Implement a function distinct(...), which expects an array of integers and sorts these ascendingly. The array shall not contain repetitions of any integer value but '1'. Repetitions of '1' should be the last values of the array.

gistfile1.txt

<?php

function distinct($input){
    $result = array_unique($input);
    sort($result);
    $key = array_search(1, $result);
    if(false !== $key):
        array_push($result, 1);
    endif;
    print_r($result);
}

$input = array(3,3,1,1,9);
distinct($input);

?>