Get price according distance - php

Question

i am trying to create dynamic price calculation by distance.My requirment similar like this
so I need a function where I can pass
distance and then get price by distance
From 0 -10km = Rs10rs/km (fixed price)
10-15km = rs10Rs/km
15 -20km = 9rs pre/km
20 -30km = 8.5rs per/km
25 -30km = 8rs per/km
30 -40km = 7.5rs per/km
30km -50km above = 7rs / km
foreach ($usersInfo as $index=> $users)
{
$km= 0;
$ridefrom=$users['ride_from'];
$rideto=$users['ride_to'];//this is from lat long
$tempLatLong = explode(',',$users['ride_from']);
$tempLatLong1 = explode(',',$users['ride_to']);
$key = array('lat','long');
$to = array_combine($key,$tempLatLong);
$from = array_combine($key,$tempLatLong1);
$km=distanceCalculation($from['lat'],$from['long'],$to['lat'],$to['long']).'km';
$usersInfo[$index]['distance'] =$km;
$carprice=10;// price will be change dynamical from back end admin can change this.
if($carprice){
$price=$km*10;
}
else{
$price=$km*9;
}
$usersInfo[$index]['price'] =$price;
return $usersInfo;
}

Answer 1

Try something like this:
function price_per_km($distance, $mode) {
if ($mode == 'car') {
switch (true) {
case $distance <= 10:
return 10*$distance;
case $distance <= 15:
return 10*$distance;
case $distance <= 20:
return 9*$distance;
case $distance <= 25:
return 8.5*$distance;
case $distance <= 30:
return 8*$distance;
case $distance <= 40:
return 7.5*$distance;
default:
return 7*$distance;
}
}
else {
// bike
switch (true) {
case $distance <= 10:
return 12*$distance;
case $distance <= 15:
return 11*$distance;
case $distance <= 20:
return 10*$distance;
case $distance <= 25:
return 9*$distance;
default:
return 8*$distance;
}
}
}
echo price_per_km(5, 'car') . "\n";
echo price_per_km(12, 'car') . "\n";
echo price_per_km(25, 'car') . "\n";
echo price_per_km(35, 'car') . "\n";
echo price_per_km(5, 'bike') . "\n";
echo price_per_km(15, 'bike') . "\n";
echo price_per_km(35, 'bike') . "\n";
Output:
50
120
212.5
227.5
60
165
270