Foreach json with indexes and values

[iacoposk8]

Hello everyone. there is a way to put in a foreach, a json object and retrieve various indices and their values?
example, if I have a json file:
[code]
{
"a":"1",
"b":"5",
"c":"9",
"d":"2"
}
[/code]
I would like a foreach, show me
a = 1
b = 5
c = 9
d = 2

ps: Googling I saw how to do a foreach and show only the values, without indexes