php 读取 json 里面的字段内容?

Question

php 读取 json 里面的字段内容

Answer 1

示例代码如下：

123456

<?phpheader("Content-type: text/html; charset=utf-8");$postArray = '[{"count":{"左脑":2,"右脑":3,"全脑":2,"全脑1":1},"score":{"左脑":8,"右脑":14,"全脑":15,"全脑1":8},"pingjun":{"左脑":4,"右脑":4.6666666666667,"全脑":7.5,"全脑1":8}}]';$de_json = json_decode($postArray, true);echo $de_json[0]['pingjun']['左脑'];?>

json 数组结构如图：

Answer 2

参考示例代码如下：
<?php
$json = '{"a":100,"b":200,"c":300,"d":400,"e":500}';

//首先将json字符串转换成关联数组
$arr=json_decode($json, true);

//然后循环读取数据
foreach($arr as $item){
echo $item;
echo "<br/>";
}
?>

运行结果：
100
200
300
400
500