Question

Inside a document I want to store unique phone numbers for each person in my collection like so:

phones: {
        "5551112222": {
            extension: "101",
            type: "Mobile"
        },
        "8005554444": {
            extension: "225",
            type: "Work"
        },
    },
name: {
  first: "john",
  last: "smith"
}

My PHP code to access this, which lets me access the extension and type, but how do I access the number part as $d obviously does not work as it just returns the whole array?

  foreach ($cursor['phones'] as $d) {
   echo 'number: ' . $d . '<br />ext. ' . $d['extension'] . '<br />type: ' . $d['type'];

Answer 1

According to your var_dump output of the $cursor['phones'] variable:

array(2) { [5551112222]=> array(2) { [“extension”]=> string(3) “101”
[“type”]=> string(6) “Mobile” } [8005554444]=> array(2) {
[“extension”]=> string(3) “225” [“type”]=> string(4) “Work” } }

Change your code to:

  foreach ($cursor['phones'] as $number => $extra) {
      echo 'number: ' . $number . '<br />ext. ' . $extra['extension'] . '<br />type: ' . $extra['type'];

The reason is simple, when using the foreach loop in the following format:

foreach($arr as $d)

$d will contain the Value of the pair.

From the php manual:
http://php.net/manual/en/control-structures.foreach.php

foreach (array_expression as $value)
    statement
foreach (array_expression as $key => $value)
    statement