Re: [RFC Discussion] array_change_keys()

A bit skeptic here: 1. could you also provide the code for the benchmarks? I'd gladly measure them with an accurate tool 2. do we really need another array function that is basically an array_combine(array_map($someFunc, array_keys($arr)), $arr)? 3. and... do we really want another function that accepts arrays and not generic Traversable (and therefore also generators)? 4. what is the real-world benefit over just array_combine(array_map($someFunc, array_keys($arr)), $arr), except for the two additional function calls here? Cheers, Marco Pivetta http://twitter.com/Ocramius http://ocramius.github.com/ On 29 May 2016 at 15:13, Colin O'Dell <colinodell@gmail.com> wrote: > Hello everyone, > > I'd like to introduce a new RFC for your consideration and discussion: > https://wiki.php.net/rfc/array_change_keys This would add a > new function > named array_change_keys() which simplifies the process of re-keying an > array. > > PHP currently has an array_change_key_case() method, but this only allows > keys to be changed to upper- or lower-case; no method exists to change the > keys to some custom user-defined value. Although it's absolutely possible > to accomplish this without a special function, the alternate approaches > have several drawbacks: > > - Slower execution time compared to the proposed implementation. > - Multiple lines and/or function calls are required. > - Harder to understand the code's purpose with a quick glance. > - The result of a "foreach" approach cannot be passed into another > function without using an intermediate variable. > > A working implementation has been included with the RFC (huge thanks to > Jeremy Mikola for the heavy lifting here!) I've also requested this patch > be added to 3v4l.org; I'll notify everyone if/when that happens. > > I'd greatly appreciate if you could review this RFC and let me know your > thoughts. I'd be happy to answer any questions you might have. > > Regards, > > Colin O'Dell >