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@ 2015-07-30T09:22:08Z

<?php

$x = array (
  0 => 
  array (
    81 => 'assess',
  ),
  1 => 
  array (
    9 => 'assess',
  ),
  2 => 
  array (
    45 => 'assess',
  ),
  3 => 
  array (
    22 => 'assess',
  ),
  4 => 
  array (
    83 => 'assess3',
  ),
  5 => 
  array (
    9 => 'assess',
  ),
);

print_r(array_unique($x, SORT_REGULAR));

Output
Performance
VLD
References
Branches

print_r: documentation ( source)
array_unique: documentation ( source)

preferences:dark modelive preview

47.04 ms | 402 KiB | 5 Q