Loader.io - PHP, curl and json - php

Question

I'm evaluating loader.io for a client and I'm having issues getting the APi to work correctly. I'm on PHP 7
http://docs.loader.io/api/v2/post/tests.html#url-options
I'm stuck on 'create test'.
The docs say:
curl -X POST -H 'loaderio-auth: API_KEY' -H 'Content-Type: application/json' --data-binary '{"test_type":"cycling", "total": 6000, "duration":60, "urls": [ {"url": "http://gonnacrushya.com"} ]}' https://api.loader.io/v2/tests
That's great! When I add my APi Key and correct URL, it runs just fine, the test is created.
Buuuut..
I want to do this in ajax via a Symfony2 app.
Here's what I've got that's returning the error:
urls param has incorrect format
function myAjaxCalledFunction() {
$test_data = '{"test_type":"cycling", "total": 10, "duration":5, "urls": [{"url": "http://www.my-configured-url.com"}] }';
return $this->doCurlRequest('tests', 'POST', $test_data);
}
public function doCurlRequest($what_call, $request = 'GET', $post_data = null)
{
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://api.loader.io/v2/' . $what_call);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('loaderio-auth: ' . $this->loader_api_key));
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $request);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1 );
curl_setopt($ch, CURLOPT_POST, 1 );
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data );
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-type: application/json'));
$response = curl_exec($ch);
return new Response($response);
}
is there a curl_setopt() that I'm missing?

Answer 1

You are setting option CURLOPT_HTTPHEADER twice. That's why it is ignoring the first one. You can push both of them into the array like below example:
curl_setopt($ch, CURLOPT_HTTPHEADER,
array('loaderio-auth: ' . $this->loader_api_key,
'Content-type: application/json'));