note 126904 added to function.array-keys

a noteworthy behavior $array = array("blue", null, "green", 0, false); print_r(array_keys($array, null|0|false)); output for php 8.1.3 : Array ( [0] => 1 [1] => 3 [2] => 4 ) output for php 7.3.33 Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 [4] => 4 ) ---- Server IP: 45.112.84.4 Probable Submitter: 80.90.5.135 (proxied: 2a00:5400:e053:733:a4f0:614c:1217:371c) ---- Manual Page -- https://php.net/manual/en/function.array-keys.php Edit -- https://main.php.net/note/edit/126904 Del: integrated -- https://main.php.net/note/delete/126904/integrated Del: useless -- https://main.php.net/note/delete/126904/useless Del: bad code -- https://main.php.net/note/delete/126904/bad+code Del: spam -- https://main.php.net/note/delete/126904/spam Del: non-english -- https://main.php.net/note/delete/126904/non-english Del: in docs -- https://main.php.net/note/delete/126904/in+docs Del: other reasons-- https://main.php.net/note/delete/126904 Reject -- https://main.php.net/note/reject/126904 Search -- https://main.php.net/manage/user-notes.php