How to query using Elastica

This should do:

// Create a "global" query$query = new Elastica_Query;// Create the term query$term = new Elastica_Query_Term;$term->setTerm('click', 'true');// Add term query to "global" query$query->setQuery($term);// Create the facet$facet = new Elastica_Facet_Terms('matches');$facet->setField('pubid')      ->setAllTerms(true)      ->setSize(200);// Add facet to "global" query$query->addFacet($facet);// Output queryecho json_encode($query->toArray());

To run the query, you need to conntect to your ES servers

// Connect to your ES servers$client = new Elastica_Client(array(    'servers' => array(        array('host' => 'localhost', 'port' => 9200),        array('host' => 'localhost', 'port' => 9201),        array('host' => 'localhost', 'port' => 9202),        array('host' => 'localhost', 'port' => 9203),        array('host' => 'localhost', 'port' => 9204),    ),));

And specify which index and type you want to run your query against

// Get index$index = $client->getIndex('myindex');$type = $index->getType('typename');

Now you can run your query

$type->search($query);

Edit:If you are using a namespaced enviroment and a current version of Elastica, change all the lines where new objects are created accordingly to

$query = new \Elastica\Query;$facet = new \Elastica\Facet\Terms

and so on

You can also query like this:(Thanks to http://tech.vg.no/2012/07/03/using-elastica-to-query-elasticsearch/ for the excellent article)

<?php$query = new Elastica_Query_Builder('{         "query" : {        "term": {            "click": "true"            }           },    "facets" : {        "matches" : {            "terms" : {                "field" : "pubid",                "all_terms" : true,                "size": 200                 }            }           }     }');// Create a raw query since the query above can't be passed directly to the search method used below$query = new Elastica_Query($query->toArray());// Create the search object and inject the client$search = new Elastica_Search(new Elastica_Client());// Configure and execute the search$resultSet = $search->addIndex('blog')                    ->addType('posts')                    ->search($query);// Loop through the resultsforeach ($resultSet as $hit) {    // ...}