HTTP REQUEST in curl
<p>how can I make an HTTP REQUEST in curl with json?</p>

<p>I need to put this in curl for php:</p>

<pre><code>POST /api/ra/v1/ping HTTP/1.0
Host: app.kigo.net
Authorization: Basic dXNlcm5hbWU6cGFzc3dvcmQ=
Content-Type: application/json
{
"PING" : "PONG"
}
</code></pre>

<p>Thanks in advance!</p>

<p><strong>EDIT</strong></p>

<p>This is what I've tried, but it shows "Invalid Content-Type header.":</p>

<pre><code>&lt;?php
$url = 'https://app.kigo.net/api/ra/v1/ping';
$headers = array( 'Authorization' =&gt; 'Basic dXNlcm5hbWU6cGFzc3dvcmQ=', 'Content-Type' =&gt; 'application/json' );
$ch = curl_init();
curl_setopt($ch,CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch,CURLOPT_POSTFIELDS, "PING=PONG");
$result = curl_exec($ch);
curl_close($ch);
print_r( $result );
?&gt;
</code></pre>