77 lines
2.1 KiB
PHP
77 lines
2.1 KiB
PHP
<?php
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/**
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* @author Any
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* @description KISS
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* @date 2021-4-17
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* @version 1.0.0
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*
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* _____LOG_____
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*
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*/
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namespace app\modules\api\components;
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class GetDistance
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{
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/**
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*计算两点地理坐标之间的距离
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* @param /Decimal $longitude1 起点经度
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* @param /Decimal $latitude1 起点纬度
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* @param /Decimal $longitude2 终点经度
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* @param /Decimal $latitude2 终点纬度
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* @param Int $unit 单位 1:米 2:公里
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* @param Int $decimal 精度 保留小数位数
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* @return /Decimal
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*/
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public static function getDistance($longitude1, $latitude1, $longitude2, $latitude2, $unit = 2, $decimal = 2)
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{
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if (empty($longitude1) || empty($latitude1)) {
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return "未开启定位";
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}
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$EARTH_RADIUS = 6370.996; // 地球半径系数
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$PI = 3.1415926;
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$radLat1 = $latitude1 * $PI / 180.0;
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$radLat2 = $latitude2 * $PI / 180.0;
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$radLng1 = $longitude1 * $PI / 180.0;
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$radLng2 = $longitude2 * $PI / 180.0;
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$a = $radLat1 - $radLat2;
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$b = $radLng1 - $radLng2;
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$distance = 2 * asin(sqrt(pow(sin($a / 2), 2) + cos($radLat1) * cos($radLat2) * pow(sin($b / 2), 2)));
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$distance = $distance * $EARTH_RADIUS * 1000;
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if ($unit == 2) {
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$distance = $distance / 1000;
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}
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return round($distance, $decimal) . 'km';
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}
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public static function mdate($time)
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{
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switch ($time) {
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case $time == 0:
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$text = '刚刚';
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break;
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//秒
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case $time < 60:
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$text = $time . '秒';
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break;
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//分钟
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case $time < 60 * 60:
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$text = floor($time / 60) . '分钟';
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break;
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//小时
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case $time < 60 * 60 * 24:
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$text = floor($time / (60 * 60)) . '小时';
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break;
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case $time > 60 * 60 * 24:
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$text = floor($time / (60 * 60)) . '小时';
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break;
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}
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return $text;
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}
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} |