удалить дубликат из вложенных JSON

Question

Как я могу использовать PHP для удаления дубликата из JSON?

{ 
    "keyword": [{ 
    "consultion": [{ 
     "title": "\u0645\u062f\u0629 \u0627\u0644\u0645\u0631\u0636", 
     "content": "\u0645\u0627 \u0645\u0639\u062f\u0644 \u0627\u0644\u0628\u0642\u0627\u0621 \u0639\u0644\u0649 \u0642\u064a\u062f \u0627\u0644\u062d\u064a\u0627\u0629 \u0628\u0639\u062f \u0627\u0644\u0625\u0635\u0627\u0628\u0629 \u0628\u0645\u0631\u0636 \u0627\u0644\u0623\u0644\u0632\u0647\u0627\u064a\u0645\u0631\u061f", 
     "id": "1" 
    }] 
    }, { 
    "consultion": [{ 
     "title": " \u0645\u062a\u0644\u0627\u0632\u0645\u0629 \u063a\u0631\u0648\u0628 \u0627\u0644\u0634\u0645\u0633", 
     "content": " \u0645\u0627 \"\u0645\u062a\u0644\u0627\u0632\u0645\u0629 \u063a\u0631\u0648\u0628 \u0627\u0644\u0634\u0645\u0633\" \u0627\u0644\u062a\u064a \u0642\u062f \u064a\u0639\u0627\u0646\u064a \u0645\u0646\u0647\u0627 \u0645\u0631\u064a\u0636 \u0627\u0644\u0623\u0644\u0632\u0647\u0627\u064a\u0645\u0631\u061f", 
     "id": "2" 
    }] 
    }, { 
    "consultion": [{ 
     "title": "\u0645\u062f\u0629 \u0627\u0644\u0645\u0631\u0636", 
     "content": "\u0645\u0627 \u0645\u0639\u062f\u0644 \u0627\u0644\u0628\u0642\u0627\u0621 \u0639\u0644\u0649 \u0642\u064a\u062f \u0627\u0644\u062d\u064a\u0627\u0629 \u0628\u0639\u062f \u0627\u0644\u0625\u0635\u0627\u0628\u0629 \u0628\u0645\u0631\u0636 \u0627\u0644\u0623\u0644\u0632\u0647\u0627\u064a\u0645\u0631\u061f", 
     "id": "1" 
    }] 
    }] 
} 

Answer 1

Просто декодировать строку JSON, запустить array_unique на массив ключевых слов и кодировать обратно в JSON:

// Decode JSON into an array 
$str = '{"keyword":[{"consultion":[{"title":"\u0645\u062f\u0629 \u0627\u0644\u0645\u0631\u0636","content":"\u0645\u0627 \u0645\u0639\u062f\u0644 \u0627\u0644\u0628\u0642\u0627\u0621 \u0639\u0644\u0649 \u0642\u064a\u062f \u0627\u0644\u062d\u064a\u0627\u0629 \u0628\u0639\u062f \u0627\u0644\u0625\u0635\u0627\u0628\u0629 \u0628\u0645\u0631\u0636 \u0627\u0644\u0623\u0644\u0632\u0647\u0627\u064a\u0645\u0631\u061f","id":"1"}]},{"consultion":[{"title":" \u0645\u062a\u0644\u0627\u0632\u0645\u0629 \u063a\u0631\u0648\u0628 \u0627\u0644\u0634\u0645\u0633","content":" \u0645\u0627 \"\u0645\u062a\u0644\u0627\u0632\u0645\u0629 \u063a\u0631\u0648\u0628 \u0627\u0644\u0634\u0645\u0633\" \u0627\u0644\u062a\u064a \u0642\u062f \u064a\u0639\u0627\u0646\u064a \u0645\u0646\u0647\u0627 \u0645\u0631\u064a\u0636 \u0627\u0644\u0623\u0644\u0632\u0647\u0627\u064a\u0645\u0631\u061f","id":"2"}]},{"consultion":[{"title":"\u0645\u062f\u0629 \u0627\u0644\u0645\u0631\u0636","content":"\u0645\u0627 \u0645\u0639\u062f\u0644 \u0627\u0644\u0628\u0642\u0627\u0621 \u0639\u0644\u0649 \u0642\u064a\u062f \u0627\u0644\u062d\u064a\u0627\u0629 \u0628\u0639\u062f \u0627\u0644\u0625\u0635\u0627\u0628\u0629 \u0628\u0645\u0631\u0636 \u0627\u0644\u0623\u0644\u0632\u0647\u0627\u064a\u0645\u0631\u061f","id":"1"}]}]}'; 
$array = json_decode($str, true); 

// Remove duplicates from 'keyword' array 
$array['keyword'] = array_unique($array['keyword'], SORT_REGULAR); 

// Encode back into JSON 
$json = json_encode($array, JSON_PRETTY_PRINT); 
echo $json; 

Выход:

{ 
    "keyword": [ 
     { 
      "consultion": [ 
       { 
        "title": "\u0645\u062f\u0629 \u0627\u0644\u0645\u0631\u0636", 
        "content": "\u0645\u0627 \u0645\u0639\u062f\u0644 \u0627\u0644\u0628\u0642\u0627\u0621 \u0639\u0644\u0649 \u0642\u064a\u062f \u0627\u0644\u062d\u064a\u0627\u0629 \u0628\u0639\u062f \u0627\u0644\u0625\u0635\u0627\u0628\u0629 \u0628\u0645\u0631\u0636 \u0627\u0644\u0623\u0644\u0632\u0647\u0627\u064a\u0645\u0631\u061f", 
        "id": "1" 
       } 
      ] 
     }, 
     { 
      "consultion": [ 
       { 
        "title": " \u0645\u062a\u0644\u0627\u0632\u0645\u0629 \u063a\u0631\u0648\u0628 \u0627\u0644\u0634\u0645\u0633", 
        "content": " \u0645\u0627 \"\u0645\u062a\u0644\u0627\u0632\u0645\u0629 \u063a\u0631\u0648\u0628 \u0627\u0644\u0634\u0645\u0633\" \u0627\u0644\u062a\u064a \u0642\u062f \u064a\u0639\u0627\u0646\u064a \u0645\u0646\u0647\u0627 \u0645\u0631\u064a\u0636 \u0627\u0644\u0623\u0644\u0632\u0647\u0627\u064a\u0645\u0631\u061f", 
        "id": "2" 
       } 
      ] 
     } 
    ] 
} 

Answer 2

<?php 
    $data = json_decode('{"keyword":[{"consultion":[{"title":"\u0645\u062f\u0629 \u0627\u0644\u0645\u0631\u0636","content":"\u0645\u0627 \u0645\u0639\u062f\u0644 \u0627\u0644\u0628\u0642\u0627\u0621 \u0639\u0644\u0649 \u0642\u064a\u062f \u0627\u0644\u062d\u064a\u0627\u0629 \u0628\u0639\u062f \u0627\u0644\u0625\u0635\u0627\u0628\u0629 \u0628\u0645\u0631\u0636 \u0627\u0644\u0623\u0644\u0632\u0647\u0627\u064a\u0645\u0631\u061f","id":"1"}]},{"consultion":[{"title":" \u0645\u062a\u0644\u0627\u0632\u0645\u0629 \u063a\u0631\u0648\u0628 \u0627\u0644\u0634\u0645\u0633","content":" \u0645\u0627 \"\u0645\u062a\u0644\u0627\u0632\u0645\u0629 \u063a\u0631\u0648\u0628 \u0627\u0644\u0634\u0645\u0633\" \u0627\u0644\u062a\u064a \u0642\u062f \u064a\u0639\u0627\u0646\u064a \u0645\u0646\u0647\u0627 \u0645\u0631\u064a\u0636 \u0627\u0644\u0623\u0644\u0632\u0647\u0627\u064a\u0645\u0631\u061f","id":"2"}]},{"consultion":[{"title":"\u0645\u062f\u0629 \u0627\u0644\u0645\u0631\u0636","content":"\u0645\u0627 \u0645\u0639\u062f\u0644 \u0627\u0644\u0628\u0642\u0627\u0621 \u0639\u0644\u0649 \u0642\u064a\u062f \u0627\u0644\u062d\u064a\u0627\u0629 \u0628\u0639\u062f \u0627\u0644\u0625\u0635\u0627\u0628\u0629 \u0628\u0645\u0631\u0636 \u0627\u0644\u0623\u0644\u0632\u0647\u0627\u064a\u0645\u0631\u061f","id":"1"}]}]}'); 
    $data = $data->keyword[0]; 

    $new_data['title'] = $data->title; 
    $new_data['consultion'] = $data->consultion; 
    echo json_encode($new_data); 
?> 

PS:

<?php 

    $data = json_decode('{"keyword":[{"consultion":[{"title":"\u0645\u062f\u0629 \u0627\u0644\u0645\u0631\u0636","content":"\u0645\u0627 \u0645\u0639\u062f\u0644 \u0627\u0644\u0628\u0642\u0627\u0621 \u0639\u0644\u0649 \u0642\u064a\u062f \u0627\u0644\u062d\u064a\u0627\u0629 \u0628\u0639\u062f \u0627\u0644\u0625\u0635\u0627\u0628\u0629 \u0628\u0645\u0631\u0636 \u0627\u0644\u0623\u0644\u0632\u0647\u0627\u064a\u0645\u0631\u061f","id":"1"}]},{"consultion":[{"title":" \u0645\u062a\u0644\u0627\u0632\u0645\u0629 \u063a\u0631\u0648\u0628 \u0627\u0644\u0634\u0645\u0633","content":" \u0645\u0627 \"\u0645\u062a\u0644\u0627\u0632\u0645\u0629 \u063a\u0631\u0648\u0628 \u0627\u0644\u0634\u0645\u0633\" \u0627\u0644\u062a\u064a \u0642\u062f \u064a\u0639\u0627\u0646\u064a \u0645\u0646\u0647\u0627 \u0645\u0631\u064a\u0636 \u0627\u0644\u0623\u0644\u0632\u0647\u0627\u064a\u0645\u0631\u061f","id":"2"}]},{"consultion":[{"title":"\u0645\u062f\u0629 \u0627\u0644\u0645\u0631\u0636","content":"\u0645\u0627 \u0645\u0639\u062f\u0644 \u0627\u0644\u0628\u0642\u0627\u0621 \u0639\u0644\u0649 \u0642\u064a\u062f \u0627\u0644\u062d\u064a\u0627\u0629 \u0628\u0639\u062f \u0627\u0644\u0625\u0635\u0627\u0628\u0629 \u0628\u0645\u0631\u0636 \u0627\u0644\u0623\u0644\u0632\u0647\u0627\u064a\u0645\u0631\u061f","id":"1"}]}]}'); 
    $keywords = $data->keyword; 

    $new_data = array(); 

    foreach ($keywords as $consultion) { 

     if (array_search($consultion, $new_data) === FALSE) { 
      $new_data[] = $consultion; 
     } 
    } 

    print_r($new_data); 
    //echo json_encode($new_data); 

    /******************** Example **********************************/ 
    echo "\r\n\r\n"; 
    $data = array(); 
    $data['consultion'][] = array('title' => 'a', 'id' => 1); 
    $data['consultion'][] = array('title' => 'b', 'id' => 2); 
    $data['consultion'][] = array('title' => 'a', 'id' => 1); //duplicated 

    $encoded = json_encode($data); 
    $data = json_decode($encoded); 


    $new_data = array(); 

    foreach ($data->consultion as $obj) { 

     if (array_search($obj, $new_data) === FALSE) { 
      $new_data[] = $obj; 
     } 
    } 

    print_r($new_data); 
    //echo json_encode($new_data); 

?> 

Answer 3

// copy them into anther array with check if content is taken before or not 

$array = json_decode(json, TRUE); 
// [["title"=>"", "content"=>""],["title"=>"", "content"=>""]] 
$arr = json_decode('{"keyword":[{"consultion":[{"title":"\u0645\u062f\u0629 \u0627\u0644\u0645\u0631\u0636","content":"\u0645\u0627 \u0645\u0639\u062f\u0644 \u0627\u0644\u0628\u0642\u0627\u0621 \u0639\u0644\u0649 \u0642\u064a\u062f \u0627\u0644\u062d\u064a\u0627\u0629 \u0628\u0639\u062f \u0627\u0644\u0625\u0635\u0627\u0628\u0629 \u0628\u0645\u0631\u0636 \u0627\u0644\u0623\u0644\u0632\u0647\u0627\u064a\u0645\u0631\u061f","id":"1"}]},{"consultion":[{"title":" \u0645\u062a\u0644\u0627\u0632\u0645\u0629 \u063a\u0631\u0648\u0628 \u0627\u0644\u0634\u0645\u0633","content":" \u0645\u0627 \"\u0645\u062a\u0644\u0627\u0632\u0645\u0629 \u063a\u0631\u0648\u0628 \u0627\u0644\u0634\u0645\u0633\" \u0627\u0644\u062a\u064a \u0642\u062f \u064a\u0639\u0627\u0646\u064a \u0645\u0646\u0647\u0627 \u0645\u0631\u064a\u0636 \u0627\u0644\u0623\u0644\u0632\u0647\u0627\u064a\u0645\u0631\u061f","id":"2"}]},{"consultion":[{"title":"\u0645\u062f\u0629 \u0627\u0644\u0645\u0631\u0636","content":"\u0645\u0627 \u0645\u0639\u062f\u0644 \u0627\u0644\u0628\u0642\u0627\u0621 \u0639\u0644\u0649 \u0642\u064a\u062f \u0627\u0644\u062d\u064a\u0627\u0629 \u0628\u0639\u062f \u0627\u0644\u0625\u0635\u0627\u0628\u0629 \u0628\u0645\u0631\u0636 \u0627\u0644\u0623\u0644\u0632\u0647\u0627\u064a\u0645\u0631\u061f","id":"1"}]}]} ',true); 
$tmp = array(); 
foreach ($arr["keyword"] as $item){ 
    if(in_array($item, $tmp ) ){ continue; } 
    $tmp[] = $item; 
} 

print_r($tmp); 
// or 
json_encode($tmp);