note 125828 added to function.array-unique

Here is a solution to make unique values keeping empty values for an array with keys : <?php function array_unique_kempty($array) { $values = array_unique($array); $return = array_combine(array_keys($array), array_fill(0,count($array),null)); return array_merge($return,$values); } $myArray = [ "test1" => "aaa", "test2" => null, "test3" => "aaa", "test4" => "bbb", "test5" => null, "test6" => "ccc", "test7" => "ddd", "test8" => "ccc" ]; echo "<pre>".print_r(array_unique_kempty($myArray),true)."</pre>"; /* Array ( [test1] => aaa [test2] => [test3] => [test4] => bbb [test5] => [test6] => ccc [test7] => ddd [test8] => ) */ ?> ---- Server IP: 45.112.84.4 Probable Submitter: 45.112.85.245 (proxied: 176.157.206.1) ---- Manual Page -- http://php.net/manual/en/function.array-unique.php Edit -- https://master.php.net/note/edit/125828 Del: integrated -- https://master.php.net/note/delete/125828/integrated Del: useless -- https://master.php.net/note/delete/125828/useless Del: bad code -- https://master.php.net/note/delete/125828/bad+code Del: spam -- https://master.php.net/note/delete/125828/spam Del: non-english -- https://master.php.net/note/delete/125828/non-english Del: in docs -- https://master.php.net/note/delete/125828/in+docs Del: other reasons-- https://master.php.net/note/delete/125828 Reject -- https://master.php.net/note/reject/125828 Search -- https://master.php.net/manage/user-notes.php