Question

php如何解析json

json内容：
{
"multi-i1ndex-style": {
"old": {
"0.1": "123"
"0.2": "234"
}
}
}
请问如何读取old中的内容

Answer 1

用json_decode函数将json字符串转换为数组
<?php
$json = '{"multi-i1ndex-style":{"old":{"0.1":"123","0.2":"234"}}}';
echo "<pre>";
print_r(json_decode($json, true));
echo "</pre>";

Answer 2

var obj = {
"multi-i1ndex-style": {
"old": {
"0.1": "123"
"0.2": "234"
}
}
};

obj.old["0.1"]

追问

如果要列出old里的所有东西呢

里面有几个就列出几个