<?php
function format_size($size, $round = 0) {
    $sizes = array(' bytes', ' kb', ' mb', ' gb', ' tb', ' pb', ' eb', ' zb', ' yb');
    for ($i=0; $size > 1024 && isset($sizes[$i+1]); $i++) $size /= 1024;
    return round($size,$round).$sizes[$i];
}

function currentURL() {
	$s = empty($_SERVER["HTTPS"]) ? '' : ($_SERVER["HTTPS"] == "on") ? "s" : "";
	$protocol = strleft(strtolower($_SERVER["SERVER_PROTOCOL"]), "/").$s;
	$port = ($_SERVER["SERVER_PORT"] == "80") ? "" : (":".$_SERVER["SERVER_PORT"]);
	return $protocol."://".$_SERVER['SERVER_NAME'].$port.$_SERVER['REQUEST_URI'];
}

function strleft($s1, $s2) {
	return substr($s1, 0, strpos($s1, $s2));
}
?>