Snippet #007 Get and Post to remote Api with Php. https://since1979.dev/snippet-007-get-and-post-to-remote-api-with-php/

de-remote-post.php

<?php
/**
 * do_remote_post.
 *
 * Make a post request to a remote api,
 *
 * @see https://since1979.dev/snippet-007-get-and-post-to-remote-api-with-php/
 *
 * @uses wp_remote_post() https://developer.wordpress.org/reference/functions/wp_remote_post/
 * @uses json_decode() https://www.php.net/manual/en/function.json-decode.php
 * @uses wp_remote_retrieve_body() https://developer.wordpress.org/reference/functions/wp_remote_retrieve_body/
 * 
 * @param String $url The url/endpoint to call
 * @param Array $data The data to send
 * @return Array
 */
function do_remote_post(String $url, Array $data = [])
{
    $response = wp_remote_post($url, array(
        'httpversion' => '1.1',
        'blocking' => true,
        'body' => $data
    ));

    return json_decode(wp_remote_retrieve_body($response)) ?: [];
}