Find Shortest distance from an array of arrays using php - php

Question

I want to compare the distance from array[0] to end of array and display the shortest distance with its key.
Array
(
[0] => Array
(
[city] => Array
(
[0] => Reduit
[1] => Curepipe
)
[distance] => 14.4
)
[1] => Array
(
[city] => Array
(
[0] => Array
(
[0] => Reduit
[1] => Ebe
)
[1] => Bees Village
[2] => Phoen Trunk Rd
[3] => Riv,Phoenix
[4] => St l Rd
[5] => Geoes Guibert St
[6] => Curepipe
)
[distance] => 1.4
)
[2] => Array
(
[city] => Array
(
[0] => Array
(
[0] => Reduit
[1] => Riv,Phoenix
)
[1] => St l Rd
[2] => Geoes Guibert St
[3] => Curepipe
)
[distance] => 3.4
)
[3] => Array
(
[city] => Array
(
[0] => Array
(
[0] => Reduit
[1] => Ebene
)
[1] => Belles Village
[2] => Phoenix Trunk Rd
[3] => Riverside,Phoenix
[4] => St Paul Rd
[5] => Georges Guibert St
[6] => Curepipe
)
[distance] => 22.4
)
)
i use,
$total = count($array)-1;
$current = $array[0]['distance'];
for($loop=1;$loop<$total;$loop++){
$next = $array[$loop]['distance'];
$current = $next;
$current = $current;
if ($next>$current){
print_r($current);
}
}
}
to get the index of all key, take the first index and compare it to other value using swaping.. but it doesn't work. someone has a fix please. thanks you

Answer 1

If I am understanding this correctly, you should not set $current = $next unless it is in the if statement, and it also appears you have an extra } in there. I also believe you want to change your > to a < in your if statement. This way it will tell if $next is the lesser of the two.
Try this:
for($loop=1;$loop<$total;$loop++){
$next = $array[$loop]['distance'];
if ($next<$current){
$current = $next;
print_r($current);
}
}
Hopefully it helps you out!