passing Javascript array or object to PHP

Question

I have reached here after doing a lot research, Its simple task creating a lot heck I am unable to pass javascript array to php some links which i viewed 1, 2, 3

I have created javascript object

obj={};

//for each loop of table to create the key - value pair of object

obj[$(r).find('td:eq(2)').html()]=i+1;

//end of for each loop

//now I console the object which shows in console like this console image of object

after doing this var myJSON =JSON.stringify(obj);

I get the result as empty json string,I want to pass this sting to php via ajax, Not able to figure out why I have tried creating array as well, need help

enter image description here

fiddle link here here is full code

 $fields_table=$('#datatableRank');
 obj={};
 table.on( 'row-reorder', function ( e, diff, edit ) {
 setTimeout(function() {
 // Update the field order values
 $fields_table.find('tbody').find('tr').each(function(i,r){
 //var element = {};
 //element.id = $(r).find('td:eq(2)').html();
 //element.quantity = i+1;
 //obj.push(i+1);
 //obj1.push($(r).find('td:eq(2)').html());
 $(r).find('td:eq(0)').html(i+1);
 obj[$(r).find('td:eq(2)').html()]=i+1;
 });
 }, 10); // Give it time to load in the DOM
 console.log(obj);
 var myJSON =JSON.stringify(obj);
 console.log(myJSON);
 }`

• Metabolic: Please post your code so that we can have a look
• samiles: Have you written the AJAX code? It's pretty simple to send JSON over AJAX with jQuery. See jQuery AJAX docs here.
• Matt: Presumably obj is defined and has the expected value?
• krillgar: Properties should not begin with a number as they aren't valid in most languages.
• Matt: Can you provide some sample HTML too. Ideally a jsFiddle showing the issue.

Answer 1

turning out to be another rat in pipe everything was perfect only issue was with setTimeout function() I had to console the code in settimeout function , now I wrote the ajax code inside the settimeout and thats it pretty dumb I am

• Matt: You found the solution. No problems with that. Good job.

Answer 2

You can post data to php file , jquery post

like this

$.post( "yourfile.php", { data: myJSON })
 .done(function( data ) {
 alert( "Data Loaded: " + data );
 });

then get it from php file "yourfile.php"

json_decode($_POST["data"])