php failed to call curl command

I want to get the data from a curl command in php for further processing.

I am facing an issue with the code when I use it in php. The curl command looks good for me when I run it in the system.

My code is as follows:

<?php

function getJsonFromUrl($urlString) {
    $urlData = shell_exec('curl --silent --request GET --url '' . $urlString . '' --user 'root:password' --header 'Accept: application/json'');
    $jsonData = json_decode($urlData, true);
    return $jsonData;
}

$data = array(
    'id' => '',
    'parent' => '',
    'issueId' => '1931461',
    'issueType' => ''
);

$url = "https://jira.myorg.com/rest/dev-status/1.0/issue/detail?issueId={$data['issueId']}&applicationType=stash&dataType=repository";
$jsonData = getJsonFromUrl($url);
?>

I am getting the following errors:

‘applicationType’ is not recognized as an internal or external
command,
operable program or batch file.

‘dataType’ is not recognized as an internal or external command,
operable program or batch file.

Deprecated: json_decode(): Passing null to parameter #1 ($json) of
type string is deprecated in C:UsersAdministratorDocumentstest.php
on line 4

Please help me with it