Sorting array of numbers into specific range

Question

I have an array in PHP, Basically all I want to do is display the following array into ranges of 5. e.g: 0-5, 6-10, 11-15, 16-20, 21-25 etc:

Array
(
    [0] => 00
    [1] => 01
    [2] => 02
    [3] => 03
    [4] => 04
)

I have looked at the range() function - but this seems to output the single numbers from inputting a range. I'm sure this is really simple - thanks in advance:

After using arraychunk() I get the following output:

Array
(
    [0] => Array
    (
        [0] => 48
        [1] => 46
        [2] => 44
        [3] => 42
        [4] => 40
    )

    [1] => Array
    (
        [0] => 39
        [1] => 38
        [2] => 37
        [3] => 36
        [4] => 35
    )

    [2] => Array
    (
        [0] => 34
        [1] => 33
        [2] => 32
        [3] => 31
        [4] => 30
    )

    [3] => Array
    (
        [0] => 29
        [1] => 28
        [2] => 27
        [3] => 26
        [4] => 25
    )
)

This in theory works as I asked - however, these are actually years so in the first array chunk I looking to output years 1-5. My original array of numbers doesn't contain every year. e.g 1,3,4,6,7, not 1,2,3,4,5

zavg · Accepted Answer · 2015-01-27 09:46:36Z

1

If I have understood you correctly you may split array into chunks with array_chunk function

print_r(array_chunk($input_array, 5));

answered Jan 27, 2015 at 9:46

zavg

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2 Comments

Chris Over a year ago

This is perfect, but how would i add the label e.g. 0-5, 6-10 to each array chunk @zavg ?

zavg Over a year ago

you can store them as elements of other array with meaningful indexes (or just using the knowledge that i-st element of array represent elements in range [5*i; 5*(i+1)]

Wilon · Accepted Answer · 2015-01-27 10:08:15Z

0

Try this. Use str_pad().

$nums = range(0, 99);
foreach ($nums as $v) {
    $arr[] = str_pad($v, 2, '0',STR_PAD_LEFT);
}
$res = array_chunk($arr, 5);
print_r($res);

answered Jan 27, 2015 at 10:08

Wilon

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