Question

Hi thinking i have an array like this :

[0]=>[
   [0]=>'Hey',
   [1]=>'H',
   [2]=>'He',



]

now i would like to sort by number chars and return somenthing like this:

[0]=>[
   [0]=>'H',
   [1]=>'He',
   [2]=>'Hey',
]

maybe the answer is array_sort() but i’m not able to do that. also i would not like to loop the array to check the number chars of values, but if it’s the only way i need to use anyway 😛

BTW

how to return this same array ordered by [‘name’] key number of chars ASC (h – he -hey -heyh – heyhey )?

array(5) {
  [0]=>
  array(2) {
    ["id"]=>
    object(MongoId)#26 (1) {
      ["$id"]=>
      string(24) "4e72858ccaa47ca608030000"
    }
    ["name"]=>
    string(4) "h"
  }
  [1]=>
  array(2) {
    ["id"]=>
    object(MongoId)#29 (1) {
      ["$id"]=>
      string(24) "4e72858ccaa47ca608040000"
    }
    ["name"]=>
    string(10) "hey"
  }
  [2]=>
  array(2) {
    ["id"]=>
    object(MongoId)#31 (1) {
      ["$id"]=>
      string(24) "4e72858ccaa47ca608400000"
    }
    ["name"]=>
    string(1) "heyhey"
  }
  [3]=>
  array(2) {
    ["id"]=>
    object(MongoId)#33 (1) {
      ["$id"]=>
      string(24) "4e72858ccaa47ca6081a0000"
    }
    ["name"]=>
    string(6) "he"
  }
  [4]=>
  array(2) {
    ["id"]=>
    object(MongoId)#35 (1) {
      ["$id"]=>
      string(24) "4e72858ccaa47ca6083d0000"
    }
    ["name"]=>
    string(3) "heyh"
  }
}

Answer 1

If you want to sort by the number of characters, usort is the way to go. It lets you define your own sorting function.

function lengthsort($s1, $s2) {
    if (strlen($s1['name']) < strlen($s2['name'])) {
        return -1;
    } elseif (strlen($s1['name']) > strlen($s2['name'])) {
        return 1;
    } else {
        return 0;
    }
}
usort($array, 'lengthsort');