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@ 2018-06-11T13:05:41Z

<?php

$a = array (
      0 => array ('Hund', 'Katze'),
      1 => array ('Hund', 'Katze', 'Pferd'),
      2 => array ('Hund', 'Katze'),
      3 => array ('Katze', 'Hund'),
      4 => array (1=>'Hund', 2=>'Katze'),
    );
    
$b = array_unique($a);
print_r($b);

Output
Performance
VLD
References
Branches

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

preferences:dark modelive preview

49.65 ms | 402 KiB | 5 Q