note 116643 added to function.array-walk-recursive

This how I use array_walk_recursive() to implement array_flatten() that actually preserves keys, if they are provided inside the incoming parameter: static public function array_flatten($inObj) { $outObj = []; $inObj=[$inObj]; // Thanks to which nonArray param is also welcome here. array_walk_recursive($inObj, function ($incell, $inkey) use (&$outObj) { $outObj[$inkey] = $incell; } ); return $outObj; } Note that you are responsible for ensuring that the keys in $inObj are globally unique (and either string or int type), otherwise, I don't know the worst that can happen. Probably later elements overwrite earlier ones having the same key name, rather than appending to the final $outObj to return. ---- Server IP: 72.52.91.14 Probable Submitter: 77.253.211.255 ---- Manual Page -- http://php.net/manual/en/function.array-walk-recursive.php Edit -- https://master.php.net/note/edit/116643 Del: integrated -- https://master.php.net/note/delete/116643/integrated Del: useless -- https://master.php.net/note/delete/116643/useless Del: bad code -- https://master.php.net/note/delete/116643/bad+code Del: spam -- https://master.php.net/note/delete/116643/spam Del: non-english -- https://master.php.net/note/delete/116643/non-english Del: in docs -- https://master.php.net/note/delete/116643/in+docs Del: other reasons-- https://master.php.net/note/delete/116643 Reject -- https://master.php.net/note/reject/116643 Search -- https://master.php.net/manage/user-notes.php