Re: Only variables can be passed by reference

> On 4 Dec 2014, at 19:58, Kalle Sommer Nielsen <kalle@php.net> wrote: > > I think we should solve these on a case-by-case basis, I can think of > one reason why the warning exists, and that is because it modifies the > array pointer and the argument is sent by reference. But I think we > can safely remove the warning if the parameter was not sent by > reference, as then we would expect the user to use the return value of > array_pop() to assign the value from. I don't think we should remove > warnings if you pass a statically value to it, sure some APIs can > return a variable length/dynamic array but then I think they should be > referenced into a variable and then passed to the function as they are > most likely going to be used later, I can't really think of a case > where it would be useful to send a return value of some API call to > array_multisort() and then use the boolean true or false to check if > it was a successful call for example.. Doing it case-by-case seems like the most pragmatic approach. That being said, I’m not sure there are many cases, if any, for which I don’t think a warning should be shown. It feels like an abuse of the internal array pointer functions (next/prev/key/extract/etc.) to use them like this. It’d probably be better to add non-by-ref functions that do the same thing instead. -- Andrea Faulds http://ajf.me/