note 117368 added to function.array-column

Some remarks not included in the official documentation. 1) array_column does not support 1D arrays, in which case an empty array is returned. 2) The $column_key is zero-based. 3) If $column_key extends the valid index range an empty array is returned. ---- Server IP: 195.139.129.18 Probable Submitter: 156.116.8.98 ---- Manual Page -- http://php.net/manual/en/function.array-column.php Edit -- https://master.php.net/note/edit/117368 Del: integrated -- https://master.php.net/note/delete/117368/integrated Del: useless -- https://master.php.net/note/delete/117368/useless Del: bad code -- https://master.php.net/note/delete/117368/bad+code Del: spam -- https://master.php.net/note/delete/117368/spam Del: non-english -- https://master.php.net/note/delete/117368/non-english Del: in docs -- https://master.php.net/note/delete/117368/in+docs Del: other reasons-- https://master.php.net/note/delete/117368 Reject -- https://master.php.net/note/reject/117368 Search -- https://master.php.net/manage/user-notes.php