note 126215 added to function.array-key-first

A proper one-liner polyfill for version < 7.3: <?php function array_key_first((array) $a) { return array_keys($a)[0]; } ---- Server IP: 45.112.84.4 Probable Submitter: 45.112.85.242 (proxied: 109.251.121.9) ---- Manual Page -- https://php.net/manual/en/function.array-key-first.php Edit -- https://main.php.net/note/edit/126215 Del: integrated -- https://main.php.net/note/delete/126215/integrated Del: useless -- https://main.php.net/note/delete/126215/useless Del: bad code -- https://main.php.net/note/delete/126215/bad+code Del: spam -- https://main.php.net/note/delete/126215/spam Del: non-english -- https://main.php.net/note/delete/126215/non-english Del: in docs -- https://main.php.net/note/delete/126215/in+docs Del: other reasons-- https://main.php.net/note/delete/126215 Reject -- https://main.php.net/note/reject/126215 Search -- https://main.php.net/manage/user-notes.php