Question

I have an array similar to {A,B,C,D,E,F,G,H}. I would like to be able to pick an index or entry and have the array be reordered. So say if i had a function

reorder('C');

It would return the array starting at C, with anything before this index added on to the end, so this example would give

{C,D,E,F,G,H,A,B}

Is there a function that already does this?

Thanks

EDIT: I used this in the end

$key = array_search($imgToShow, $imgList);      
$sliceEnd = array_slice($imgList, 0, $key);     
$sliceStart = array_slice($imgList, count($sliceEnd));      
$array = array_merge($sliceStart, $sliceEnd);

Answer 1

What you can do is simple array shift magic. First order the array, if it’s not already ordered, if it is, skip this step:

sort($array);

Then find the value you want to start order by:

$key = array_search('C', $array);

Then remove the portion of the array before the found key:

$slice = array_splice($array, 0, $key);

Then append the slice at the end of the array:

array_splice($array, count($array), 0, $slice);