php Programming Glossary: lat2

http://stackoverflow.com/questions/1800510/calculate-driving-directions-using-php

client yourclient output json q from . lat1. . lon1. to . lat2. . lon2 result file_get_contents url data json_decode utf8_encode..

Calculating Great-Circle Distance with SQLite

http://stackoverflow.com/questions/2083182/calculating-great-circle-distance-with-sqlite

link . function sqlite3_distance_func lat1 lon1 lat2 lon2 convert lat1 and lat2 into radians now to avoid doing it.. sqlite3_distance_func lat1 lon1 lat2 lon2 convert lat1 and lat2 into radians now to avoid doing it twice below lat1rad deg2rad.. now to avoid doing it twice below lat1rad deg2rad lat1 lat2rad deg2rad lat2 apply the spherical law of cosines to our latitudes..

PHP MySql and geolocation

http://stackoverflow.com/questions/3606139/php-mysql-and-geolocation

the distance between 2 points. function distance lat1 lon1 lat2 lon2 unit theta lon1 lon2 dist sin deg2rad lat1 sin deg2rad.. unit theta lon1 lon2 dist sin deg2rad lat1 sin deg2rad lat2 cos deg2rad lat1 cos deg2rad lat2 cos deg2rad theta dist acos.. deg2rad lat1 sin deg2rad lat2 cos deg2rad lat1 cos deg2rad lat2 cos deg2rad theta dist acos dist dist rad2deg dist miles dist..

Geo-Search (Distance) in PHP/MySQL (Performance)

http://stackoverflow.com/questions/5236921/geo-search-distance-in-php-mysql-performance

expressed as Lat Long in KM function VincentyDistance lat1 lat2 lon1 lon2 a 6378137 21 sin lat1 b 6356752.3142 f 1 298.257223563.. f 1 298.257223563 p1_lat lat1 57.29577951 p2_lat lat2 57.29577951 p1_lon lon1 57.29577951 p2_lon lon2 57.29577951..

Great Circle Distance question

http://stackoverflow.com/questions/772878/great-circle-distance-question

i.e. php theta lon1 lon2 dist sin deg2rad lat1 sin deg2rad lat2 cos deg2rad lat1 cos deg2rad lat2 cos deg2rad theta dist acos.. deg2rad lat1 sin deg2rad lat2 cos deg2rad lat1 cos deg2rad lat2 cos deg2rad theta dist acos dist dist rad2deg dist convert degrees..

Finding towns within a 10 mile radius of postcode. Google maps API

http://stackoverflow.com/questions/8135243/finding-towns-within-a-10-mile-radius-of-postcode-google-maps-api

use this code public static function getDistance lat1 lng1 lat2 lng2 unit 'km' radius of earth @note the earth is not perfectly.. to radians lat1 deg2rad float lat1 lng1 deg2rad float lng1 lat2 deg2rad float lat2 lng2 deg2rad float lng2 great circle distance.. float lat1 lng1 deg2rad float lng1 lat2 deg2rad float lat2 lng2 deg2rad float lng2 great circle distance formula return..

PHP/MySQL: Select locations close to a given location from DB

http://stackoverflow.com/questions/894713/php-mysql-select-locations-close-to-a-given-location-from-db

between two locations php function distance lat1 long1 lat2 long2 DEGREE TO RADIAN latitude1 lat1 180 pi longitude1 long1.. latitude1 lat1 180 pi longitude1 long1 180 pi latitude2 lat2 180 pi longitude2 long2 180 pi FORMULA e ARCCOS SIN Latitude1..