将多维数组的php数组转换为javascript数组

Hi i have that php code example :

$array1 = array("fruits" => "banana","vegetables" => "tomatos");
$array2 = array("name" => "Jack","Age" => "32");

$array3 = array($array1, $array2);

echo json_encode($array3);

javascript code includes jquery :

   var json_data = $.ajax({
                type: 'POST',
                url: 'scripts/myfile.php',
                data: { action: 'myaction' },
                dataType: 'json',
                cache: false,
                success: function(result) {
                    console.log(result);
                }
            });

how to convert json_data to an array and affect the two of $array1 & $array2 to javascript arrays !

this is the json_data content :

"{"HUM":[{"label":"2014-10-16 17:08:55","y":"58"},{"label":"2014-10-15 08:16:55","y":"56"},{"label":"2014-10-15 08:16:50","y":"56"},{"label":"2014-10-15 08:16:45","y":"56"},{"label":"2014-10-15 08:16:40","y":"56"},{"label":"2014-10-15 08:16:35","y":"56"},{"label":"2014-10-15 08:16:30","y":"56"},{"label":"2014-10-15 08:16:25","y":"56"},{"label":"2014-10-15 08:16:20","y":"56"},{"label":"2014-10-15 08:16:15","y":"56"},

"TEMP":[{"label":"2014-10-16 17:08:55","y":"26"},{"label":"2014-10-15 08:16:55","y":"24"},{"label":"2014-10-15 08:16:50","y":"24"},{"label":"2014-10-15 08:16:45","y":"24"},{"label":"2014-10-15 08:16:40","y":"24"},{"label":"2014-10-15 08:16:35","y":"24"},{"label":"2014-10-15 08:16:30","y":"24"},{"label":"2014-10-15 08:16:25","y":"24"},{"label":"2014-10-15 08:16:20","y":"24"},{"label":"2014-10-15 08:16:15","y":"24"},

"HUM2":[{"label":"2014-10-16 17:08:55","y":"38"},{"label":"2014-10-15 08:16:55","y":"36"},{"label":"2014-10-15 08:16:50","y":"36"},{"label":"2014-10-15 08:16:45","y":"36"},{"label":"2014-10-15 08:16:40","y":"36"},{"label":"2014-10-15 08:16:35","y":"36"},{"label":"2014-10-15 08:16:30","y":"36"},{"label":"2014-10-15 08:16:25","y":"36"},{"label":"2014-10-15 08:16:20","y":"36"},{"label":"2014-10-15 08:16:15","y":"36"},{"label":"2014-10-15 08:16:10","y":"36"},

"TEMP2":[{"label":"2014-10-16 17:08:55","y":"23"},{"label":"2014-10-15 08:16:55","y":"24"},{"label":"2014-10-15 08:16:50","y":"24"},{"label":"2014-10-15 08:16:45","y":"24"},{"label":"2014-10-15 08:16:40","y":"24"},{"label":"2014-10-15 08:16:35","y":"24"},{"label":"2014-10-15 08:16:30","y":"24"},{"label":"2014-10-15 08:16:25","y":"24"},{"label":"2014-10-15 08:16:20","y":"24"},{"label":"2014-10-15 08:16:15","y":"24"},{"label":"2014-10-15 08:16:10","y":"24"},{"label":"2014-10-15 08:16:05","y":"24"},{"label":"2014-10-15 08:16:00","y":"24"}]}"

now i want to convert it to array and then serparate arrays HUM - TEMP - HUM2 - TEMP2

From jQuery $.ajax() documentation on dataType when it is set to json.

"json": Evaluates the response as JSON and returns a JavaScript object. The JSON data is parsed in a strict manner; any malformed JSON is rejected and a parse error is thrown. As of jQuery 1.9, an empty response is also rejected; the server should return a response of null or {} instead. (See json.org for more information on proper JSON formatting.)

The object result is already a JSON object in the success function. So you can simply use result[0]['fruits'] or result[1]['name'] to access the relevant arrays.

Edit : Corrected index as @charlietfl pointed out.

$array3 = array(array1, array2); should be $array3 = array($array1, $array2);

In your code,

$array3 = array(array1, array2);

here array1 and array2 considered as string without quotes, so you will not get your answer. This should be PHP variable. You have to include $ sign in this.

$array3 = array($array1, $array2);