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

If you have non-scalar values you should serialize and unserialize them. You have multiple options:

1. PHP's serialize and unserialize
2. JSON encode and decode

As a general rule, if you put any value in HTML you need to encode its HTML special chars.

Use case: