I have a result set from a DB that returns the following array.... how do I implode this into a comma delimited string?
Array
(
[0] => Array
(
[user_id] => 2
)
[1] => Array
(
[user_id] => 5
)
[2] => Array
(
[user_id] => 11
)
)
$t = array_map(function (array $a) { return $a["user_id"]; }, $original_array);
$result = implode(",", $t);
(PHP 5.3+, the closure must be turned into a regular function for earlier versions)
Scheme is often taught in introductory programming courses. Do you think the beginner PHP programmer cannot understand something a freshman CS undergraduate can?$resultArray = array();
foreach($myNestedArray as $item) {
$resultArray[]=$item['user_id'];
}
$resultString = implode(',', $resultArray);
Works on all recent PHP versions.
