note 123301 added to function.array-key-first

For PHP < 7.3.0: <?php if (!function_exists('array_key_first')) { /** * Gets the first key of an array * * @param array $array * @return mixed */ function array_key_first(array $array) { if (count($array)) { reset($array); return key($array); } return null; } } echo array_key_first([ 'foo' => 'value1', 'bar' => 'value2', ]); // Output: foo ---- Server IP: 208.43.231.9 Probable Submitter: 46.148.202.46 ---- Manual Page -- http://php.net/manual/en/function.array-key-first.php Edit -- https://master.php.net/note/edit/123301 Del: integrated -- https://master.php.net/note/delete/123301/integrated Del: useless -- https://master.php.net/note/delete/123301/useless Del: bad code -- https://master.php.net/note/delete/123301/bad+code Del: spam -- https://master.php.net/note/delete/123301/spam Del: non-english -- https://master.php.net/note/delete/123301/non-english Del: in docs -- https://master.php.net/note/delete/123301/in+docs Del: other reasons-- https://master.php.net/note/delete/123301 Reject -- https://master.php.net/note/reject/123301 Search -- https://master.php.net/manage/user-notes.php