Rotron · June 6, 2019 08:40 · Apr 15, 2015 · Apr 15, 2015 · Apr 15, 2015 · Apr 15, 2015
diff --git a/latlong_to_locator → latlong_to_locator.php b/latlong_to_locator → latlong_to_locator.php
diff --git a/gistfile1.php → latlong_to_locator b/gistfile1.php → latlong_to_locator
diff --git a/gistfile1.php b/gistfile1.php
@@ -0,0 +1,46 @@
+<?php
+
+// Example Lat/Long aka IO91js
+$latitude = "51.756435";
+$longitude = "-1.246042";
+
+echo latlong_to_locator($latitude, $longitude);
+
+function latlong_to_locator ($latitude, $longitude) {
+
+  /* 
+    Converts WGS84 coordinates into the corresponding Maidenhead Locator
+
+    Inputs:-
+
+      $latitude
+      $longitude
+  */
+
+  if ($longitude >= 180 || $longitude <= -180) {
+    return "Longitude Value Incorrect";
+  }
+
+  if ($latitude >= 90 || $latitude <= -90) {
+    return "Latitude Value Incorrect";
+  }
+
+  $longitude += 180;
+  $latitude += 90;
+
+
+  $letterA = ord('A');
+  $numberZero = ord('0');
+
+  $locator = chr($letterA + intval($longitude / 20));
+  $locator .= chr($letterA + intval($latitude / 10));
+  $locator .= chr($numberZero + intval(($longitude % 20) / 2));
+  $locator .= chr($numberZero + intval($latitude % 10));
+  $locator .= chr($letterA + intval(($longitude - intval($longitude / 2) * 2) / (2 / 24)));
+  $locator .= chr($letterA + intval(($latitude - intval($latitude / 1) * 1 ) / (1 / 24)));
+
+  return $locator;
+
+}
+
+ ?>