If you need to do a CURL request within the context of a WordPress plugin or Theme, then the code below is the simplest.
For additional examples, please check: https://developer.wordpress.org/reference/functions/wp_remote_post/
Basic Request
This would be for a basic request.
<?php
###################################
# CURL with Wordpress
# See: https://www.jucra.com/whmcs/knowledgebase/177/
###################################
$data = array(
'key1' => 'value1',
'key2' => 'value2'
);
$response = wp_remote_post( 'http://httpbin.org/post', array( 'data' => $data ) );
Request With Auth Headers
You can add your auth headers if that's required of the remote API.
<?php
###################################
# CURL with Wordpress
# See: https://www.jucra.com/whmcs/knowledgebase/177/
###################################
$data = array(
'key1' => 'value1',
'key2' => 'value2'
);
$response = wp_remote_post( 'http://httpbin.org/post',
array(
'body' => $data,
'headers' => array(
'Autorisation' => $api_key,
),
)
);
Then to grab the $response use $reponse["body"];
