How to make array first value as key for the second value as value in php array

Question

I have arrays structured like below:

array(2) {
  ["uid"]=>
  string(2) "39"
  ["name"]=>
  string(18) "Manoj Kumar Sharma"
}
array(2) {
  ["uid"]=>
  string(2) "47"
  ["name"]=>
  string(11) "S kK Mishra"
}

I want these array should be like this below:

array(4) {
      [39]=>
      string(18) "Manoj Kumar Sharma"
      [47]=>
      string(11) "S kK Mishra"
    }

How can i achieve this ? Please help me.

just use a foreach, then assign it in another array using uid as the key and name as the value, you can just try — Kevin
– Kevin, Commented Feb 17, 2016 at 8:14
Above one is single multidimensional array or two different single- dimensional array? — Death-is-the-real-truth
– Death-is-the-real-truth, Commented Feb 17, 2016 at 8:15
@A-2-A, if it isn't multidimensional array but you need it to be that way - you can just make it multidimensional array. So, where is the difference, exactly? — ankhzet
– ankhzet, Commented Feb 17, 2016 at 9:04

Sougata Bose · Accepted Answer · 2016-02-17 08:28:31Z

9

Updated

You can try this with array_column() -

$new = array_column($arr, 'name', 'uid');

Demo

Note: array_column() not available for PHP < 5.5

If you are using lower versions of PHP the use a loop.

$new = array();
foreach($your_array as $array) {
    $new[$array['uid']] = $array['name'];
}

edited Feb 17, 2016 at 8:28

answered Feb 17, 2016 at 8:17

Sougata Bose

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5 Comments

deceze Over a year ago

array_column accepts a third parameter, which would make this even easier. Read the documentation you link to again yourself.

Sougata Bose Over a year ago

@deceze Thanks. Never went through that. :)

Mandy Over a year ago

thats working fine as i required. but i have one issue with my current query which i am executing. $results = db_query("SELECT DISTINCT u.uid as uid, u.name as name FROM users u WHERE u.uid IN (SELECT p.endpoints_entity_id as uid FROM field_data_endpoints p JOIN relation r ON r.rid = p.entity_id WHERE p.bundle = 'subuser' AND p.deleted = 0 AND p.delta = 0 AND r.uid = $user->uid)")->fetchAll(PDO::FETCH_ASSOC); This query creating duplicate array. How can i resolved this issue.

Sougata Bose Over a year ago

You can apply array_unique to the array. Can you add the actual array you are getting.

ᴍᴇʜᴏᴠ Over a year ago

Googlers: heads up, if you simply need to re-index the array, set column_key (2nd argument) to null, and index_key to the value name that needs to become the key

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