Req #48543 [Opn->Fbk]: Introduction of a substitute for array_change_key_case which takes a callback.

Edit report at https://bugs.php.net/bug.php?id=48543&edit=1 ID: 48543 Updated by: levim@php.net Reported by: simon at stienen dot name Summary: Introduction of a substitute for array_change_key_case which takes a callback. -Status: Open +Status: Feedback Type: Feature/Change Request -Package: Feature/Change Request +Package: Arrays related PHP Version: 5.3.0RC3 Block user comment: N Private report: N New Comment: Is this something you are still interested in? Previous Comments: ------------------------------------------------------------------------ [2009-06-13 11:21:40] simon at stienen dot name Description: ------------ While array_change_key_case allows for changing array keys in regards to capitalization, it is very limited in its function. Therefore I request the introduction of a new function (for the sake of the discussion, I'll call it "array_change_keys") that takes an array and a callback and then calls the callback for each key, passing the key as a parameter (possibly also passing the value as another parameter) and replaces the old key with the return value of the function call - under the same constraints as mentioned in http://php.net/array_change_key_case in terms of replacing elements with colliding keys. Signature: array array_change_keys ( array $input, callback $callback ) Reproduce code: --------------- <?php $a = array( 'peter' => 'm, 71', 'paul' => 'm, 72', 'mary' => 'f, 73' ); $b = array_change_keys($a, 'strlen'); Expected result: ---------------- $b === array( 5 => 'm, 71', 4 => 'f, 73' ) ('paul' was overridden by the element 'mary' which resulted in the same key name) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=48543&edit=1