在json编码的响应中获取数组键

Question

I have this json encoded array

requestparser.php

 $array = array("ph" => array("phweb" => "yes", "phemail" => "yesss"));
 echo json_encode($array);

and ajax post type request for sending and processing the return response.

$.ajax({
    type: 'POST',
    url: 'requestparser.php',
    data: { "request" : "pull" },
    contentType: "application/json; charset=utf-8",
    dataType: 'json',
    cache: false,
    success: function(result) {
    alert(result["ph"]["phweb"]);
    alert(result["ph"]["phemail"]);
    }
});

what I'm trying to do is to get the array key and filter it with if statement, like (refer below)

var thearraykey = array key
if (thearraykey === "ph"){
    alert(array key)
}

how to get the array key that was in the json encoded response from requestparser.php? any help, ideas and clues would be greatly appreciated.

Answer 1

Use the Object.keys function. Like so:

var keys = Object.keys(jsonResponse);

That returns an array of keys. Then it's up to you to iterate over the array and do what you will with the keys. Recursive calls to the function with subsequent JSON objects will allow you to retrieve all the keys.