I have an array that looks like this
Array
(
[1] => Array
(
[name] => Zeze
[city] => Denver,
[state] => Colorado,
[country] => United States
[user_id] => 1
[cars] => Array
(
[140] => Array
(
[cars_name] => BMW
)
[162] => Array
(
[cars_name] => Mazda
)
)
)
[8] => Array
(
[name] => Lex
[city] => Schwelm,
[state] => North Rhine-Westphalia,
[country] => Germany
[user_id] => 5
[cars] => Array
(
[140] => Array
(
[cars_name] => Mercedes
)
[162] => Array
(
[cars_name] => Audi
)
)
)
)
I need to extract the value from user_id and put it in a comma separated string.
For the above array, I would like to get:
1,5
I'm a bit confused how to loop this array with foreach and then how would I create the string? Or is there a better way?
$uids = Array();
foreach($users as $u) $uids[] = $u['user_id'];
$list = implode(",",$uids);
This is assuming your array is named $users and $list is the output.
Iterate over each item in the multimensional array with a foreach loop, and treat the item as a normal array. Then push the user_id value into another array and implode it with a comma to make it comma separated.
$user_ids = array();
foreach($arr in $multidim_arr) {
array_push($user_ids, $arr["user_id"]);
}
$user_ids = implode(",", $user_ids);
You can use a combination of array_map and implode:
function get_uid($el) {
return $el["user_id"];
}
$csv = implode(array_map("get_uid", $your_array), ',');
echo $csv;
This will be the most easier method:
echo implode(",", array_column($myArray, "user_id"));
$stateId = Array (
[0] => Array
(
[id] => 9
[state_id] => 81
[rto_id] => 82
[is_active] => 1
)
[1] => Array
(
[id] => 10
[state_id] => 82
[rto_id] => 83
[is_active] => 1
)
);
$stateIds = implode(",", array_column($stateId, "state_id"));
echo $stateIds;