note 88521 added to function.in-array

If you have to check very often (e.g. in a loop) against $haystack this one is much faster: $flipped_haystack = array_flip($haystack); [LOOP] if (isset($flipped_haystack[$needle])) ... [END LOOP] ---- Server IP: 69.147.83.197 Probable Submitter: 91.54.77.140 ---- Manual Page -- http://www.php.net/manual/en/function.in-array.php Edit -- https://master.php.net/note/edit/88521 Del: integrated -- https://master.php.net/note/delete/88521/integrated Del: useless -- https://master.php.net/note/delete/88521/useless Del: bad code -- https://master.php.net/note/delete/88521/bad+code Del: spam -- https://master.php.net/note/delete/88521/spam Del: non-english -- https://master.php.net/note/delete/88521/non-english Del: in docs -- https://master.php.net/note/delete/88521/in+docs Del: other reasons-- https://master.php.net/note/delete/88521 Reject -- https://master.php.net/note/reject/88521 Search -- https://master.php.net/manage/user-notes.php