BenWoodford/query-text-parser

The Query Text Parser library performs search query text parsing in PHP

Query Text Parser

The Query Text Parser library performs search query text parsing.

This allows you to write a search query in free form text and parse it into a machine-readable parsing tree.

The library is fully unit-tested.

Features

• AND/OR operators
• Grouped queries using paranthesis -- i.e. (Denver AND Boston) OR Miami
• Multi-word search queries using quotes -- i.e. "San Francisco" AND Chicago

Example usage

$parser = new Engage\QueryTextParser\Parser;
$result = $parser->parse('(Chicago AND Houston) OR Phoenix');
print_r($result);

Output

Engage\QueryTextParser\Data\Group Object
(
    [type] => OR
    [children] => Array
        (
            [0] => Engage\QueryTextParser\Data\Group Object
                (
                    [type] => AND
                    [children] => Array
                        (
                            [0] => Engage\QueryTextParser\Data\Partial Object
                                (
                                    [text] => Chicago
                                    [negate] =>
                                )

                            [1] => Engage\QueryTextParser\Data\Partial Object
                                (
                                    [text] => Houston
                                    [negate] =>
                                )

                        )

                )

            [1] => Engage\QueryTextParser\Data\Partial Object
                (
                    [text] => Phoenix
                    [negate] =>
                )

        )

)

TODO

• Support negating operator (i.e. NOT)