如何将数值转换为字符串？

I have a JS function which I'm passing some JSON. I produce this JSON with PHP:

<?php

$array[] = array('hello','123','456');

echo json_encode($array);

?>

This gives me something neat for JS like:

[["hello","123","456"]]

My JS function seems to like this format.

The problem I have however is when I produce a similar array directly in JS like so:

var json = [[text_var,number_var,number_var]]; // these vars established earlier in the code

var json_stringify = JSON.stringify(json);

I wind up with something that looks like this:

[["hello",123,456]]

So basically, it isn't encapsulating my numbers with quotes. I wouldn't think it would matter, but without them I get a Uncaught RangeError: Maximum call stack size exceeded

I tried doing something like preparing the JSON myself with:

var json = '[["'+place_name+'","'+longitude+'","'+latitude+'"]]';

But passing that it doesn't like either - maybe it isn't feeling it as a JSON var, and I've tried parsing that through JSON.stringify but I end up with backslashes before every quote and it doesn't like that either.

What is my feeble mind not seeing here?

EDIT: My PHP array is in another array hence the result of [["hello',"123","456"]] and not single brackets [ ]

Convert numbers to strings:

var json = [[text_var,number_var.toString(),number_var.toString()]];

JSON supports numbers (without quotes) and strings (with quotes). To force it to use strings, try:

var json = [[text_var,number_var + "",number_var + ""]];