How to pass multi-dimensional array with Jquery AJ

问题:

I've been using Serialize() to pass checkbox form data with Post() for a basket that can hold multiple items of the same category.

When I post them using the submit button it works fine with multiple values being passed and displayed under one category.

However when I used Jquery serialize() it will only show one item per category and only two categories in total. This is an array issue but I cannot work it out.

Is there an alternative JQuery function i should be using to pass a multi-dimensional array?

回答1:

Jquery will take multi dimensional arrays directly, no need to serialize.

var data = {
  foo:  123,
  bar:  456,
    rows: [
      {
        column1 : 'hello',
        column2 : 'hola',
        column3 : 'bonjour',.
      },
      {
        column1 : 'goodbye',
        column2 : 'hasta luego',
        column3 : 'au revoir',
      },
    ],
    test1:{
      test2: {
        test3:  'baz'
      }
    }
};

_Post Data in your PHP file would look like this

Array
   (
    [foo] => 123
    [bar] => 456
    [rows] => Array
        (
            [0] => Array
                (
                    [column1] => hello
                    [column2] => hola
                    [column3] => bonjour
                )

            [1] => Array
                (
                    [column1] => goodbye
                    [column2] => hasta luego
                    [column3] => au revoir
                )

        )

    [test1] => Array
        (
            [test2] => Array
                (
                    [test3] => baz
                )

        )

    )

Once you define your data multidimensional array, your Ajax could be as simple as

$.ajax({
          type:           'post',
          cache:          false,
          url:            './ajax.php',
          data:           data
      });

If your post array may have fields that you don't know about, you can access your Post array in your php file easily with

$data = file_get_contents('php://input');
$data = json_decode($data, true);

回答2:

I did not find any good solution, so i solved this using JSON.stringify(); here is my code

Client side :

var data = {a:{'foo':'bar'},b:{'this':'that'}};
$.ajax({ url        : '/',
         type       : 'POST',                                              
         data       : {'data':JSON.stringify(data)},
         success    : function(){ }
       });

Server Side:

$data = json_decode($_POST['data']);
print_r($data);
// Result:
// Array( "a" => Array("foo"=> "bar"), "b" => Array("that" => "this"))

回答3:

$.post(url, {"myarray":arrayData}, function(data){/*stuff*/}, 'json');

server side you would access it for example with php

$myArray = $_POST['myarray'][0];
foreach($myArray as $item)
{
   /*logic here for picking apart your array*/
}

回答4:

From the jQuery docs:

For a form element's value to be included in the serialized string, the element must have a name attribute. Values from checkboxes and radio buttons (inputs of type "radio" or "checkbox") are included only if they are checked.

Check your code for that first. Hard to help further without seeing your code.

回答5:

Here is my metacode fragment, which works fine for me ...

    var f={};  

    f.text = "SOME DATA";
    f.any_other_field = some_other_value;
    f.items = [];

    $("#droppable .or").each(function(ee){
          var tmp={};
          tmp.id    = $(this).data("cid");
          tmp.name  = $(this).find(".ornazev").text();
          tmp.price = $(this).data("price");
          tmp.currency = $(this).data("currency");
          tmp.ks    = 1;  
          f.items.push(tmp);
    });
    $.ajax({
      type: "POST",
      url: urlsave,
      data: {"f":f},
      dataType: "text",
.....