如何从php中的数据字符串中提取一系列变量？

Question

以下数据块是由网页与其他html数据一起产生的；"search":{"searchResults":{"results":[{"id":"123","name":"ABC","rating":{"average":0,"count":2,"__typename":"Rating"},"category":"AAA/Cars","__typename":"ProductQuery"},{"id":"456","name":"DEF","rating":{"average":5,"count":8,"__typename":"Rating"},"category":"BBB/Bikes","__typename":"ProductQuery"}{"id": //and so on//"}]}}如何从该字符串中提取多个变量，例如“ id”，“ rating”等数据，以便能够将其打印在另一个php页面上？

Answer 1

您可以json_decode用来将JSON转换为数组，然后遍历数组

$json = '{

"search":

 {

 "searchResults":

 {

    "results":[

            {"id":"123","name":"ABC","rating":{"average":0,"count":2,"__typename":"Rating"},"category":"AAA/Cars","__typename":"ProductQuery"},

            {"id":"456","name":"DEF","rating":{"average":5,"count":8,"__typename":"Rating"},"category":"BBB/Bikes","__typename":"ProductQuery"}

    ]

  }

 }

}';

$jsonToArray = json_decode($json,true);

foreach($jsonToArray['search']['searchResults']['results'] as $v){

   echo $v['id'];

  print_r($v['rating']);echo '<br/>';

}