PHP with Elasticsearch API version 1.0

In the last post, We learned how to install Elasticsearch on linux EC2 server. Let's learn how to integrate EleasticSearch API with php to index, fetch and search data.

Lets install ElasticSearch client for php.

1) Open the terminal and go to the project folder that you want to create
       create a new file called composer.json and write the following
                         

                      {
                                  "require": {
                                                    "elasticsearch/elasticsearch": "~1.0"
                                               }
                          }

In case you want to user version 2.0 replace 1.0 with 2.0

2) Donwload and install composer
 

curl -s http://getcomposer.org/installer | php

3) this will create a file composer.phar. run following command to install  all dependancy

php composer.phar install --no-dev

4)  Require Composer's autoloader. Composer also prepares an autoload file that's capable of autoloading all of the classes in any of the libraries that it downloads. Start elasticsearch service if it is not started.

/etc/init.d/elasticsearch start

 
5)  Open a new php file which can connect to elasticsearch.

       

            require 'vendor/autoload.php';

$client_builder = new Elasticsearch\Client();
//creating index
$params['body']  = array('testField' => 'abc');
$params['index'] = 'my_index';
$params['type']  = 'my_type';
$params['id']    = 'my_id';
$ret = $client_builder->index($params);
var_dump($ret);

//fetching index
$getParams = array();
$getParams['index'] = 'my_index';
$getParams['type']  = 'my_type';
$getParams['id']    = 'my_id';
$retDoc = $client_builder->get($getParams);
var_dump($retDoc);

//searching index
$searchParams['index'] = 'my_index';
$searchParams['type']  = 'my_type';
$searchParams['body']['query']['match']['testField'] = 'abc';
$retDoc = $client_builder->search($searchParams);
var_dump($retDoc);

     ?>

once done. Save the file as index.php and run it using command

                  php index.php

We assume tha you are in your project folder before you start the process. This file will create index 'my_index'  in elasticsearch. file also shows demo for fetching index data or searching index data based on the fields. Hope this will provide you basic understanding of how elastic search can be integrated with Php.