<?php

$myarray = array(1,0.334,-0.334,-1);

//create a copy and sort
$myarray_copy = $myarray;
rsort($myarray_copy);
//reverses key and values
$myarray_copy = array_flip($myarray_copy);
//create result by using keys from sorted values + 1
foreach($myarray as $val)
    $myarray2[] = ($myarray_copy[$val]+1);
//print final array
print_r($myarray2);
print_r($myarray);


?>