pimcore / search-query-parser
Parses a simplified SQL-like query string into a syntax tree which can be used to build search queries
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Requires
- php: >=7.0
- nikic/phlexy: ^0.1.0
Requires (Dev)
- phpunit/phpunit: ^6.1
- symfony/var-dumper: ^3.2
Suggests
- pimcore/pimcore: If using it in combination with Pimcore and CMF
- zendframework/zendframework1: If using the Zend_Db query builder
README
A basic search query parsing library which can be used to transform free-text searches
into SQL (or other) queries. The analyzed search query can be used to build complex
(SQL) queries, searching for a term in multiple fields. Take a look at the
Zend_Db
end to end test an example or have a
look into examples/ for working examples.
Syntax
Search terms can be AND/OR combined, negated, grouped with parentheses and modified to fuzzy exact search with the following syntax:
foo
foo* AND bar
*foo* OR *bar*
*foo* OR !*bar*
*foo* AND bar
foo OR (bar AND baz)
Modifiers
Fuzzy search: *<term>*
Negation: !<term> !(<query>) !*<fuzzy-term>
Usage
<?php require_once __DIR__ . '/../vendor/autoload.php'; $input = 'doe AND 1212 AND !foo OR (!(am*ya AND 12) blah) OR baz'; // complex query $input = '*john* !502* AND foobar'; // LIKE %john% AND NOT LIKE 502% AND = foobar // tokenizes query string $lexer = new \SearchQueryParser\Lexer(); // contains array of extracted tokens $tokens = $lexer->lex($input); dump($tokens); // parses tokens into an abstract query $parser = new \SearchQueryParser\Parser(); $query = $parser->parse($tokens); dump($query); // use the Zend_Db query builder to transform the Query into conditions $db = new Zend_Db_Adapter_Pdo_Sqlite(array( 'dbname' => ':memory:' )); // dummy query $select = $db ->select() ->from('foo'); // build conditions for every passed field $queryBuilder = new \SearchQueryParser\QueryBuilder\ZendDbSelect([ 'foo', 'bar' ]); $queryBuilder->processQuery($select, $query); dump($select->__toString());
Using the facade
There's a facade class which can be called if you want to use the standard lexer/parser.
<?php require_once __DIR__ . '/../vendor/autoload.php'; $input = 'foo !bar *doe*'; // returns an abstract query dump(\SearchQueryParser\SearchQueryParser::parseQuery($input));
Tests
There are a couple of simple end-to-end tests checking the output for a defined input. Just run vendor/bin/phpunit
from
the project root.