ElasticSearch PHP library

ElasticSearch is a search server based on Lucene. It provides a distributed multi-user capable full-text search engine based on a RESTful web interface. Developed in Java and released as open source under the terms of the Apache license, Elasticsearch is a popular enterprise-level search engine. Designed for use in cloud computing, it can achieve real-time search, is stable, reliable, fast, and is easy to install and use.

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From the course"Ten Million Level Data Concurrency Solution (Theory and Practice)》

We build a website or application and want to add a search function, but it is very difficult to complete the creation of the search work. We want our search solution to be fast, we want to have a zero-configuration and a completely free search mode, we want to be able to simply use JSON to index data over HTTP, we want our search server to be always available, we want to be able Starting with one and scaling to hundreds, we want real-time search, we want simple multi-tenancy, and we want to build a cloud solution. So we use Elasticsearch to solve all of these problems and many more that may arise.

ElasticSearch’s PHP client library

<?php
namespace Elastica;
class Index implements SearchableInterface
{
    protected $_name;
    protected $_client;
    public function __construct(Client $client, $name)
    {
        $this->_client = $client;
        if (!is_scalar($name)) {
            throw new InvalidException('Index name should be a scalar type');
        }
        $this->_name = (string) $name;
    }