WordPress at a glance
function is not described

RSSCache::file_name() public WP 1.0

{} It's a method of the class: RSSCache{}

No Hooks.

Return

null. Nothing.

Usage

$RSSCache = new RSSCache();
$RSSCache->file_name ( $url );
$url (required)
-

Code of RSSCache::file_name() WP 5.7.2

<?php
function file_name ($url) {
	return md5( $url );
}