This package implemented for calculate or check the distance between point and other database points.
PHP >=7.2 and Laravel 6.0 are required.
the package used Laravel postgis extension to deal with postgres database points in laravel, so if need more details or how to enable postgis extension in php see previous link.
To get the latest version of Laravel 6 PostGIS, simply require the project using Composer:
composer require canylmz/laravel-postgis1 . First of all use Postgis trait in your model
<?php
namespace App;
use Canylmz\Postgis\Postgis;
use Illuminate\Database\Eloquent\Model;
class UserLocation extends Model
{
    use Postgis;
}2 . By default package assume that the name of the point column is location if you want to change it override location variable on your model
protected $location = "my_column";3 . Also By default package assume that the unit of distance is meter if you want to change it override unit variable on your model
 protected $unit = "km"; //units avialble [mile, km, meter]get the distance between point and other points
UserLocation::withDistance(new Point($atitude,$longitude))
            ->with("user")
            ->whereIn("user_id", $users)
            ->get();check the distance between a point and other points in database
       UserLocation::whereDistance(new Point($atitude,$longitude), ">", 50)
            ->with("user")
            ->whereIn("user_id", $users)
            ->get();