Question

这是我的json，

{
  "responseHeader":{
    "status":0,
    "QTime":15},
  "response":{"numFound":0,"start":0,"docs":[]
  },
  "spellcheck":{
    "suggestions":[
      "abert",{
        "numFound":10,
        "startOffset":0,
        "endOffset":5,
        "origFreq":0,
        "suggestion":[{
            "word":"albert",
            "freq":126},
          {
            "word":"aber t",
            "freq":317},
          {
            "word":"alert",
            "freq":58},
          {
            "word":"a bert",
            "freq":13},
          {
            "word":"abort",
            "freq":57},
          {
            "word":"a be rt",
            "freq":1045},
          {
            "word":"avert",
            "freq":37},
          {
            "word":"ab e rt",
            "freq":335},
          {
            "word":"aberr",
            "freq":21},
          {
            "word":"ab er t",
            "freq":317}]},
      "enstin",{
        "numFound":10,
        "startOffset":6,
        "endOffset":12,
        "origFreq":0,
        "suggestion":[{
            "word":"einstein",
            "freq":92},
          {
            "word":"ens tin",
            "freq":44},
          {
            "word":"enshrin",
            "freq":13},
          {
            "word":"en s tin",
            "freq":673},
          {
            "word":"enjoin",
            "freq":12},
          {
            "word":"e ns tin",
            "freq":335},
          {
            "word":"entwin",
            "freq":8},
          {
            "word":"ens t in",
            "freq":317},
          {
            "word":"epstein",
            "freq":8},
          {
            "word":"en st in",
            "freq":231}]},
      "correctlySpelled",false,
      "collation",[
        "collationQuery","albert einstein",
        "hits",154,
        "misspellingsAndCorrections",[
          "abert","albert",
          "enstin","einstein"]],
      "collation",[
        "collationQuery","(aber t) einstein",
        "hits",375,
        "misspellingsAndCorrections",[
          "abert","aber t",
          "enstin","einstein"]],
      "collation",[
        "collationQuery","albert (ens tin)",
        "hits",335,
        "misspellingsAndCorrections",[
          "abert","albert",
          "enstin","ens tin"]],
      "collation",[
        "collationQuery","albert enshrin",
        "hits",137,
        "misspellingsAndCorrections",[
          "abert","albert",
          "enstin","enshrin"]],
      "collation",[
        "collationQuery","alert einstein",
        "hits",139,
        "misspellingsAndCorrections",[
          "abert","alert",
          "enstin","einstein"]]]}}

我正在尝试获取以下字段

"collation",[
        "collationQuery","albert einstein",
        "hits",154,
        "misspellingsAndCorrections",[
          "abert","albert",
          "enstin","einstein"]],

特别是'阿尔伯特爱因斯坦'。我尝试了以下代码，但收到错误。

$myArray = json_decode($response, true);

foreach ($myArray['collation'] as $doc) {
echo $doc[0];
 }

Answer 1

这里有很多问题。

排序规则不是JSON的根级字段。 responseHeader，response，spellcheck是根级字段。其他一切都嵌套在它们之下。对print_r($myArray)解析的内容json_decode做。
$myArray是一个对象，而不是一个数组。对象的访问方式与$myArray->response类似，而不是$myArray['response']。

您所谓的“字段”不是字段。 json_encode将该数据的结构视为：

            [6] => collation
            [7] => Array
                (
                    [0] => collationQuery
                    [1] => albert einstein
                    [2] => hits
                    [3] => 154
                    [4] => misspellingsAndCorrections
                    [5] => Array
                        (
                            [0] => abert
                            [1] => albert
                            [2] => enstin
                            [3] => einstein
                        )

                )

如果这是您输出JSON的代码，那么您将需要更好地构建它。如果这是别人的代码，那就是他们的意思。

如何解码php中的json

1 个答案: