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.
Table of Contents (15 chapters)
Apache Solr PHP Integration
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Re-using queries


In most cases, the queries that you build as a part of the application can be reused. It would make more sense to re-use the queries instead of creating them again. The functions provided by the Solarium interface help in modifying the Solarium query for re-use. Let us see an example for re-using queries.

Suppose we form a complex query based on input parameters. For pagination purposes, we would like to use the same query but change the start and rows parameters to fetch the next or previous page. Another case where a query could be reused is sorting. Suppose we would like to sort by price in ascending order and later by descending order.

Let us first define and create an alias for Solarium namespaces we will be using in our code.

use Solarium\Client;
use Solarium\QueryType\Select\Query\Query as Select;

Next, create a class that extends the Solarium query interface:

Class myQuery extends Select
{

Inside the class we will create the init() function, which will override the same...