--- a/betweenpoint.add.php
+++ b/betweenpoint.add.php
@@ -1,1 +1,50 @@
+<?php
+  /*
+   * GeoPo Encode in PHP
+   * @author : Shintaro Inagaki
+   * @param $location (Array)
+   * @return $geopo (String)
+   */
+  function geopoEncode($lat, $lng)
+  {
+      // 64characters (number + big and small letter + hyphen + underscore)
+      $chars = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_";
+      
+      $geopo = "";
+      $scale = 7;
+      
+      // Change a degree measure to a decimal number
+      $lat = ($lat + 90) / 180 * pow(8, 10);
+      $lng = ($lng + 180) / 360 * pow(8, 10);
+      // Compute a GeoPo code from head and concatenate
+      for ($i = 0; $i < $scale; $i++) {
+          $geopo .= substr($chars, floor($lat / pow(8, 9 - $i) % 8) + floor($lng / pow(8, 9 - $i) % 8) * 8, 1);
+      }
+      return $geopo;
+  }
 
+  
+  $conn = pg_connect("dbname=bus user=postgres password=snmc");
+  if (!$conn) {
+      echo "An error occured.\n";
+      exit;
+  }
+  if ($_REQUEST['newlatlng']) {
+      $latlng = explode(";", $_REQUEST['newlatlng']);
+      $lat = (float)$latlng[0];
+      $lng = (float)$latlng[1];
+      
+      $geoPo = geopoEncode($lat, $lng);
+      $nodelat = (int)($lat * 10000000);
+      $nodelon = (int)($lng * 10000000);
+      echo($nodelat . "," . $nodelon . "=$geoPo<br>");
+      $sql = "INSERT INTO stops (geohash,lat,lng) VALUES ('$geoPo', '$nodelat', '$nodelon')";
+      $result = pg_query($conn, $sql);
+      if (!$result) {
+          echo("Error in SQL query: " . pg_last_error() . "<br>\n");
+      } else {
+      echo "Inserted new point at $geoPo <br>";
+	}
+  }
+  flush();
+?>