function get_file_size($bytes){
	if($bytes<1000*1024){
		return number_format($bytes/1024,2)."KB";
	}
	elseif($bytes<1000*1048576){
		return number_format($bytes/1048576,2)."MB";
	}
	elseif($bytes<1000*1073741824){
		return number_format($bytes/1073741824,2)."GB";
	}
	else{
		return number_format($bytes/1099511627776,2)."TB";
	}
}

//список
print_r(glob(ROOT_DIR.RESIZE_CACHE_DIR."*".$fname));
//удалить по маске
foreach(glob(ROOT_DIR.RESIZE_CACHE_DIR."*".$fname) as $file){
	unlink($file);
}

function ucfirst_utf8($str){
	return mb_strtoupper(mb_substr($str,0,1)).mb_substr($str,1);
}
echo ucfirst_utf8("предложение с большой буквы");

$result=array_diff($all_files,$current_files);

$zip=new ZipArchive;
$zip->open(ROOT_DIR.IMPORT_DIR.'import.zip');
for($i=0;$i<$zip->numFiles;$i++){
	$stat=$zip->statIndex($i);
	$import_file=basename($stat['name']);
	echo $import_file."\r\n";
}
$zip->extractTo(ROOT_DIR.IMPORT_DIR);
$zip->close();

function remove_bom($str=""){
	if(substr($str,0,3)==pack('CCC',0xef,0xbb,0xbf)){
		$str=substr($str,3);
	}
	return $str;
}

define('HTTP_USER','user');
define('HTTP_PASS','pass');
if(isset($_SERVER['PHP_AUTH_USER'])&&($_SERVER['PHP_AUTH_PW']==HTTP_PASS)&&(strtolower($_SERVER['PHP_AUTH_USER'])==HTTP_USER)){
	//success
}
else{
	header('WWW-Authenticate: Basic realm="Authorization required"');
	header('HTTP/1.0 401 Unauthorized');
	echo 'Authenticate required!';
	exit();
}