我正在lumen框架中创建Post API，该API包含用户详细信息，并获取每个帖子的当前经度和纬度。 我如何制作API，使该区域内的用户可以在特定距离内看到该帖子（例如该帖子应该在10公里之内可见）。任何指导表示赞赏。
答案 0 :(得分：0)
我的手法不佳，但是我知道它是laravel的微型版本，因此我创建了可以在 the laravel OR PHP OR other PHP FRAMEWORKS
/**
* @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;
}
}
说明
参数
$latitudeOne => which indicates the latitude of point one
$longitudeOne => which indicates the longitude of point one
$latitudeTwo => which indicates the latitude of point two
$longitudeTwo => which indicates the longitude of point two
$distanceUnit => sets that in which unit the distance needs to be calculated
AVAILABLE UNITS[ML => MILE(S),KM => KILOMETER(S),MT => METER(S),FT => FEET(S),YD => YARD(S),NM => NAUTICAL MILE(S)]
默认为 KM
$round => Set to true if you want to round of the value
$decimalPoints => Set the number of digits that need to be added for the float values
因此，在您遇到的情况下，您可以按以下方式传递参数
echo calculateDistanceBetweenTwoPoints('11.657740','77.766270','11.074820','77.002160','KM',false,0);