Remove duplicate objects from multi dimensional array

Question

Hi i have multidimensional php array shown below, i just wanted to remove duplicated objects from this array. is their anyway to do this in php? all i need that remove the stdClass Object that repeating.

 Array
(
    [0] => stdClass Object
        (
            [term_id] => 5
            [name] => 4x4
            [slug] => 4x4
        [term_group] => 0
        [term_taxonomy_id] => 5
        [taxonomy] => ptd_vehicle_sub_cat
        [description] => 
        [parent] => 0
        [count] => 2
    )

[1] => stdClass Object
    (
        [term_id] => 4
        [name] => Ultra High Performance
        [slug] => ultra-high-performance
        [term_group] => 0
        [term_taxonomy_id] => 4
        [taxonomy] => ptd_vehicle_sub_cat
        [description] => 
        [parent] => 0
        [count] => 2
    )

[2] => stdClass Object
    (
        [term_id] => 5
        [name] => 4x4
        [slug] => 4x4
        [term_group] => 0
        [term_taxonomy_id] => 5
        [taxonomy] => ptd_vehicle_sub_cat
        [description] => 
        [parent] => 0
        [count] => 2
    )

[3] => stdClass Object
    (
        [term_id] => 4
        [name] => Ultra High Performance
        [slug] => ultra-high-performance
        [term_group] => 0
        [term_taxonomy_id] => 4
        [taxonomy] => ptd_vehicle_sub_cat
        [description] => 
        [parent] => 0
        [count] => 2
    )

)

score 4 · Answer 1 · answered Mar 20 '13 at 09:05

4

Keep it simple ... all that is needed is :

$list = array();
foreach ( $data as $item ) {
    isset($list[$item->term_id]) or $list[$item->term_id] = $item;
}

print_r($list); //duplicate removed

answered Mar 20 '13 at 09:05

Baba

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28
166
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Basically this is the answer that I needed. Simple. ThankS! – Juni Brosas Feb 03 '16 at 02:01

score 3 · Accepted Answer · answered Mar 20 '13 at 09:10

Try this :

$array = array_map("unserialize", array_unique(array_map("serialize", $array)));

Here is the complete code :

$array  =  array( array(
                    "term_id" => 5,
                    "name" => "4x4",
                    "slug" => "4x4",
                    "term_group" => 0,
                    "term_taxonomy_id" => 5,
                    "taxonomy" => "ptd_vehicle_sub_cat",
                    "description" => 0,
                    "parent" => 0,
                    "count" => 2,
                 ),
                 array(
                    "term_id" => 4,
                    "name" => "Ultra High Performance",
                    "slug" => "ultra-high-performance",
                    "term_group" => 0,
                    "term_taxonomy_id" => 4,
                    "taxonomy" => "ptd_vehicle_sub_cat",
                    "description" => 0,
                    "parent" => 0,
                    "count" => 2,
                ),
                 array(
                    "term_id" => 5,
                    "name" => "4x4",
                    "slug" => "4x4",
                    "term_group" => 0,
                    "term_taxonomy_id" => 5,
                    "taxonomy" => "ptd_vehicle_sub_cat",
                    "description" => 0,
                    "parent" => 0,
                    "count" => 2
                ),
                 array(
                    "term_id" => 4,
                    "name" => "Ultra High Performance",
                    "slug" => "ultra-high-performance",
                    "term_group" => 0,
                    "term_taxonomy_id" => 4,
                    "taxonomy" => "ptd_vehicle_sub_cat",
                    "description" => 0,
                    "parent" => 0,
                    "count" => 2
                )
);

$array = array_map("unserialize", array_unique(array_map("serialize", $array)));

echo "<pre>";
print_r($array);

Output :

Array
(
    [0] => Array
        (
            [term_id] => 5
            [name] => 4x4
            [slug] => 4x4
            [term_group] => 0
            [term_taxonomy_id] => 5
            [taxonomy] => ptd_vehicle_sub_cat
            [description] => 0
            [parent] => 0
            [count] => 2
        )

    [1] => Array
        (
            [term_id] => 4
            [name] => Ultra High Performance
            [slug] => ultra-high-performance
            [term_group] => 0
            [term_taxonomy_id] => 4
            [taxonomy] => ptd_vehicle_sub_cat
            [description] => 0
            [parent] => 0
            [count] => 2
        )

)

score 0 · Answer 3 · edited May 31 '19 at 08:28

0

Check out the array_filter() function. It should provide you with a good starting point.

edited May 31 '19 at 08:28

double-beep

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answered Mar 20 '13 at 09:04

Gung Foo

13,392
5
31
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score 0 · Answer 4 · answered Mar 20 '13 at 09:15

0

Try this:

$array = array_intersect_key($array, array_unique(array_map('serialize', $array)));

My way is better than @PrasanthBendra cause objects will not recreate. :^ ) But i prefer @Baba way.

answered Mar 20 '13 at 09:15

sectus

15,605
5
55
97

karmafunk · Answer 5 · 2013-03-20T09:28:45.067

0

You could try this:

foreach($array as $key=>$obj) {     
 $skey = implode(",",$obj);
 if(!isset($check[$skey])) {
  $new_array[$key]=$obj;
  $check[$skey]=1;
 }
}

This should leave the array $new_array without duplicates.

This is a much better way though:

$array = array_intersect_key($array, array_unique(array_map('serialize', $array)));

edited Mar 20 '13 at 09:28

answered Mar 20 '13 at 09:18

karmafunk

1,453
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Remove duplicate objects from multi dimensional array

5 Answers5