sending multidimensional array via ajax, index[0] problems

Question

I'm trying to send a multidimensional array from php to Javascript/jQuery but I'm having a problem.

When I'm sending index 0 via json_encode($array); , the client receives the response in the format I want:

[[0,0],[1,0.031410759078128],[2,0.062790519529313],[3,0.094108313318514].etc..]

When I inspect with firebug, the index 0 array sent doesn't seem to arrive with JSON?

When I send any other index of the array, the client receives the array in this format(which I don't want):

{"1":[1,0.031410759078128],"2":[2,0.062790519529313],"3":[3,0.094108313318514].etc..}

when I inspect the arrays received by the client when the index is anything other than 0, I can clearly see that it was sent using JSON.

What's the problem, and how can I get all of my indexed arrays sent using the same format as my array[0] ?

Here's my php code:

$strJEncoded = json_encode($array);
echo $strJEncoded;

Here's my JS/Jquery code:

$res = jQuery.parseJSON(response);

Answer 1

By default, json_encode() will only produce a JSON array if the array indexes are sequential numbers starting from 0 . Otherwise, it produces a JSON object.

You can use array_values() to return an array with the indexes renumbered from 0 .

$strJEncoded = json_encode(array_values($array));