PUTting data fields with PHP cURL

This is a little post about how to PUT multiple data fields using the PHP cURL extension. Why I wanted to do this in the first place is beyond the scope of this post, since its quite a long story. The curl command line allows data fields to be sent with a PUT request, and I wanted to do the same from PHP. Here is a snippet of code to show how I did it.

<?php
$data = array(
    "id" => 10,
    'name' => 'Pritom K Mondal',
    "roll" => "00+060238=25 & this would be a nice day &amp; hmm.",
    'items' => array(
        'Yellow Jacket',
        'item_2' => "Red Shirt",
        'attributes' => array(
            'color' => "Red",
            "Size of Shirt" => array(
                "Normal" => "1 inch",
                "Midium Shirt" => "10 inch"
            )
        )
    )
); 
$ch   = curl_init("http://localhost/ck/put2.php");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "PUT"); 
curl_setopt($ch, CURLOPT_POSTFIELDS, makeRawQuery($data)); 
$response = curl_exec($ch);
if (!$response) {
    return false;
} 
print_r($response);

function makeRawQuery($data, $keyPrefix = "")
{
    $query = "";
    foreach ($data as $key => $value) {
        if (is_array($value)) {
            if (strlen($keyPrefix) > 0) {
                $keyPrefixDummy = $keyPrefix . "[" . $key . "]";
            } else {
                $keyPrefixDummy = $key;
            }
            $query .= makeRawQuery($value, $keyPrefixDummy);
        } else {
            if (strlen($keyPrefix) > 0) {
                $key = $keyPrefix . "[" . $key . "]";
            }
            $query .= $key . "=" . rawurlencode($value) . "&";
        }
    }
    return $query;
} 
?>

put2.php

<?php
echo "RECEIVED DATA: \n"; parse_str(file_get_contents("php://input"), $post_vars);
print_r($post_vars);
echo "\nREQUEST METHOD: " . $_SERVER['REQUEST_METHOD'];?>

And output is as following of print_r($response) in put.php:

RECEIVED DATA: 
Array
(
    [id] => 10
    [name] => Pritom K Mondal
    [roll] => 00+060238=25 & this would be a nice day & hmm.
    [items] => Array
        (
            [0] => Yellow Jacket
            [item_2] => Red Shirt
            [attributes] => Array
                (
                    [color] => Red
                    [Size of Shirt] => Array
                        (
                            [Normal] => 1 inch
                            [Midium Shirt] => 10 inch
                        )

                )

        )

)

REQUEST METHOD: PUT