curl_setopt_array($curl, array(
CURLOPT_URL => 'https://api.1app.online/v1/airtime',
CURLOPT_RETURNTRANSFER => true,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => 'POST',
CURLOPT_POSTFIELDS => array('phoneno' => '07012345678','network_id' => '2','reference' => 'O4I3U8SRNYOIYT','amount' => '5000'),
CURLOPT_HTTPHEADER => array(
'Authorization: Bearer SECRET_KEY'
$response = curl_exec($curl);