从多维数组中的特定数组获取所有值

Question

I've been searching around quite a bit for an answer for this, but I'm afraid that I've been unable to figure out a solution to this problem. I've created a multidimensional array which includes zip code information. However, I've been unable to pull the values out of it in the way that I need to. Here's an example of the print_r():

Array ( 
[0] => Array ( 
    [0] => 59101 
    [1] => 0.0 )
[1] => Array ( 
    [0] => 59102 
    [1] => 5.0 )
[2] => Array ( 
    [0] => 59105 
    [1] => 6.8 )
[3] => Array ( 
    [0] => 59106 
    [1] => 9.2 )
[4] => Array ( 
    [0] => 59037 
    [1] => 12.7 )
[5] => Array ( 
    [0] => 59044 
    [1] => 13.9 )
[6] => Array ( 
    [0] => 59002 
    [1] => 16.6 )
[7] => Array ( 
    [0] => 59079 
    [1] => 19.3 )

)

I need to look through the array for a specific zip code, and then get distance (the second value in each array) associated with that zip code. I'd considered restructuring the array, but I'm unsure of how to accomplish it. Here's my current code:

EDIT## sorry, I may not have been clear. The below code is what I'm using to build the array, not to extract information from the array. I have not idea how to get the information out of the array.

$rArray = array();
foreach ($points as $point){
    $zips = $point->Postcode;
    $dists =  number_format($point->D,1);
    array_push($rArray,array($zips,$dists));
}

Any thoughts on the best way to accomplish this? Thanks!

Answer 1

This?

EDIT: After your question update.

function getDistanceByZip($zip) {
   $array = //your array here;
   foreach($array as $value) {
      if($zip == $value[0]) {
         return $value[1];
      }
   }
   return false;
}

Answer 2

Maybe this?

foreach ($points as $point){
   if ($point->Postcode === $codeIamLookingFor) {
       echo "Distance: " . number_format($point->D, 1);
   }
}

Answer 3

function arrayseek($array, $zip){
   foreach($array as $k => $v){
       if($v[0] == $zip){
           return $v[1];
       }
   }
   return false;
}