how to pass array through hidden field

Question

here my code

$order[$j][0]=\"Euclidean Geomethiyil Kodpagugal\";
$order[$j][1]=$q16;
$j++;

hidden field-

Answer 1

Try json_encode:

and for get it back, json_decode:

print(json_decode($_POST['hdnOrder']));

The bonus of this solution is that you will able to manipulate your array at client side easily with JavaScript.

But why do you want to do that ?

If it is not for manipulate your data at client side, you create an an unnecessary round trip of your data, that you can easily keep at server side with PHP sessions.