Create JSON data in specific format

Question

I need to create data as this:

{v: 1.0, f: '<h1>1.0</h1>'}

...

but now I only know how to get first parametr so I get: {v: 1.0} ,

with this code:

 $temp[] = array('v' => (string) $naziv);

what I need to add to my code: $temp[] = array('v' => (string) $naziv); to get like this json: {v: 1.0, f: '<h1>1.0</h1>'}

Answer 1

$naziv = 1.0;
$header ='<h1>1.0</h1>';

$temp[] = array('v' => (string) $naziv,
                'f' => (string) $header
          );

echo json_encode($temp);

or

$naziv = 1.0;
$header ='<h1>1.0</h1>';

$temp['v'] = $naziv;
$temp['f'] = $header;

echo json_encode($temp);

Answer 2

<?php

$naziv = 1.0;

$temp = array(
    "v" => $naziv
    "f" => "<h1>{$naziv}</h1>",
);

echo json_encode($temp);

This will result in

{"v":1.0,"f":"<h1>1.0</h1>"}