Changing variables

TheDigglerUK

Hi, I have the following code that calculates distance and price but i want to change it so i can set the distance but when i try it gives me loads of errors? Basically if i give the $distance i want it to calculate from the arrays but it doesnt seem to have it? So forget the googlemaps info, i just want to enter a figure in miles and calculate from there?

Any help appreciated!

<?

$small = array(5,4,9.5,8,7,5,5,3.8,4,3.5,2.7);
$med = array(6.66,5,11,10.33,7.5,6.66,6.25,4.6,4.5,3.9,3.6);
$large = array(8.33,6,12.5,12.33,8.5,7.66,6.87,5.2,4.9,4.3,4.1);
$dists = array(3,5,10,15,20,30,40,50,80,100,9999999);
if($_GET[lat]!='')
{
	$lat = $_GET[lat];
	if($_GET[lon]!='')
	{
		$lon = $_GET[lon];
		$url = 'http://maps.googleapis.com/maps/api/directions/json?origin='.$lat.'&waypoints=optimize:false|'.$lon.'&sensor=false';
		$res = json_decode(get_html($url),true);
		$distance = ($res[routes][0][legs][0][distance][value]/1609.344).' miles';
		$duration = $res[routes][0][legs][0][duration][text];
		$pax = $_GET[pax];
		if($pax==6||$pax==7||$pax==8){$rate=$small;}
		if($pax==9||$pax==10||$pax==11){$rate=$med;}
		if($pax==12||$pax==13||$pax==14||$pax==15||$pax==16){$rate=$large;}
		foreach($dists as $ix => $val)
		{
			if($val>$distance)
			{
				break;
			}else{
				$price = $distance*$rate[$ix];
			}
		}

//	$return = number_format($price,2);

?>

m_tt

I am guessing...when you add ' miles' to the end of $distance you are converting it to a string then trying to compare it to an integer ($val > $distance)

TheDigglerUK

I dont understand what you mean? If i want to say for example enter , $distance = "20.01" then thats what i want to be able to get the result from!

Thanks

Jules

m_tt

So you just want to strip out the part that calculates $price? That should be easy enough for you to do. Can you show me what you attempted to do?

TheDigglerUK

That is what i have! I simply just want to be able to set the $distance to whatever and then it outputs the price! I dont want to get rid of that bit, but i cant simply enter a distance, it just wants the calculated distance from the google maps?

So basically if i start the php script like:-

$pax = "8";
$distance = "212";

I want the script to calculate from this?

Thanks

Jules

m_tt

I really think you should be able to handle this on your own but I believe this is what you are looking for. I only made a slight change to the code that sets $rate

$small = array(5,4,9.5,8,7,5,5,3.8,4,3.5,2.7);
$med = array(6.66,5,11,10.33,7.5,6.66,6.25,4.6,4.5,3.9,3.6);
$large = array(8.33,6,12.5,12.33,8.5,7.66,6.87,5.2,4.9,4.3,4.1);
$dists = array(3,5,10,15,20,30,40,50,80,100,9999999);

$pax = 10;
$distance = 20.01;

switch($pax) {
	default:
	case $pax <= 8:
		$rate = $small;
	break;
	case $pax >= 9 && $pax <= 11:
		$rate = $med;
	break;
	case $pax >= 12:
		$rate = $large;
	break;
}
foreach($dists as $key => $value) {
	if ($value > $distance) {
		break;
	} else {
		$price = $distance * $rate[$key];
	}
}
echo number_format($price, 2);

TheDigglerUK

Yes thanks that works fine thanks. My postcode database is calculating distance as the "crow flys" as such, is there an easy way that i can get the distance "by road" from google and set that as the distance?

I can get this information but i cannot pass it to the page to calculate and process?

Many thanks again,

Jules

TheDigglerUK

$small = array(5,4,9.5,8,7,5,5,3.8,4,3.5,2.7);
$med = array(6.66,5,11,10.33,7.5,6.66,6.25,4.6,4.5,3.9,3.6);
$large = array(8.33,6,12.5,12.33,8.5,7.66,6.87,5.2,4.9,4.3,4.1);
$dists = array(3,5,10,15,20,30,40,50,80,100,9999999);

$pax = 11;
$distance = 20.01;

switch($pax) {
default:
case $pax <= 8:
$rate = $small;
break;
case $pax >= 9 && $pax <= 11:
$rate = $med;
break;
case $pax >= 12:
$rate = $large;
break;
}
foreach($dists as $key => $value) {
if ($value > $d1) {
break;
} else {
$price = $d1 * $rate[$key];
}
}

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:v="urn:schemas-microsoft-com:vml">
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<title>Google Maps JavaScript API Example: Extraction of Geocoding Data</title>
<script src="http://maps.google.com/maps?file=api&v=2&key=AIzaSyANQSRMzl2jNUON2VbF24f5xuPm_YtH6l0" type="text/javascript"></script>

<script type="text/javascript">

var geocoder, location1, location2;

function initialize() {
	geocoder = new GClientGeocoder();
}

function showLocation() {
	geocoder.getLocations(document.forms[0].address1.value, function (response) {
		if (!response || response.Status.code != 200)
		{
			alert("Sorry, we were unable to geocode the first address");
		}
		else
		{
			location1 = {lat: response.Placemark[0].Point.coordinates[1], lon: response.Placemark[0].Point.coordinates[0], address: response.Placemark[0].address};
			geocoder.getLocations(document.forms[0].address2.value, function (response) {
				if (!response || response.Status.code != 200)
				{
					alert("Sorry, we were unable to geocode the second address");
				}
				else
				{
					location2 = {lat: response.Placemark[0].Point.coordinates[1], lon: response.Placemark[0].Point.coordinates[0], address: response.Placemark[0].address};
					calculateDistance();
				}
			});
		}
	});
}

function calculateDistance()
{
	try
	{
		var glatlng1 = new GLatLng(location1.lat, location1.lon);
		var glatlng2 = new GLatLng(location2.lat, location2.lon);
		var miledistance = glatlng1.distanceFrom(glatlng2, 3959).toFixed(1);
		var kmdistance = (miledistance * 1.609344).toFixed(1);

		document.getElementById('results').innerHTML = '<strong>Pickup: </strong>' + location1.address + '<br /><strong>Dropoff: </strong>' + location2.address + '<br /><strong>Distance: </strong>' + miledistance + ' miles (or ' + kmdistance + ' kilometers)';
	}
	catch (error)
	{
		alert(error);
	}
}

</script>

</head>

<form action="#" onsubmit="showLocation(); return false;">
  <p>
    <input type="text" name="address1" value="Address 1" class="address_input" size="40" />
    <input type="text" name="address2" value="Address 2" class="address_input" size="40" />
    <input type="submit" name="find" value="Search" />
    <? echo $miledistance ?>
  </p>
</form>
<p id="results"></p>

</body>
</html>

TheDigglerUK

So how can i make the distance between the 2 postcodes or addresses pass to the page? I need the distance/price on the page and also to be saved in a hidden form to be posted, thats where i am having the problems!

Many thanks

Jules

m_tt

It looks like you are trying to get the distance via JavaScript and calculate the price via PHP.

You should either do both in JavaScript or both in PHP.

Much like the original code you posted, the distance can be calculate from two string addresses rather than the Lat/Long

Here is an example. I will say that I am in no way familiar with the Google Maps API but it seems simple enough.

$address1 = "Aberdeen, UK";
$address2 = "Birmingham, UK";

$api = "http://maps.googleapis.com/maps/api/directions/json?origin=" . urlencode($address1) . "&destination=" . urlencode($address2) . "&sensor=false";

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $api);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$res = curl_exec($ch);

if ($res) {
	$res = json_decode($res, true);
	$distance = $res['routes'][0]['legs'][0]['distance']['value'] / 1609.344;

echo $distance;
}

So $address1 and $address2 could easily be converted to work with the $_POST variables from a form and $distance used to calculate the $price.

TheDigglerUK

That works brilliant!

Thankyou

Jules

TheDigglerUK

Just of a matter of interest, if we had a minimun charge of £18.00 for 8 seater and £22.00 for 12 seater and £25.00 for 16, whats the easiest way to put it in the code?

Thanks

Jules

m_tt

I'm not sure if I can help with that. I would imagine if you want to have a minimum price you would need to first calculate the price then determine if the minimum has been met. Perhaps something like this:

$size = 8; // product identifier 8, 12, or 16
switch($size) {
	case 8:
		$min = 18;
	break;
	case 12:
		$min = 22;
	break;
	case 16:
		$min = 25;
	break;
}
$price = ($price < $min ? $min : $price); // if $price < $min set to $min otherwise keep $price

TheDigglerUK

Hi, i have the following code that takes 2 addresses and returns the distance between 2 places. It is quite clever as in it returns the postcodes and full address in readable format. But i need this to run after a user has entered their details and it runs and returns the values? Also is this by the road or as the crow flies?

Many thanks in advance.

var geocoder, location1, location2;

function initialize() {
	geocoder = new GClientGeocoder();
}

function showLocation() {
	geocoder.getLocations(document.forms[0].address1.value, function (response) {
		if (!response || response.Status.code != 200)
		{
			alert("Sorry, we were unable to geocode the first address");
		}
		else
		{
			location1 = {lat: response.Placemark[0].Point.coordinates[1], lon: response.Placemark[0].Point.coordinates[0], address: response.Placemark[0].address};
			geocoder.getLocations(document.forms[0].address2.value, function (response) {
				if (!response || response.Status.code != 200)
				{
					alert("Sorry, we were unable to geocode the second address");
				}
				else
				{
					location2 = {lat: response.Placemark[0].Point.coordinates[1], lon: response.Placemark[0].Point.coordinates[0], address: response.Placemark[0].address};
					calculateDistance();
				}
			});
		}
	});
}

function calculateDistance()
{
	try
	{
		var glatlng1 = new GLatLng(location1.lat, location1.lon);
		var glatlng2 = new GLatLng(location2.lat, location2.lon);
		var miledistance = glatlng1.distanceFrom(glatlng2, 3959).toFixed(1);
		var kmdistance = (miledistance * 1.609344).toFixed(1);

		document.getElementById('results').innerHTML = '<strong>Pickup: </strong>' + location1.address + '<br /><strong>Dropoff: </strong>' + location2.address + '<br /><strong>Distance: </strong>' + miledistance + ' miles (or ' + kmdistance + ' kilometers)';
	}
	catch (error)
	{
		alert(error);
	}
}

</script>

</head>

<form action="#" onsubmit="showLocation(); return false;">
  <p>
    <input type="text" name="address1" value="Address 1" class="address_input" size="40" />
    <input type="text" name="address2" value="Address 2" class="address_input" size="40" />
    <input type="submit" name="find" value="Search" />
    <? echo $miledistance ?>
  </p>
</form>
<p id="results"></p>

</body>
</html>