如何循环并打印json字符串中每个键的所有值？

2024-09-30 01:20:52 发布

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m = [{"text":"mamamia","speaker":"","id":0},{"text":"mamamia","speaker":"","id":1},{"text":"mamamia","speaker":"","id":2},{"text":"mamamia","speaker":"","id":3},{"text":"mamamia","speaker":"","id":4},{"text":"mamamia","speaker":"","id":5}]

我想打印“id”的所有值。从0到5。然后把它改成6-11。然后新值将其附加到旧值并保存文件。有可能吗？你知道吗


Tags： 文件textidspeaker新值旧值mamamia
3条回答
网友
1楼 · 编辑于 2024-09-30 01:20:52
    yes it is passible to php see below example     



   <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
       "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
       <html xmlns="http://www.w3.org/1999/xhtml">
      <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <title>Untitled Document</title>
 </head>

 <body>
 <?php 


    $m=[   ["text"=>"mamamia","speaker"=>"a","id"=>0],
           ["text"=>"mamamia","speaker"=>"b","id"=>1],
            ["text"=>"mamamia","speaker"=>"c","id"=>2],
           ["text"=>"mamamia","speaker"=>"d","id"=>3],
            ["text"=>"mamamia","speaker"=>"e","id"=>4],
              ["text"=>"mamamia","speaker"=>"f","id"=>5]
           ];


      //echo gettype($m)."<br>";
      $myJSON = json_encode($m);
     //echo $myJSON;
      $myJSON=json_decode($myJSON);
    echo "<table border='2px'><tr><th>Text</th><th>Speeker</th><th>ID</th></tr>";
     foreach($myJSON as $a)
     {
     echo"<tr><td>". $a->text."</td><td>".$a->speaker."</td><td>".$a->id."</td> 
        </tr>";
   } 
   echo "</table>"; 



     //add the id 6 - 11
      array_push($m,["text"=>"mamamia","speaker"=>"a","id"=>6]);
      array_push($m,["text"=>"mamamia","speaker"=>"a","id"=>7]);
      array_push($m,["text"=>"mamamia","speaker"=>"a","id"=>8]);
      array_push($m,["text"=>"mamamia","speaker"=>"a","id"=>9]);
      array_push($m,["text"=>"mamamia","speaker"=>"a","id"=>10]);
      array_push($m,["text"=>"mamamia","speaker"=>"a","id"=>11]);
       //print_r($m);

       $myJSON = json_encode($m);
          //echo $myJSON."<br>";
                 $myJSON=json_decode($myJSON);
          echo "<table border='2px'><tr><th>Text</th><th>Speeker</th><th>ID</th> 
     </tr>";
        foreach($myJSON as $a)
         {
         //print_r($a);
            echo"<tr><td>". $a->text."</td><td>".$a->speaker."</td><td>".$a->id." 
      </td></tr>";
  } 
   echo "</table>"; 


     ?>
     </body>
     </html>

            **output**

           [Output we get]


     [1]: https://i.stack.imgur.com/CU9k7.jpg
网友
2楼 · 编辑于 2024-09-30 01:20:52

因为它是json字符串我更愿意将其作为反序列化对象来处理，如下所示：

string = '[{"text":"mamamia","speaker":"","id":0},{"text":"mamamia","speaker":"","id":1},{"text":"mamamia","speaker":"","id":2},{"text":"mamamia","speaker":"","id":3},{"text":"mamamia","speaker":"","id":4},{"text":"mamamia","speaker":"","id":5}]'

deserialized = json.loads(string)
for obj in deserialized:
    obj["id"] = obj.get("id") + 6

print(json.dumps(deserialized))

输出：

[{"id": 6, "text": "mamamia", "speaker": ""}, {"id": 7, "text": "mamamia", "speaker": ""}, {"id": 8, "text": "mamamia", "speaker": ""}, {"id": 9, "text": "mamamia", "speaker": ""}, {"id": 10, "text": "mamamia", "speaker": ""}, {"id": 11, "text": "mamamia", "speaker": ""}]
网友
3楼 · 编辑于 2024-09-30 01:20:52
m.map(function(obj) {
console.log(obj.id);
obj.id = obj.id + 6;
})

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