Merge pull request #5 from ivebeenlinuxed/master

Improve reverse geocode query - thanks Will!

postcode.php

@@ -45,8 +45,8 @@
 } else {
 	$lat = mysql_real_escape_string($_GET['lat']);
 	$lng = mysql_real_escape_string($_GET['lng']);
-	//$result = mysql_query("SELECT postcode, ( 3959 * acos( cos( radians($lat) ) * cos( radians( lat ) ) * cos( radians( lng ) - radians($lng) ) + sin( radians($lat) ) * sin( radians( lat ) ) ) ) AS distance FROM postcodes  WHERE ".($lat-0.1)." < lat AND ".($lat+0.1)." > lat AND ".($lng-0.1)." < lng AND ".($lng+0.1)." > lng ORDER BY distance LIMIT 0,1");
-	$result = mysql_query("SELECT postcode, ( 3959 * acos( cos( radians($lat) ) * cos( radians( lat ) ) * cos( radians( lng ) - radians($lng) ) + sin( radians($lat) ) * sin( radians( lat ) ) ) ) AS distance FROM postcodes ORDER BY distance LIMIT 0,1");
+	$result = mysql_query("SELECT postcode, ( 3959 * acos( cos( radians($lat) ) * cos( radians( lat ) ) * cos( radians( lng ) - radians($lng) ) + sin( radians($lat) ) * sin( radians( lat ) ) ) ) AS distance FROM postcodes  WHERE ".($lat-0.1)." < lat AND ".($lat+0.1)." > lat AND ".($lng-0.1)." < lng AND ".($lng+0.1)." > lng ORDER BY distance LIMIT 0,1");
+	//$result = mysql_query("SELECT postcode, ( 3959 * acos( cos( radians($lat) ) * cos( radians( lat ) ) * cos( radians( lng ) - radians($lng) ) + sin( radians($lat) ) * sin( radians( lat ) ) ) ) AS distance FROM postcodes ORDER BY distance LIMIT 0,1");
 	$row = mysql_fetch_array($result);
 
 	$query = "SELECT postcode, lat, lng, easting, northing, postcodes.county AS countygss, counties.county AS countyname, counties.snacid AS countysnac, postcodes.council AS councilgss, councils.snacid AS councilsnac, councils.council AS councilname, postcodes.ward AS wardgss, wards.ward as wardname, wards.snacid as wardsnac, postcodes.constituency AS constituencygss, constituencies.constituency AS constituencyname, constituencies.snacid AS constituencycode, postcodes.parish AS parishgss, parishes.snacid AS parishsnac, parishes.parish AS parishname FROM postcodes LEFT JOIN councils ON postcodes.council = councils.code LEFT JOIN wards ON postcodes.ward = wards.code LEFT JOIN counties ON postcodes.county = counties.code LEFT JOIN constituencies ON postcodes.constituency = constituencies.code LEFT JOIN parishes ON postcodes.parish = parishes.code WHERE postcodes.postcode = '$row[postcode]' LIMIT 0,1";