merge json data uniquely in php

Question

I want to merge json data uniquely. I have two json data, need one resulted json data that contains both json data in unique way.

$json1 = '[{"name":"A1","phone":"123"}, {"name":"A2","phone":"456"}]';
$json2 = '[{"name":"A1","phone":"123"}, {"name":"A3","phone":"789"}]';

$decoded_json1 = json_decode($json1, true);
$decoded_json2 = json_decode($json2, true);

var_dump($decoded_json1);
var_dump($decoded_json2);

$merge_json = array_merge($decoded_json1, $decoded_json2);

var_dump($merge_json);

/* I want json data like this
[{"name":"A1","phone":"123"}, {"name":"A2","phone":"456"}, {"name":"A3","phone":"789"}]
 */

But the above code is not working fine it merge the json data but problem is that it's not a unique this object {"name":"A1","phone":"123"} repeat.

UPDATE:

  $json2 = '[{"name":"A1","phone":"123"}, {"name":"A3","phone":"789"}, {"name":"A1","phone":"000"}]'; 

Answer 1

Try this:

Updated:

$json1 = '[{"name":"A1","phone":"123"}, {"name":"A2","phone":"456"}]';
$json2 = '[{"name":"A1","phone":"123"}, {"name":"A3","phone":"789"},    {"name":"A1","phone":"000"}]';
$array = array_unique(array_merge(json_decode($json1, true), json_decode($json2, true)), SORT_REGULAR);

function data_uniquely($key, $array) {
   $_array = array();
   foreach ($array as $v) {
      if (isset($_array[$v[$key]]))
         continue;
      $_array[$v[$key]] = $v;
   }
   $array = array_values($_array);
   return json_encode($array);
}
$json = data_uniquely('name', $array);
echo $json;

Json result:

[
 {
   "name": "A1",
   "phone": "123"
 },
 {
   "name": "A2",
   "phone": "456"
 },
 {
   "name": "A3",
   "phone": "789"
 }
]