Book Image

Apache Solr PHP Integration

By : Jayant Kumar
Book Image

Apache Solr PHP Integration

By: Jayant Kumar

Overview of this book

The Search tool is a very powerful for any website. No matter what type of website, the search tool helps visitors find what they are looking for using key words and narrow down the results using facets. Solr is the popular, blazing fast, open source enterprise search platform from the Apache Lucene project. It is highly scalable, providing distributed search and index replication, and it powers the search and navigation features of many of the world's largest websites.This book is a practical, hands-on, end-to-end guide that provides you with all the tools required to build a fully-featured search application using Apache Solr and PHP. The book contains practical examples and step-by-step instructions.Starting off with the basics of installing Apache Solr and integrating it with Php, the book then proceeds to explore the features provided by Solr to improve searches using Php. You will learn how to build and maintain a Solr index using Php, discover the query modes available with Solr, and how to use them to tune the Solr queries to retrieve relevant results. You will look at how to build and use facets in your search, how to tune and use fast result highlighting, and how to build a spell check and auto complete feature using Solr. You will finish by learning some of the advanced concepts required to runa large-scale enterprise level search infrastructure.

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Apache Solr PHP Integration
Jayant Kumar
Nov, 2013 | 118 pages
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Table of Contents (15 chapters)
Apache Solr PHP Integration
Apache Solr PHP Integration
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Installing and Integrating Solr and PHP
Installing and Integrating Solr and PHP
Solr
Installing Solr
Configuring Tomcat to run Solr
Executing a ping query on Solr using PHP
Libraries available for PHP-Solr integration
Installing Solarium
Executing ping queries on Solr using PHP and Solarium library
More about endpoints
Checking Solr query logs
Solarium adapters
Summary
2
Inserting, Updating, and Deleting Documents from Solr
Inserting, Updating, and Deleting Documents from Solr
The Solr schema
Adding sample documents to the Solr index
Using PHP to add documents to the Solr index
Updating documents in Solr using PHP
Deleting documents in Solr using PHP
Commit, rollback, and index optimization
Summary
3
Select Query on Solr and Query Modes (DisMax/eDisMax)
Select Query on Solr and Query Modes (DisMax/eDisMax)
Creating a basic select query with sorting and return fields
Running a query using select configuration
Re-using queries
DisMax and eDisMax query modes
Executing queries using DisMax and eDisMax
Date boosting in an eDisMax query
Advanced query parameters
Summary
4
Advanced Queries – Filter Queries and Faceting
Advanced Queries – Filter Queries and Faceting
Filter queries and their benefits
Executing filter queries
Creating filter query configuration
Faceting
Facet by field
Facet by query
Facet by range
Facet by pivot
Summary
5
Highlighting Results Using PHP and Solr
Highlighting Results Using PHP and Solr
Solr highlighting configuration
Highlighting in Solr using PHP and Solarium
Using different highlighting tags for different fields
Highlighting using the fast vector highlighter
Summary
6
Debug and Stats Component
Debug and Stats Component
Solr relevance ranking
Executing debug through PHP code
Running debug on Solr interface
The stats component
Summary
7
Spell Check in Solr
Spell Check in Solr
Solr configuration for spell check
Spell checker implementations available with Solr
Running a spell check query using PHP
Implementing the autocomplete feature using PHP and Solr
Summary
8
Advanced Solr – Grouping, the MoreLikeThis Query, and Distributed Search
Advanced Solr – Grouping, the MoreLikeThis Query, and Distributed Search
Grouping results by fields
Grouping results by queries
Running more like this query using PHP
More like this tuning parameters
Distributed search
Setting up a distributed search
Executing a distributed search using PHP
Setting up Solr master-slave
Load balancing Solr queries using PHP
Summary
Index
Index

Facet by pivot

In addition to the different ways of creating facets, there is a concept of facet by pivots that is provided by Solr and is exposed via Solarium. Pivot faceting allows us to create facets within the results of the parent facet. The input to pivot faceting is a set of fields to pivot on. Multiple fields create multiple sections in the response.

Here is the code to create a facet pivot on genre and availability (in stock):

$facetqry = $facetset->createFacetPivot('genre-instock');
$facetqry->addFields('genre_s,inStock');

To display the pivots, we have to get all facets from the resultset.

$facetResult = $resultSet->getFacetSet()->getFacet('genre-instock');

And for each facet, get the field, value, and count for the facet and more facet pivots within the facet.

  echo 'Field: '.$pivot->getField().PHP_EOL;
  echo 'Value: '.$pivot->getValue().PHP_EOL;
  echo 'Count: '.$pivot->getCount().PHP_EOL;

Also get all pivots inside this facet and process them in the same fashion...

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