How to set up sorting like 1-2-10-11 for an array in PHP?

Question

PHP

I have an array like this:

Array (
  [import_files/5d/namers.jpg] => Array ([description] => 1 колечко блестящее),
  [import_files/5d/name31.jpg] => Array ([description] => 10 морозное утро),
  [import_files/5d/name13.jpg] => Array ([description] => 4 морозное утро),
  [import_files/5d/name2.jpg] => Array ([description] => 8 колечко матовое)
  [import_files/5d/name12.jpg] => Array ([description] => 12 морозное утро),
  [import_files/5d/name14.jpg] => Array ([description] => 5 леопард),
)

I need to sort it keeping the key-value relation by value alphabetically. I use it for this asort();- but it sorts not quite correctly, the output is sorted like this (I indicate only the first digits):

• one
  
• ten
  
• 12
  
• 4
  
• 5
  
• eight
  

I'd like to get one like this:

• one
  
• 4
  
• 5
  
• eight
  
• ten
  
• 12
  

Answer 1

php.net/manual/en/function.uasort.php

$array = uasort($array, function(a, b){

тут надо сравнить буквы (если по алфавиту) 
из a['description'] с b['description']
и вернуть в $res -1, 0 или 1 соответственно

return $res;

});

print_r($array);

Answer 2

OK, Google...
https://secure.php.net/manual/en/function.natsort.php

Answer 3

asort($arr, SORT_NUMERIC);
UPD: works for me

$arr = [
    'a' => '1 a',
    'b' => '10 b',
    'c' => '4 c',
    'd' => '8 d',
    'e' => '12 e',
    'f' => '5 f'
];

asort($arr);
var_dump($arr);

asort($arr, SORT_NUMERIC);
var_dump($arr);

array(6) {
  'a' =>
  string(3) "1 a"
  'b' =>
  string(4) "10 b"
  'e' =>
  string(4) "12 e"
  'c' =>
  string(3) "4 c"
  'f' =>
  string(3) "5 f"
  'd' =>
  string(3) "8 d"
}
array(6) {
  'a' =>
  string(3) "1 a"
  'c' =>
  string(3) "4 c"
  'f' =>
  string(3) "5 f"
  'd' =>
  string(3) "8 d"
  'b' =>
  string(4) "10 b"
  'e' =>
  string(4) "12 e"
}