How to get unique values from an array?

Question

I have address array. I want to get unique address records from below array. I have used lots of logic but all fails to extract unique address. If we get any differences between keys like address_one, address_two etc. with another one, then I will consider as unique, but here some array values same with others.

Array
(    
0 => Array
        (
            'address_one' => 'qqqqqqqqqq',
            'address_two' => 'wwwwww',
            'zipcode' => '212121',
            'country_id' => '1',
            'country_name' => 'United States',
            'state_id' => '5',
            'state_name' => 'AP',
            'city_id' => '3',
            'city_name' => 'Bhopal'
        ),    
1 => Array
        (
            'address_one' => 'lkl',
            'address_two' => 'ik2',
            'zipcode' => '564564',
            'country_id' => '1',
            'country_name' => 'United States',
            'state_id' => '1',
            'state_name' => 'Madhya Pradesh',
            'city_id' => '1',
            'city_name' => 'Indore'
        ),    
2 => Array
        (
            'address_one' => 'ace1',
            'address_two' => 'caldrys1',
            'zipcode' => '564561',
            'country_id' => '91',
            'country_name' => 'Guinea',
            'state_id' => '3',
            'state_name' => 'AL',
            'city_id' => '3',
            'city_name' => 'Bhopal'
        ),    
3 => Array
        (
            'address_one' => '',
            'address_two' => '',
            'zipcode' => '',
            'country_id' => '',
            'country_name' => '',
            'state_id' => '',
            'state_name' => '',
            'city_id' => '',
            'city_name' => ''
        ),    
4 => Array
        (
            'address_one' => '',
            'address_two' => '',
            'zipcode' => '',
            'country_id' => '',
            'country_name' => '',
            'state_id' => '',
            'state_name' => '',
            'city_id' => '',
            'city_name' => ''
        ),    
5 => Array
        (
            'address_one' => 'lkl',
            'address_two' => 'ik2',
            'zipcode' => '564564',
            'country_id' => '1',
            'country_name' => 'United States',
            'state_id' => '1',
            'state_name' => 'Madhya Pradesh',
            'city_id' => '1',
            'city_name' => 'Indore'
        ),    
6 => Array
        (
            'address_one' => 'Ace',
            'address_two' => 'Matru Line',
            'zipcode' => '483504',
            'country_id' => '100',
            'country_name' => 'India',
            'state_id' => '1',
            'state_name' => 'Madhya Pradesh',
            'city_id' => '2',
            'city_name' => 'Katni'
        ),    
7 => Array
        (
            'address_one' => 'lkl',
            'address_two' => 'ik2',
            'zipcode' => '564564',
            'country_id' => '1',
            'country_name' => 'United States',
            'state_id' => '1',
            'state_name' => 'Madhya Pradesh',
            'city_id' => '1',
            'city_name' => 'Indore'
        ),
8 => Array
        (
            'address_one' => 'ace1',
            'address_two' => 'caldrys1',
            'zipcode' => '564561',
            'country_id' => '91',
            'country_name' => 'Guinea',
            'state_id' => '3',
            'state_name' => 'AL',
            'city_id' => '3',
            'city_name' => 'Bhopal'
        )

);

1) Have you tried something? Show your attempts! 2) What is the current output and what do you expect to get? — Rizier123
– Rizier123, Commented Aug 3, 2015 at 15:04
@Rizier123: 4 upvotes for this question and 4 upvotes for the answer. What on earth is going on? ;=D — halfer
– halfer, Commented Aug 3, 2015 at 15:44
@halfer earth is broken with many fatal syntax errors in it :} Like this question. — Rizier123
– Rizier123, Commented Aug 3, 2015 at 15:45
I have used lots of complex method, using loop and keeping values another array but all of things not working properly. Also used In_array, array_intersect, array_diff etc. — Vikas Burman
– Vikas Burman, Commented Aug 3, 2015 at 16:00
Would you give us an example of all of the things that did not work properly, edited into your question? Many thanks. — halfer
– halfer, Commented Aug 4, 2015 at 0:54

halfer · Accepted Answer · 2015-08-03 15:42:25Z

5

To get unique multidimensional array you can use this :

$output_array = array_map(
    "unserialize",
    array_unique(array_map("serialize", $input_array))
);

edited Aug 3, 2015 at 15:42

halfer

20.2k20 gold badges110 silver badges207 bronze badges

answered Aug 3, 2015 at 15:20

Ravi Tiwari

737 bronze badges

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1 Comment

halfer Over a year ago

Given how difficult the original post was to understand, I am impressed you got it in 17 minutes without any clarifications required. You've managed to get additional congratulatory messages as well, and four quick upvotes - good work! However, please be aware that if any of you know each other, there is no value in answering each other's questions - voting ring detection is very good on Stack Overflow, and is soon reversed.

Amar Kalra · Accepted Answer · 2015-08-06 14:28:51Z

1

Please use this to get unique array.

$output_array = array_unique($input_array, SORT_REGULAR);

answered Aug 6, 2015 at 14:28

Amar Kalra

512 bronze badges

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