CURL POST - PHP
$post_data_arr = [
'f_name' => 'First',
'l_name' => 'Last',
];
$url = 'http://example.com';
$curl = curl_init($url);
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, $post_data_arr);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($curl);
curl_close($curl);
print_r($response);