Geocode Zip Code on Google Maps

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 Enter 5 numbered US Postal Code 
                       Or Enter a address to geocode .
If you are using Google Chrome 11 or smartphone 
then you can use the microphone to speak out the Address.
It uses Google's Speech Recognition Tool .

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Geocode Address for free

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While googling on the web for a geocode address database which I needed for one of my projects and after visitng a number of sites that did give me an geocode address database but at an cost ranging from $30-$200 that I couldn't afford at any cost. So I decided to use Google Maps , Yahoo Maps and Microsoft Bing Maps to create my free geocode address database.So the first thing I had to check out was which of this mapping giants would me give me the most accurate results .So I started by testing out the values returned by each of the maps. For well known places all 3 of them would give me accurate results, but as places became less famous, Microsoft Bing really sucked & was giving me a city level accuracy only!!!!
So Microsoft Bing Maps was ruled out as being suitable for creating an geocode address database . Now the next option was Google Maps & Yahoo Maps and the good news was that both were giving the most accurate & almost the same reuslts all the time .I wonder if this two Mapping Giants use the same common database ??
Is there any difference between Google Maps and Yahoo Maps ??? Each has its own pros & cons and telling which one is better is still a tough job . 1)Google Maps is extensively used in many web applications as comapred to yahoo and graphic wise Google Maps is far more superior than Yahoo Maps . 2)Yahoo Maps takes less time to load than Google Maps . 3)Google Maps allows you to geocode address at 2000 queries per day . 4)Yahoo Maps on the other hand allows you to geocode address at the rate of 50,0000 queries a day i.e almost 25 times more queriies a day . 5)Google Maps Api allows you to use their Directions Api but Yahoo Maps Api doesn't allow you to use their Directions Api expect on the Yahoo Maps homepage .
So lets get started setting up the geocode address database !! Yahoo Maps Geocode Address Database Creation
// Json encode the data function json_code ($json) { $json = substr($json, strpos($json,'{')+1, strlen($json)); $json = substr($json, 0, strrpos($json,'}')); $json=preg_replace('/(^|,)([\\s\\t]*)([^:]*) (([\\s\\t]*)):(([\\s\\t]*))/s', '$1"$3"$4:',trim($json)); return json_decode('{'.$json.'}', true); } // function to get the geocode of the address function geoCodeYp($point) { $yahoo_appid = 'Your yahoo app id'; // Replace your Yahoo AppID here $pointenc = urlencode($point); // URL Formation that will fetch you the results on query $url="http://where.yahooapis.com/geocode? location=".$pointenc."&gflags=R&appid=".$yahoo_appid."&flags=J"; // get the contents of the URL formed $jsondata = file_get_contents($url); $json_data= '{ a: 1, b: 245, c with whitespaces: "test me", d: "function () { echo \"test\" }", e: 5.66 }'; $coord=explode(" ",$point); // this will json encode the data . $convertedtoarray=$this->json_code($jsondata); // line1 of addrress comprising of house,street no etc // line 2 of address comprising of city state country $line1 =$convertedtoarray['ResultSet']['Results']['0']['line1'] ; $line2 =$convertedtoarray['ResultSet']['Results']['0']['line1'] ; $county =$convertedtoarray['ResultSet']['Results']['0']['county'] ; $street =$convertedtoarray['ResultSet']['Results']['0']['street'] ; if(($line1=="")||($line2=="")||($county=="")||($street=="")) { $yahooresults['status']="noresult"; } else { $countrycode=$convertedtoarray['ResultSet']['Results']['0']['countrycode'] ; $statecode =$convertedtoarray['ResultSet']['Results']['0']['statecode'] ; //$county =$convertedtoarray['ResultSet']['Results']['0']['county'] ; $city =$convertedtoarray['ResultSet']['Results']['0']['city'] ; $house =$convertedtoarray['ResultSet']['Results']['0']['house'] ; $latitude =$convertedtoarray['ResultSet']['Results']['0']['latitude'] ; $longitude =$convertedtoarray['ResultSet']['Results']['0']['longitude'] ; $yahooresults = array('countrycode'=>$countrycode,'statecode'=>$statecode, 'county'=>$county,'city'=>$city,'street'=>$street,'house'=>$house, 'latitude'=>$latitude,'longitude'=>$longitude); } return $yahooresults ; }
This are the two functions which you need to create the geocode address  database . So how do I call this geocode function . Include this two functions in a single php file . 1)Suppose you want to get the geocode address of a  place say "Bohemia" . You can simply call the function as  geoCodeYp("Bohemia") . To further store the result in database : $result=geoCodeYp("Bohemia") ; // get each of the values as $latitude=$result['latitude']; $longitude=$result['longitude']; .............remaining variables.................. You can store each of the results in database by retrieving the remaining values . 2) To geocode address of a point(latitude&longitude) //Example $latitude="72.5632" $longitude="19.756"; // You have to include space between the latitude & longitude $point=$latitude." ".$longitude ; //call the geocode function geocode($point);
Time required to setup the geocode address database?? Suppose you have to want to geocode the address of around 5,00,000 address 1 yahoo appid -> 10 days 2 yahoo appid -> 5 days 10 yahoo appid -> 1 day This way you can create your own geocode address database .  "If you liked anything about this post or have any queries free feel to comment . If you are not a developer & want help in setting up the geocode address database you can send me a mail or comment on this post ."
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