ops-Gazelle/feeds.php

<?php
/*-- Feed Start Class ----------------------------------*/
/*------------------------------------------------------*/
/* Simplified version of script_start, used for the     */
/* sitewide RSS system.                                 */
/*------------------------------------------------------*/
/********************************************************/

// Let's prevent people from clearing feeds
if (isset($_GET['clearcache'])) {
    unset($_GET['clearcache']);
}

require_once(__DIR__.'/classes/config.php');
require_once(__DIR__.'/classes/classloader.php');

$Cache = new CACHE($MemcachedServers);
$Feed = new Feed;

function make_utf8($Str) {
    if ($Str != '') {
        if (is_utf8($Str)) {
            $Encoding = 'UTF-8';
        }
        if (empty($Encoding)) {
            $Encoding = mb_detect_encoding($Str, 'UTF-8, ISO-8859-1');
        }
        if (empty($Encoding)) {
            $Encoding = 'ISO-8859-1';
        }
        if ($Encoding == 'UTF-8') {
            return $Str;
        } else {
            return @mb_convert_encoding($Str, 'UTF-8', $Encoding);
        }
    }
}

function is_utf8($Str) {
    return preg_match('%^(?:
		[\x09\x0A\x0D\x20-\x7E]			 // ASCII
		| [\xC2-\xDF][\x80-\xBF]			// non-overlong 2-byte
		| \xE0[\xA0-\xBF][\x80-\xBF]		// excluding overlongs
		| [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2} // straight 3-byte
		| \xED[\x80-\x9F][\x80-\xBF]		// excluding surrogates
		| \xF0[\x90-\xBF][\x80-\xBF]{2}	 // planes 1-3
		| [\xF1-\xF3][\x80-\xBF]{3}		 // planes 4-15
		| \xF4[\x80-\x8F][\x80-\xBF]{2}	 // plane 16
		)*$%xs', $Str
    );
}

function display_array($Array, $Escape = []) {
    foreach ($Array as $Key => $Val) {
        if ((!is_array($Escape) && $Escape == true) || !in_array($Key, $Escape)) {
            $Array[$Key] = display_str($Val);
        }
    }
    return $Array;
}

header('Cache-Control: no-cache, must-revalidate, post-check=0, pre-check=0');
header('Pragma:');
header('Expires: '.date('D, d M Y H:i:s', time() + (2 * 60 * 60)).' GMT');
header('Last-Modified: '.date('D, d M Y H:i:s').' GMT');

$Feed->UseSSL = (isset($_SERVER['SERVER_PORT']) && $_SERVER['SERVER_PORT'] == 443);
require(__DIR__ . '/sections/feeds/index.php');