note 124451 added to function.array-key-first

Another way to get it: <?php $array = [5 => 'x', 10 => 'y', 15 => 'z']; $the1stKey = array_keys($array)[0]; echo $the1stKey; ?> Will trigger warning if the $array is empty or if we pass a string or something else... ---- Server IP: 208.43.231.9 Probable Submitter: 185.85.3.168 (proxied: 37.248.50.217) ---- Manual Page -- http://php.net/manual/en/function.array-key-first.php Edit -- https://master.php.net/note/edit/124451 Del: integrated -- https://master.php.net/note/delete/124451/integrated Del: useless -- https://master.php.net/note/delete/124451/useless Del: bad code -- https://master.php.net/note/delete/124451/bad+code Del: spam -- https://master.php.net/note/delete/124451/spam Del: non-english -- https://master.php.net/note/delete/124451/non-english Del: in docs -- https://master.php.net/note/delete/124451/in+docs Del: other reasons-- https://master.php.net/note/delete/124451 Reject -- https://master.php.net/note/reject/124451 Search -- https://master.php.net/manage/user-notes.php