如何从ajax调用传递的php访问数组中的所有元素？

Question

I am finding difficulty in accessing elements in an array from php file. The array is passed through an ajax call. Please find below the ajax call.

var data = ['test1', 'test2', 'test3'];
$(document).ready(function () {
    $("button").click(function () {
        $.ajax({
            type: "POST",
            url: "getResult.php",
            data: {
                testData: data
            },
            success: function (data, status) {
                alert("Data: " + data + "
Status: " + status);
            }
        });
        return false;
    });
});

The server side [PHP] code is

$myArray = $_POST["testData"];
echo $myArray; 

However $myArray always returns last element[test3 here] in the array. How do I access first [here test1] and other elements? Pls help.

Answer 1

What you need to do is convert the JavaScript array to JSON and then send over that JSON. On the PHP side you should decode the JSON back into an array. Finally, you should re-encode the array as JSON before sending it back.

On your client side change one line:

data: {testData : JSON.stringify(data)},

On your server side do:

$myArray = json_decode($_POST["testData"]);
header('Content-Type: application/json');
echo json_encode(array('pheeds' => $pheeds, 'res' => $res));