All supported queries can be constructed through Zend_Search_Lucene's query construction API. Moreover, query parsing and query constructing may be combined: Example #15 Combining parsed and constructed queries $userQuery = Zend_Search_Lucene_Search_QueryParser::parse($queryStr); $query = new Zend_Search_Lucene_Search_Query_Boolean(); $query->addSubquery($userQuery, true /* required */); $query->addSubquery($constructedQuery, true /* required */);
Searching | Getting Started with Zend_Search_Lucene Programmer's Reference Guide | Search result pagination