Searching based on a user’s location is a feature of many websites and applications. This type of search adds relevancy and value to a website, especially when these results include the distance from a point or within a polygon, and are combined with fast text searches. In this article, we’ll take an in-depth look at how Elasticsearch supports searching based upon latitude and longitude. We’ll look at the different types of location searches and how to integrate these searches into a PHP-based backend API.