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  1. <?php
  2. $array = [
  3. 	'hello' => 'world',
  4. 	'doing' => [
  5. 		 'hello' => 'universe',
  6. 		 'going' => [
  7. 		 	'hello' => 'existence'
  8. 		 ],
  9. 		 'moving' => [
  10. 		 	 'answer' => 42,
  11. 		 ]
  12.     ]
  13. ];
  14. function levelUp(&$array, $level = 1) {
  15. 	$array['id'] = $level;
  16. 	foreach($array as $key => &$value) {
  17. 		if(is_array($value)) {
  18. 			levelUp($value, $level + 1);
  19. 		}
  20. 	}
  21. }
  22. levelUp($array);
  23.  
  24. var_dump($array);
  25. // your code goes here
Success #stdin #stdout 0.02s 23444KB
comments (?)
stdin 
Standard input is empty
stdout 
array(3) {
  ["hello"]=>
  string(5) "world"
  ["doing"]=>
  array(4) {
    ["hello"]=>
    string(8) "universe"
    ["going"]=>
    array(2) {
      ["hello"]=>
      string(9) "existence"
      ["id"]=>
      int(3)
    }
    ["moving"]=>
    array(2) {
      ["answer"]=>
      int(42)
      ["id"]=>
      int(3)
    }
    ["id"]=>
    int(2)
  }
  ["id"]=>
  int(1)
}
https://ideone.com/NhKABF
language:
PHP (php 7.3.5)
created:
6 years ago
visibility:
public

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