解析从数据库发送的数组

Question

您好，我想知道如何尝试解析从数据库中检索到的数据：

[
   {
      "q_id":"1",
      "type":"for",
      "author":"kappa420",
      "question":"what is the meaning of life?",
      "answer":"good question."
   },
   {
      "q_id":"2",
      "type":"recursive",
      "author":"kappa420",
      "question":"If only you knew",
      "answer":"That I was right behind you!"
   },
   {
      "q_id":"3",
      "type":"while",
      "author":"kappa420",
      "question":"who are you?",
      "answer":"ha-HA!"
   },
   {
      "q_id":"5",
      "type":"testtyte",
      "author":"testauthor",
      "question":"testquestion",
      "answer":""
   },
   {
      "q_id":"6",
      "type":"testtyte",
      "author":"testauthor",
      "question":"testquestion",
      "answer":"testanswer"
   },
   {
      "q_id":"7",
      "type":"public int add( int num1,",
      "author":"",
      "question":"Given two numbers the user must be able to add these numbers. ",
      "answer":" add(5,4) = 9\r\n add(2,3) = 5"
   },
   {
      "q_id":"8",
      "type":"public int add( int num1,",
      "author":"",
      "question":"Given two numbers the user must be able to add these numbers. ",
      "answer":" add(5,4) = 9\r\n add(2,3) = 5"
   },
   {
      "q_id":"9",
      "type":"dasdsa",
      "author":"",
      "question":" adddfa",
      "answer":" asdfs"
   },
   {
      "q_id":"10",
      "type":"adfafd",
      "author":"",
      "question":" dsadsf",
      "answer":" saddasf"
   },
   {
      "q_id":"11",
      "type":"adsf",
      "author":"",
      "question":" adsfs",
      "answer":" dsadsf"
   }
]

有没有办法获取某些元素，如 q_id 和 author 并将它们放入 html 属性中？

Answer 1

您可以使用命令 JSON.parse('{JSON HERE}') 将您的 JSON 解析为 JavaScript 数组，您可以对您的数组执行 for 循环并为它们创建一个 HTML 元素，如下所示：

$.each(arrayVar, function(i, obj) {
    $element = $('<div></div>');
    $element.attr('id') = obj['q_id'];
    $('body').append($element);
});

我希望这就是你要找的东西！

Answer 2

这是一个json字符串，用php很容易解析成数组。

$DataArray =  json_decode($MyDatabaseString,True);

Answer 3

                 $results = //db result
                  foreach($results as $result){
                   echo $result['q_id'];
                 }

检查http://www.w3schools.com/php/php_arrays_multi.asp 数组 => 键 => 值

               // if its json

                 $results = json_decode(dbresult);
                  foreach($results as $result){
                   echo $result['q_id'];
                 }