Can array_unique be used for multi dimensional arrays

Question

i just wanted to know whether array_unique be used for multi dimensional arrays

@tomaszsobczak: If you look closely at the time, the PHP-tag was added after he asked that ;) — jwueller, Dec 06 '10 at 12:18

score 2 · Accepted Answer · answered Dec 06 '10 at 12:14

2

From the docs:

Note that array_unique() is not intended to work on multi dimensional arrays.

answered Dec 06 '10 at 12:14

jwueller

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score 1 · Answer 2 · answered Dec 06 '10 at 12:14

1

From php.net's page on array_unique

Note: Note that array_unique() is not intended to work on multi dimensional arrays

answered Dec 06 '10 at 12:14

The Archetypal Paul

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score 0 · Answer 3 · answered Dec 06 '10 at 12:14

0

array_unique() is not intended to work on multi dimensional arrays.

answered Dec 06 '10 at 12:14

Shaun Hare

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score 0 · Answer 4 · answered Dec 06 '10 at 12:15

0

just go here http://php.net/manual/en/function.array-unique.php and read this "Note: Note that array_unique() is not intended to work on multi dimensional arrays"

answered Dec 06 '10 at 12:15

TomaszSobczak

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Pradeep Singh · Answer 5 · 2010-12-06T12:21:27.250

<?php

$array = array(
    array(
        'id'    => 123,
        'name'  => 'Some Product',
        'ean'   => '1234567890123'
    ),
    array(
        'id'    => 123,
        'name'  => 'Some Product',
        'ean'   => '4852950174938'
    ),
    array(
        'id'    => 123,
        'name'  => 'Some Product',
        'ean'   => '1234567890123'
    ),
);
$uniqueArray = array_unique($array);
var_dump($uniqueArray);
?>

Output

array(1) {
  [0]=>
  array(3) {
    ["id"]=>
    int(123)
    ["name"]=>
    string(12) "Some Product"
    ["ean"]=>
    string(13) "1234567890123"
  }
}

Please see that http://php.net/manual/en/function.array-unique.php

Can array_unique be used for multi dimensional arrays

5 Answers5