Encode array to JSON string without array indexes

Question

I'm sending a JSON string to the database from Javascript, with the following syntax:

["Product1","Product2","Product3"]

Before I simply put this data in my database without decoding it in php, and it worked without problems when using it again after retreival.

However now I need to make a few changes to the data in the string, so I decode it in PHP, which will result in an array like so:

print_r(json_decode($_POST["myjsonstring"]));
//outputs
//Array
//(
//    [0] => Product1
//    [2] => Product2
//    [3] => Product3
//)

My problem is that when I encode this array back to JSON, the string's format will be the following:

{"0":"Product1","2":"Product2","3":"Product3"}

I need the encoded string to be the same as my javascript creates, so without the array indexes. Is there an easy way to do this?

Answer 1

You want PHP's array_values() function:

$json_out = json_encode(array_values($your_array_here));