javascript - jQuery AJAX with Multiple Array data Parameters -

i've posted single array, can't figure out how send more 1 array in ajax post. here code 1 array:

var = new array(); // fill array var a_post = {}; a_post['array1[]'] = a;  $.ajax({     url: "submitorder.php",     data: a_post,     type: 'post',     success: function(data) {         alert(data);     } }); 

and in submitorder.php have:

$array1= $_post['array1'];  foreach ($array1 $a => $b) echo "$array1[$a] <br />"; 

this works fine. however, when try add second array b_post data: field, doesn't work. tried data: {a_post, b_post}, , few variations of that, can't work properly. while i'm @ it, how load submitorder.php after posting rather show alert of data?

update

using nicolas' suggestion, got work changing data field to:

data: {'array1':json.stringify(a), 'array2':json.stringify(b)}, 

however, need add rest of form data has been input user. can data $(this).serialize() if try add data field, not work. how can add data above line?

thanks.

solution

what ended working way had hoped (with nicolas' help):

var formdata = $(this).serializearray(); var a_string = json.stringify(a); formdata.push({name: 'array1', value: a_string}); var b_string = json.stringify(b); formdata.push({name: 'array2', value: b_string});  $.ajax({     url: "submitorder.php",     data: formdata,     type: 'post',     success: function(data) {         alert(data);     } });             

the data should encapsuled way

data: {'first_array':json.stringify(array1),'second_array':json.stringify(array2)} 

then in php:

$array1 = json_decode($_post['first_array']); $array2 = json_decode($_post['second_array']); 

you can add rest of inputs well.

data: {'first_array':json.stringify(array1),'second_array':json.stringify(array2),'input1':$(input[name="input1"]).val()} 

just repeat inputs want send.

'input1':$(input[name="input1"]).val(),'input2':$(input[name="input2"]).val(),... etc