Language: C C++ D Haskell Lua OCaml PHP Perl Plain Text Python Ruby Scheme Tcl <?php $longitude = (float) -2.708077; $latitude = (float) 53.754842; $radius = 20; // in miles // degrees per mile latitude $dpm_lat = (float) 1 / 69; // Latitude calculation $rlat = (float) $dpm_lat * $radius; $lat_min = (float) $latitude - $rlat; $lat_max = (float) $latitude + $rlat; // Longitude calculation $mpd_lng = (float) abs(cos(deg2rad($latitude)) * 69); $dpm_lng = (float) 1 / $mpd_lng; $rlng = $dpm_lng * $radius; $lng_min = $longitude - $rlng; $lng_max = $longitude + $rlng; echo 'lng (min/max): ' . $lng_min . '/' . $lng_max . PHP_EOL; echo 'lat (min/max): ' . $lat_min . '/' . $lat_max; Private [?] Run code