remove duplicate values from multidimensional array - php

Question

Below is the result and I want to remove duplicate from the array
I tried using this code: $login_data1['items'] = array_values(array_map("unserialize", array_unique(array_map("serialize", $login_data1['items']))));
{
"items": [
{
"id": "2",
"tags": [
{
"name": "Microsoft"
}
],
"type": "manual",
},
{
"id": "1",
"tags": [
{
"name": "Snow Leopard"
}
],
"type": "faq"
},
{
"id": "2",
"tags": [
{
"name": "Microsoft"
}
],
"type": "manual"
}
],
}
I tried using $login_data1['items'] = array_unique($login_data1['items'] ,SORT_REGULAR); but this adds serial numbers at the each json response

Answer 1

Try as using array_unique
$json = '{
"items": [
{
"id": "2",
"tags": [
{
"name": "Microsoft"
}
],
"type": "manual"
},
{
"id": "1",
"tags": [
{
"name": "Snow Leopard"
}
],
"type": "faq"
},
{
"id": "2",
"tags": [
{
"name": "Microsoft"
}
],
"type": "manual"
}
]
}';
foreach(json_decode($json, true) as $key => $value){
$input = array_unique($value,SORT_REGULAR);
}
If its an array then simply use
array_unique($login_data['items'],SORT_REGULAR);
Fiddle

Answer 2

array_unique works perfectly if you pass a multidimensional array.
$login_data1['items'] = array_unique($login_data1['items'], SORT_REGULAR);
It doesn't work with your json because it's an array of object. Infact:
$array = json_decode($json);
var_dump($array);
returns:
object(stdClass)#1 (1) {
["items"]=>
array(3) {
[0]=>
object(stdClass)#2 (3) {
["id"]=>
string(1) "2"
["tags"]=>
array(1) {
[0]=>
object(stdClass)#3 (1) {
["name"]=>
string(9) "Microsoft"
}
}
["type"]=>
string(6) "manual"
}
[1]=>
object(stdClass)#4 (3) {
["id"]=>
string(1) "1"
["tags"]=>
array(1) {
[0]=>
object(stdClass)#5 (1) {
["name"]=>
string(12) "Snow Leopard"
}
}
["type"]=>
string(3) "faq"
}
[2]=>
object(stdClass)#6 (3) {
["id"]=>
string(1) "2"
["tags"]=>
array(1) {
[0]=>
object(stdClass)#7 (1) {
["name"]=>
string(9) "Microsoft"
}
}
["type"]=>
string(6) "manual"
}
}
}
Your json should look like this:
{
"items": [
{
"id": "2",
"tags": {
"name": "Microsoft"
},
"type": "manual"
},
{
"id": "1",
"tags": {
"name": "Snow Leopard"
},
"type": "faq"
},
{
"id": "2",
"tags": {
"name": "Microsoft"
},
"type": "manual"
},
{
"id": "2",
"tags": {
"name": "Microsoft"
},
"type": "manual"
}
]
}
And now:
$array = json_decode($json);
var_dump($array);
returns:
array(1) {
["items"]=>
array(4) {
[0]=>
array(3) {
["id"]=>
string(1) "2"
["tags"]=>
array(1) {
["name"]=>
string(9) "Microsoft"
}
["type"]=>
string(6) "manual"
}
[1]=>
array(3) {
["id"]=>
string(1) "1"
["tags"]=>
array(1) {
["name"]=>
string(12) "Snow Leopard"
}
["type"]=>
string(3) "faq"
}
[2]=>
array(3) {
["id"]=>
string(1) "2"
["tags"]=>
array(1) {
["name"]=>
string(9) "Microsoft"
}
["type"]=>
string(6) "manual"
}
[3]=>
array(3) {
["id"]=>
string(1) "2"
["tags"]=>
array(1) {
["name"]=>
string(9) "Microsoft"
}
["type"]=>
string(6) "manual"
}
}
}
And array_unique works.

Answer 3

I got the solution for this.
$login_data1['items'] =array_values(array_unique($login_data1['items'] ,SORT_REGULAR));
Try array_value and array_unique together and serial number will be removed!

Answer 4

$login_data1['items'] =array_values(array_unique($login_data1['items'] ,SORT_REGULAR));