Php 如何根据距离过滤器显示帖子

我正在lumen框架中创建PostAPI，其中包含用户详细信息，并获取每个帖子的当前纬度和经度。

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我如何制作一个API，在这个API中，用户可以在特定距离内看到帖子（比如，帖子应该在10公里内可见）。感谢您的指导。

我对lumem不太在行，但我知道它是laravel的微型版本，所以我创建了php脚本，可以在laravel或php或其他php框架上运行

/**
    * @function     calculateDistanceBetweenTwoPoints
    * @author       Manojkiran <manojkiran10031998@gmail.com>
    * @param        string  $latitudeOne
    * @param        string  $longitudeOne
    * @param        string  $latitudeTwo
    * @param        string  $longitudeTwo
    * @param        string  $distanceUnit
    * @param        boolean $round
    * @param        string  $decimalPoints
    * @usage        calculates the distance between  latitude and longitude coordiates
    * @version      1.3
    **/
    /*
    |--------------------------------------------------------------------------
    | calculates the distance between  latitude and longitude coordiates by different distance units such as miles,kilometes etc
    |--------------------------------------------------------------------------
    |
    |
    |Usage:
    |Option 1: Returning the round value of the distance
    |echo calculateDistanceBetweenTwoPoints('11.657740','77.766270','11.074820','77.002160','ML',true);
    |
    |Option 2: Returning the Distance with specific decimal points
    |echo calculateDistanceBetweenTwoPoints('11.657740','77.766270','11.074820','77.002160','ML',false,2);
    |echo calculateDistanceBetweenTwoPoints('11.657740','77.766270','11.074820','77.002160','ML',false,7);
    |
    */

    function calculateDistanceBetweenTwoPoints(float $latitudeOne, float $longitudeOne, float $latitudeTwo , float $longitudeTwo,string  $distanceUnit ='KM', bool $round = false , int $decimalPoints = 3)
    {

        $distanceUnit = strtolower($distanceUnit);
        $pointDifference = $longitudeOne - $longitudeTwo;
        $toSin = (sin(deg2rad($latitudeOne)) * sin(deg2rad($latitudeTwo))) + (cos(deg2rad($latitudeOne)) * cos(deg2rad($latitudeTwo)) * cos(deg2rad($pointDifference)));
        $toAcos = acos($toSin);
        $toRad2Deg = rad2deg($toAcos);

        $toMiles  =  $toRad2Deg * 60 * 1.1515;
        $toKilometers = $toMiles * 1.609344;
        $toNauticalMiles = $toMiles * 0.8684;
        $toMeters = $toKilometers * 1000;
        $toFeets = $toMiles * 5280;
        $toYards = $toFeets / 3;


              switch (strtoupper($distanceUnit)) 
              {
                  case 'ML'://miles
                         $toMiles  = ($round == true ? round($toMiles) : round($toMiles, $decimalPoints));
                         return $toMiles;
                      break;
                  case 'KM'://Kilometers
                        $toKilometers  = ($round == true ? round($toKilometers) : round($toKilometers, $decimalPoints));
                        return $toKilometers;
                      break;
                  case 'MT'://Meters
                        $toMeters  = ($round == true ? round($toMeters) : round($toMeters, $decimalPoints));
                        return $toMeters;
                      break;
                  case 'FT'://feets
                        $toFeets  = ($round == true ? round($toFeets) : round($toFeets, $decimalPoints));
                        return $toFeets;
                      break;
                  case 'YD'://yards
                        $toYards  = ($round == true ? round($toYards) : round($toYards, $decimalPoints));
                        return $toYards;
                      break;
                  case 'NM'://Nautical miles
                        $toNauticalMiles  = ($round == true ? round($toNauticalMiles) : round($toNauticalMiles, $decimalPoints));
                        return $toNauticalMiles;
                      break;
            }             
    }

因此，在您的情况下，可以按如下方式传递参数

echo calculateDistanceBetweenTwoPoints('11.657740','77.766270','11.074820','77.002160','KM',false,0);

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谢谢你的指导，但是假设我创建了一个帖子，并且我希望该帖子对该特定区域内的所有用户都可见，这仍然是可能的。据我所知，这段代码查找两个指定点之间的距离。您可以根据ip地址获取当前用户的纬度和经度，并将这些值传递给我的函数。我的意思是，我将所有用户的纬度和经度存储在我的用户表中，我还有另一个表名为post。当一个人创建一个post时，它将在创建post时捕获lat和lon并将其发送到post表。我希望我的帖子的table api在users表中查找10km距离，并向他们显示postcan您可以共享一些datapublic函数up（）{Schema:：connection（'mysql1'）->create（'posts'，function（Blueprint$table）{$table->bigmentrements（'id'）；$table->integer（'post_id'）->unique（10）；$table->integer（'user_id'）；$table->string（'location'）；$table->string（'title'）；$table->string（'description'）；$table->float（'lat'）；$table->float（'lon'）；$table->timestamps（）；}）

echo calculateDistanceBetweenTwoPoints('11.657740','77.766270','11.074820','77.002160','KM',false,0);