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  1. <?php
  2.  
  3. $arr=array (
  4.   23 => 
  5.   array (
  6.     0 => 9,
  7.     1 => 13,
  8.     2 => 2,
  9.     3 => 11,
  10.     4 => 4,
  11.     5 => 5,
  12.     6 => 6,
  13.     7 => 12,
  14.     8 => 1,
  15.     9 => 7,
  16.     10 => 10,
  17.     11 => 8,
  18.     12 => 3,
  19.   ),
  20.   1 => 
  21.   array (
  22.     0 => 9,
  23.     1 => 13,
  24.     2 => 2,
  25.     3 => 11,
  26.     4 => 4,
  27.     5 => 5,
  28.     6 => 6,
  29.     7 => 14,
  30.     8 => 12,
  31.     9 => 1,
  32.     10 => 7,
  33.     11 => 10,
  34.     12 => 8,
  35.     13 => 3,
  36.   )
  37. );
  38. $final_arr=array();
  39. foreach($arr as $r){
  40. 	//$r=array_unique($r);
  41. 	$final_arr=array_merge($final_arr,$r);
  42. 	}
  43.  
  44. 	$final_arr=array_unique($final_arr);
  45. 	print_r($final_arr);
Success #stdin #stdout 0.01s 52488KB
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Standard input is empty
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Array
(
    [0] => 9
    [1] => 13
    [2] => 2
    [3] => 11
    [4] => 4
    [5] => 5
    [6] => 6
    [7] => 12
    [8] => 1
    [9] => 7
    [10] => 10
    [11] => 8
    [12] => 3
    [20] => 14
)
https://ideone.com/na09GF
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
public

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