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Swish-e bindings
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CLXI. Swish-e bindings

Introduction

The swish extension provides the bindings for Swish-e API. Swish-e stands for "Simple Web Indexing System for Humans - Enhanced" and is an open source system for indexing and search. Swish-e itself is licensed under GPL license, but uses a clause that allows applications to link against the library if every copy of the combined work is accompanied by the URL to Swish-e source code. Here it is: http://swish-e.org.

Warning

This extension is EXPERIMENTAL. The behaviour of this extension -- including the names of its functions and anything else documented about this extension -- may change without notice in a future release of PHP. Use this extension at your own risk.

Requirements

PECL/swish requires PHP 5.1.3 or newer.

Installation

Information for installing this PECL extension may be found in the manual chapter titled Installation of PECL extensions. Additional information such as new releases, downloads, source files, maintainer information, and a CHANGELOG, can be located here: http://pecl.php.net/package/swish.

Runtime Configuration

This extension has no configuration directives defined in php.ini.

Examples

Example 1. Basic search query

<?php

try {

    $swish = new Swish("index.swish-e");
    $results = $swish->query("test OR text");

    echo "Found ", $results->hits, " results\n";
    while ($result = $results->nextResult()) {
        var_dump($result);
        break; //break after the first result
    }

} catch (SwishException $e) {
    echo "Error: ", $e->getMessage(), "\n";
}

?>

The above example will output something similar to:

Found 9 results
object(SwishResult)#3 (8) {
  ["swishreccount"]=>
  int(1)
  ["swishrank"]=>
  int(1000)
  ["swishfilenum"]=>
  int(10)
  ["swishdbfile"]=>
  string(13) "index.swish-e"
  ["swishdocpath"]=>
  string(23) "README.SUBMITTING_PATCH"
  ["swishtitle"]=>
  NULL
  ["swishdocsize"]=>
  int(4557)
  ["swishlastmodified"]=>
  int(1072136752)
}

Predefined Constants

The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.

Swish::META_TYPE_UNDEF (integer)

Swish::META_TYPE_STRING (integer)

Swish::META_TYPE_ULONG (integer)

Swish::META_TYPE_DATE (integer)

Swish::IN_FILE_BIT (integer)

Swish::IN_TITLE_BIT (integer)

Swish::IN_HEAD_BIT (integer)

Swish::IN_BODY_BIT (integer)

Swish::IN_COMMENTS_BIT (integer)

Swish::IN_HEADER_BIT (integer)

Swish::IN_EMPHASIZED_BIT (integer)

Swish::IN_META_BIT (integer)

Swish::IN_FILE (integer)

Swish::IN_TITLE (integer)

Swish::IN_HEAD (integer)

Swish::IN_BODY (integer)

Swish::IN_COMMENTS (integer)

Swish::IN_HEADER (integer)

Swish::IN_EMPHASIZED (integer)

Swish::IN_META (integer)

Swish::IN_ALL (integer)

Predefined Classes

Predefined Classes

Swish

Properties

  • indexes - the array of indexes used and their properties. Certain list of properties depends on Swish-e version.

Methods

  • Swish::__construct - constructs new Swish object. Throws SwishException on error.

  • Swish->prepare - prepares and returns SwishSearch object. Throws SwishException on error.

  • Swish->query - executes the query and returns SwishResults object. Throws SwishException on error.

  • Swish->getMetaList - returns an array of meta entries for the given index file.

  • Swish->getPropertyList - returns an array of properties for the given index file.

SwishSearch

Methods

SwishResults

Properties

  • hits - the number of results in this SwishResults object.

  • indexes - the array of indexes used in the search.

Methods

SwishResult

Properties

  • Properties list depends on Swish-e version, see examples.

Methods

  • SwishResult->getMetaList - returns an array of meta entries for the index used in this result.

  • SwishResult->stem - stems the word and returns result as an array of strings. Throws SwishException on error.

SwishException

SwishException extends the build in Exception class and possesses the same set of properties and methods. See the Section called Extending Exceptions in Chapter 20 for more details.

Table of Contents
Swish::__construct -- Construct a Swish object
Swish->getMetaList -- Get the list of meta entries for the index
Swish->getPropertyList -- Get the list of properties for the index
Swish->prepare -- Prepare a search query
Swish->query -- Execute a query and return results object
SwishResult->getMetaList -- Get a list of meta entries
SwishResult->stem -- Stems the given word
SwishResults->getParsedWords -- Get an array of parsed words
SwishResults->getRemovedStopwords -- Get an array of stopwords removed from the query
SwishResults->nextResult -- Get the next search result
SwishResults->seekResult -- Set current seek pointer to the given position
SwishSearch->execute -- Execute the search and get the results
SwishSearch->resetLimit -- Reset the search limits
SwishSearch->setLimit -- Set the search limits
SwishSearch->setPhraseDelimiter -- Set the phrase delimiter
SwishSearch->setSort -- Set the sort order
SwishSearch->setStructure -- Set the structure flag in the search object
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