Looping through an Array in Php

Question

Can't seem to figure this out. I struggle so badly with arrays. I am trying to get the data out of this array and keep getting errors.

I tried using this code below and several other attempts and failed miserably. What's the best way to remember how to do this? Everytime I don't code Php for a couple months I seem to forget everything...

  foreach( $data as $key) { 
            foreach( $key as $value => $sum) {
              echo $sum;
            } 
        }





Array
    (
        [result] => OK
        [data] => Array
            (
                [destination] => 
                [tracking] => Array
                    (
                        [0] => Array
                            (
                                [loc] => Array
                                    (
                                        [city] => 
                                        [territory] => ME
                                        [country] => US
                                    )

                                [desc] => Delivered
                                [stamp] => 1384977300
                                [time] => 11/20/13 11:55 am
                                [locStr] => ME, US
                                [geo] => Array
                                    (
                                        [lat] => 45.253783
                                        [lon] => -69.4454689
                                    )

                            )

I'm just trying to loop through this Array. I know, newbie question but I'm not much of a developer but I'm trying to learn. I mostly do design work and some frontend JS. — Kustom
– Kustom, Commented Nov 24, 2013 at 1:20

Michael D. · Accepted Answer · 2013-11-24 01:25:37Z

1

iterate through tracking?

if ($arr['result'] == "OK") {

  for ($i=0; $i < count( $arr['data']['tracking'] ); $i++) {
    // do stuff with $arr['data']['tracking'][$i]
  }
}

answered Nov 24, 2013 at 1:25

Michael D.

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2 Comments

Kustom Over a year ago

Doesnt seem to work, not sure why... I also was trying this based on another thread but getting bad results: foreach($data['data']['tracking'][0] as $arr) { echo $arr['desc']; echo $arr['time']; }

Kustom Over a year ago

Right on target, I just got it working. Thanks alot for the help, much appreciated, I'm on the right track now.

Michael D. · Accepted Answer · 2013-11-24 01:56:35Z

1

In php there are basically two different type of arrays. key/value based array and element based array. An element based array is

$arr = array("a", "b", "c");
echo $arr[0]; //  prints a
echo $arr[2]; //  prints c

   //  hash - k/v array
   $arr = array("monkey" => "banana", "chicken" => "egg");
   echo $arr["monkey"]; //  prints banana

   //  combination 
  $arr = array( array("monkey" => array("banana", "water")));
  echo $arr[0]["monkey"][1]; // prints water

hope this helps.

answered Nov 24, 2013 at 1:56

Michael D.

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1 Comment

Kustom Over a year ago

I think I made this problem way harder than it was but thanks for the help.

Restie · Accepted Answer · 2013-11-24 01:57:52Z

1

I think your code is not wrong. you have three dimensional array. you have only two foreach. you have to loop within a loop within a loop. and if you try to echo an array Ofcourse you will have an error so you should check first if that output is an array or not.

answered Nov 24, 2013 at 1:57

Restie

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