note 59539 added to function.array-keys

The position of an element. One can apply array_keys twice to get the position of an element from its key. (This is the reverse of the function by cristianDOTzuddas.) E.g., the following may output "yes, we have bananas at position 0". <?php $a = array("banana" => "yellow", "apple" = "red"); $k = get_some_fruit(); if (isset($a[$k])) { list($pos) = array_keys(array_keys($a), $k); print "yes, we have {$k}s at position $pos\n"; } ?> Not amazingly efficient, but I see no better alternative. ---- Manual Page -- http://www.php.net/manual/en/function.array-keys.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+59539 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+59539&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+59539&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+59539&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+59539&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+59539&report=yes&reason=non-english Delete: already in docs -- http://master.php.net/manage/user-notes.php?action=delete+59539&report=yes&reason=already+in+docs Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+59539&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+59539&report=yes Search -- http://master.php.net/manage/user-notes.php