Question

I am having trouble trying to figure out how to get data ordered like below. The total numbers don’t matter; it would follow the same pattern from any number in the logical order of 0, 1, 2, 3, 4, 5, 6, etc. So essentially, starting at 0, 2, 3, 4, etc. where 1 would be placed after the maximum number, and where 0 can be a variable I set statically. I am having issues with progressing all the way to max number and then continuing, e.g.

..., 97, 98, 99, 100, 1, 2, ...

and then progressing with the order,

..., 98, 99, 100, 1, 2, 3, ...

and so on until 1, 2, 3, 4, 5, 6, …

and store this all into the multidimensional array below.

$set = array(
    array('0','0','0','0','0','0','0','0','0','0','0'),
    array('0','2','3','4','5','6','7','8','9','10','1'),
    array('0','3','4','5','6','7','8','9','10','1','2'),
    array('0','4','5','6','7','8','9','10','1','2','3'),
    array('0','5','6','7','8','9','10','1','2','3','4'),
    array('0','6','7','8','9','10','1','2','3','4','5'),
    array('0','7','8','9','10','1','2','3','4','5','6'),
    array('0','8','9','10','1','2','3','4','5','6','7'),
    array('0','9','10','1','2','3','4','5','6','7','8'),
    array('0','10','1','2','3','4','5','6','7','8','9'),
    array('0','1','2','3','4','5','6','7','8','9','10'),
); 

I did the above because I couldn’t figure out a looping pattern; if I could figure that out I wouldn’t need to enter in the data manually and could create a form by which any number could be chosen, following this pattern.

Answer 1

Notice that other than the first row and column, each row is just the previous shifted left, with the next value added on:

$max = 10;

// First row (full of 0)
$set = array(array_fill(0, $max + 1, 0));

$row = array();
for($i = 1; $i <= $max; $i++)
    $row[] = $i;
$row[] = 1; // $row  = [2,3,4,...,$max,1]

for($i = 0; $i < $max; $i++){
    $set[] = array_merge(array(0), $row);
    $row = array_map(function($x) use ($max){ // Requires PHP 5.3
        $result = ($x + 1) % $max;
        return 0 === $result ? $max : $result;
    }, $row);
}

Codepad

It’s of course fairly trivial to make this store strings instead of integers if you require that.