How can I post a 2D JavaScript array to the server?

Question

I have an array, myData=[[1,2,3],[4,5,6],....,[..,..,..]] I want to post this to the server.

Usually, for a JS variable, I just put the variable into a textbox and then submit the form using JS. However, when I put the 2D array into a textbox, JS converts it to a string, such that it becomes a 1D array, which looks like: [1,2,3,4,5,6....]

I want to be able to post the entire 2D array to the server and retrieve it on the next page using PHP. How do I do that?

Thanks!

Michael Zaporozhets · Accepted Answer · 2013-02-17 04:32:24Z

1

You should use JSON to turn the array into a string with javascript and then parse the string back into an array in php.

for example:

var myData = var data = [['hooray',1],['test','meow'],[0,3,2]];
var myData_string = JSON.stringify(myData);

This will turn your object/array into a string which you can then POST and parse with php like so:

$myData = json_decode($input);

References:

answered Feb 17, 2013 at 4:32

Michael Zaporozhets

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