PHP: Sort the multidimensional array after the given value (not from the array)

I have a multidimensional array, that I need to sort after a given value (given from outside the array)

This is the array:

    array (
    [0] => array
    (
        ["tfl_gpac_color"] => array([0] => "FF0000"),
        ["tfl_gpac_start"] => "1",
        ["tfl_gpac_end"] => "32"
    ),
    [1] => array
    (
        ["tfl_gpac_color"] => array([0] => "0000FF"),
        ["tfl_gpac_start"] => "33",
        ["tfl_gpac_end"] => "64"
    ),
    [2] => array
    (
        ["tfl_gpac_color"] => array([0] => "800080"),
        ["tfl_gpac_start"] => "65",
        ["tfl_gpac_end"] => "96"
    )
)

I also have a given value from a config,

$strStartNumber = '33';

The strStartNumber changes, and I want the array sorted by this value in comparison with the 'tfl_gpac_start'.

If the number is 33,I want the first entry to be the one, with the 33 from 'tfl_gpac_start', if the value is 65, it should be starting with the 'tfl_gpac_start' with the number 65.

For '33' like this (compared to the one above):

array (
[0] => array
(
    ["tfl_gpac_color"] => array([0] => "0000FF"),
    ["tfl_gpac_start"] => "33",
    ["tfl_gpac_end"] => "64"
),

[1] => array
(
    ["tfl_gpac_color"] => array([0] => "800080"),
    ["tfl_gpac_start"] => "65",
    ["tfl_gpac_end"] => "96"
),
[2] => array
(
    ["tfl_gpac_color"] => array([0] => "FF0000"),
    ["tfl_gpac_start"] => "1",
    ["tfl_gpac_end"] => "32"
)

)

Thanks a lot for help, I tried several different ways, but I don't get it right...

EDIT: All values should be in the same place afterwards (should stay together), so the sort should only work on the key of the first array.

---

To rotate an array you might use this loop:

while ($array[0]['tfl_gpac_start'] !== $strStartNumber) {
    $array[] = array_shift($array);
}

Note that these numeric values are strings - you need strict comparison ===/!==, because there are quirk cases with implicit string conversion that happens while comparing without type check. On the other hand if none value matches you'll get into infinite loop - i'd be careful with that either. You might add a couter to protect yourself:

$count = count($array);
while(... && $count--) {
    ...
}