I'm attempting to pass 4 pieces of data through ajax post (3 text strings, and 1 multidimensional array of text strings). When I make my ajax request, I'm only able to retrieve the 3 text strings, not the array. This is my function that houses the ajax request...
function page_load(page_num, prev_page, next_page, form_arr)
{
$.ajax({
type: 'post',
cache: false,
url: 'page_content.php',
data: {'page_num' : page_num,
'prev_page': prev_page,
'next_page': next_page,
'form_arr' : form_arr
}
}).done(function(data){
$('#main_content').empty().html(data);
});
}
When the function is executed, all data is (supposed to be) passed to "page_content.php", where I pull the form_arr parameter (with no success)...
<?php
//test parameter pull
echo '<pre>';
var_dump($_POST);
echo '</pre>';
?>
What I see is this...
array(3) {
["page_num"]=>
string(5) "start"
["prev_page"]=>
string(1) "0"
["next_page"]=>
string(1) "1"
}
I've confirmed that the array is being created properly and passed successfully to the "page_load" function (I've been able to loop through the array inside the function, and alert each string). If I change the "form_arr" variable to a string, instead of an array, outside of the function, I am able to pull it, just like the other 3 parameters.
Is there something that I'm missing with this?
This is my entire js file...
$(document).ready(function()
{
//initial page load
var page_num = 'start';
var prev_page = 0;
var next_page = 1;
var form_arr = new Array();
var form_element = new Array();
form_element['name'] = 'TAG NAME';
form_element['value'] = 'N/A';
form_arr.push(form_element);
page_load(page_num, prev_page, next_page, form_arr);
//START button click event handler
$('#main_content').delegate('a.button', 'click', function(e)
{
var btn_id = $(this).attr('href');
if(!$(this).hasClass('disabled')){
//call button_click function
button_click($(this), btn_id);
}
e.preventDefault();
});
//END button click event handler
$('#main_content').delegate('form', 'submit', function(e){
e.preventDefault();
});
//START "other" option select from dropdown
$('#main_content').delegate('select.dropdown', 'change', function(e)
{
var selected = $(this).find("option:selected");
var target = $(this).children('option.trigger').attr('class').replace('trigger ', '');
if(selected.hasClass('trigger'))
{
$('.hidden_view.' + target).show();
}else
{
$('.hidden_view.' + target).hide();
}
});
//END "other" option select from dropdown
/*** FUNCTIONS ***/
//START button_click function
function button_click(btn_obj, btn_id)
{
//set next and previous page values
var page_num = parseInt(btn_id);
var prev_page = page_num - 1;
var next_page = page_num + 1;
/* START LOOP THROUGH FORM AND PULLING VALUES */
var form = btn_obj.parent();
var form_arr = form_element_loop(form);
page_load(page_num, prev_page, next_page, form_arr);
}
//END button_click function
//START page_load function
function page_load(page_num, prev_page, next_page, form_arr)
{
var ajaxData = JSON.stringify(form_arr);
$.ajax({
type: 'post',
cache: false,
url: 'page_content.php',
data: {'page_num' : page_num,
'prev_page': prev_page,
'next_page': next_page,
'form_arr' : ajaxData}
}).done(function(data){
$('#main_content').empty().html(data);
});
}
//END page_load function
//START form_element_loop function
function form_element_loop(form)
{
var form_arr = new Array();
var x = 0;
$(form).children().each(function()
{
var element_tag = $(this).prop('tagName').toLowerCase();
if(element_tag == 'section' || element_tag == 'article' || element_tag == 'div')
{
if($(this).is(':visible'))
{
$(this).children().each(function(){
var element_tag = $(this).prop('tagName').toLowerCase();
var form_element = form_element_switch($(this));
});
}
}else
{
var form_element = form_element_switch($(this));
}
if(form_element.length > 0)
{
form_arr[x] = form_element;
}
x++;
});
return form_arr;
}
//END form_element_loop function
function form_element_switch(form_obj, form_tag)
{
var form_element = new Array();
switch(form_obj.prop('tagName').toLowerCase())
{
case 'a':
break;
case 'label':
break;
case 'input':
form_element['name'] = form_obj.attr('name');
form_element['value'] = form_obj.val();
break;
case 'select':
form_element['name'] = form_obj.attr('name');
form_element['value'] = form_obj.find(':selected').text();
break;
}
return form_element;
}
});