Update 'README.md'

Cleaned up, finished readme file.

README.md

@@ -1,16 +1,86 @@
 # geocode_class
+> 
+> **NOTE: There is a file missing (class/key.php)** 
+> 
+> You will need to get your own Google API Key
+> 
+> Change the **YOUR KEY HERE** with your key.
+> 
+> Keep the key= part as it is required for the string.
+> 
+> key.php
+ ```
+ <?php
+ 	CONST API_KEY = 'key=YOUR KEY HERE';
+ 
+ ```
+> *** Place this file in the same directory as the class file (geocode.php)
+ 
+-----
+
+Currently this class has three functions. Two require a Google API Key to work.
+
+**1) straight_line_distance($lat1, $lon1, $lat2, $lon2, $unit='')** <br/>
+This will calculate the distance between two sets of Latitudes and Longitudes. using a straight line or as the crow flies.<br/>
+Using **$unit** you can have it display the distance in (Blank=Miles, K=Kilometers, N=Nautical Miles). Default=Blank or Miles. <br/>
+
+Output: Distance Value
 
-**NOTE: There is a file missing (class/key.php)** 
+#### Google API Required Functions. ####
 
-You will need to get your own Google API Key
+**2) getLatLong($address)** <br/>
+This will return a Latitude and Longitude for a given address in a array format.
 
-Change the **YOUR KEY HERE** with your key.
+Output:</br>
+$Arr['status'] - Returns Google status for call.  Normal = 'OK' </br>
+$Arr['lat'] - Returns the Latitude. <br/>
+$Arr['lon'] - Returns the Longitude. <br/>
 
-Keep the key= part as it is required for the string.
 
-key.php
+**3) getDistance($origin, $destination, $mode='driving', $unit='imperial')** <br/>
+This returns the distance and duration it will take from the Origin to the Destination addresses. <br/>
+Using **$mode** you can select from three types (driving, walking, bicycling). Default = driving. <br/>
+Using **$unit** you can select from (imperial = miles or metric = kilometers). Default = imperial. <br/>
+
+Output:</br>
+$Arr['status'] - Returns Google status for call.  Normal = 'OK' </br>
+$Arr['distance'] - Returns the distance between origin and the destination. <br/>
+$Arr['duration'] - Returns how long it will take to get from the origin to the destination. <br/>
+
+
+**geocode-example.php**
 ```
 <?php
-	CONST API_KEY = 'key=YOUR KEY HERE';
+// == GEOCODE CLASS ====================================================================================================
+	require_once 'class/geocode.php';
+// -- Init Class
+	$geocode = new geocode();
+
+// -- Straight Line Distance -------------------------------------------------------------------------------------------
+	echo 'Straight Line Distance between two Lat/Lon <br/><br/>';
+	echo $geocode->straight_line_distance(39.10968, -94.57949, 39.17521, -94.53957) ;
+	echo '<br/><br/>' . str_repeat('=',60) . '<br/>';
+
+// -- Get the Lat/Lon of a address -------------------------------------------------------------------------------------
+	$address = '1600 Pennsylvania Ave NW, Washington, DC 20500 <br/><br/>';
+	echo 'Lat/Lon of address: ' . $address;
+	$latlong = $geocode->getLatLong($address);
+	echo 'STATUS: ' . $latlong['status']  . '<br />';
+	echo 'LAT: '    . $latlong['lat']     . '<br />';
+	echo 'LON: '    . $latlong['lon']     . '<br />';
+	echo '<br/>' . str_repeat('=',60) . '<br/>';
+
+// -- Drive Distance ---------------------------------------------------------------------------------------------------
+	$origin      = '1600 Pennsylvania Ave NW, Washington, DC 20500 <br/>';
+	$destination = '1313 Mockingbird Lane, North Hollywood, CA 91602 <br/>';
+	echo 'Drive Distance: <br/>';
+	echo 'From: ' . $origin . ' to: ' . $destination . '<br/>';
+	$dist = $geocode->getDistance($origin, $destination, 'driving', 'imperial');
+	echo 'STATUS: '   . $dist['status']   . '<br/>';
+	echo 'DISTANCE: ' . $dist['distance'] . '<br/>';
+	echo 'DURATION: ' . $dist['duration'] . '<br/>';
+	echo '<br/>' . str_repeat('=',60) . '<br/>';
+
+// == END SCRIPT =======================================================================================================
 
 ```