note 87542 deleted from function.key by cmb
| From: | cmb@php.net | Date: | Mon, 20 Jun 2016 15:32:26 +0000 |
| Subject: | note 87542 deleted from function.key by cmb | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-205762@lists.php.net to get a copy of this message | ||
Note Submitter: michael
----
Here is an improved version of the KeyName function below. It is simpler and faster, especially on
large arrays as it runs in O(1) instead of O(n).
<?php
function KeyName(array $a, $pos) {
$temp = array_slice($a, $pos, 1, true);
return key($temp);
}
?>
Also, KeyName($a, -1) will return the last key, etc.