WordPress File wp-includes/http.php

wp_parse_url()

A wrapper for PHP’s parse_url() function that handles consistency in the return values across PHP versions.

wp_remote_get()

Performs an HTTP request using the GET method and returns its response.

wp_remote_head()

Performs an HTTP request using the HEAD method and returns its response.

wp_remote_post()

Performs an HTTP request using the POST method and returns its response.