How to correctly distribute (what?)?

Question

PHP

Hello!
There are two ranges of numbers. From 1 to 10 thousand, from 1 to 10.
It is necessary to assign a number from the second range to each number from the first range so that the numbers from the second range are divided evenly, but in a different order. The number 714 of the first range can mean 8, and 715 - 3, but in general, such distributions should be more or less the same.
Ultimately, you are interested in a function that receives a number from 1 to 10 thousand by returning a number from 1 to 10.
Random is excluded.
Thank you!

Answer 1

For inspiration:

• the remainder of the division $n % 10will always return from 0 to 9. Add 1
  
• hash algorithms give noticeably different results for almost similar strings: sha1() , md5()
  
• any generated noise. For example, Perlin noise and on (Perlin noise). It is always predictable and depends on the input parameters. It looks random though. You need a one-dimensional version of it. Multiply by 10, floor() + 1
  
• see for example Halton sequence is also a pseudo-random deterministic sequence. Write its implementation, choose some seed. The initial number from 1 to 10000 is the input coordinate. The output is 0..1, map to your range of 1..10 and round.
  

Answer 2

$z = 1; 
for ($i = 1; $i <= 10000; $i++) {

    echo $i . $z;

if ($z == 10)
$z = 1;
else
++$z;
    
}

Answer 3

function makeMeSmall($int){
   return ceil($int/1000);
}

function makeMeSmallAgain($int){
   return substr($int,-1)?substr($int,-1):1;
}