Number Sorting

I have a some code that lets me sort my list of array in to different combinations how ever. 

Instead of refreshing page each time

Is there away to just get a printed list of all the different combinations?

PHP Code:

$my_array = array('1', '5', '8');

 for ($i = 0; $i <3; $i++) {
   
    $random = array_rand($my_array);  # one random array element number
    
    $get_it = $my_array[$random];    # get the letter from the array
    
    echo $get_it;

    unset($my_array[$random]);
 }