In PHP, I have an array like this:
Array (
[12] => Dec
[01] => Jan
[02] => Feb
[03] => Mar
[04] => Apr
[05] => May
[06] => Jun
[07] => Jul
[08] => Aug
[09] => Sep
[10] => Oct
[11] => Nov
)
I then do something like this: $reverse_months = array_reverse($months);
What I don't understand is why the result coming out like this:
Array (
[0] => Nov
[1] => Oct
[09] => Sep
[08] => Aug
[07] => Jul
[06] => Jun
[05] => May
[04] => Apr
[03] => Mar
[02] => Feb
[01] => Jan
[2] => Dec
)
You can clearly see the last three months of the years got wrong indexes compare to original $months array :-(
Could anyone is kind enough to explain why this weird behavior happens and how can I fix it please? The outcome result is my desirable outcome except the wrong array index for month Oct, Nov and Dec. Thank you!
10, 11 and 12 are numeric keys, where 01, 02 and so on are named keys, what php does is reenumerating the numbered keys. There are 3 of them so 0,1,2. Named keys are not reenumerated (How should they ?). To also preserve integer keys, use
array_reverse($months, true);