This is a common function library. And it is very practical.
在开启命名空间情况下(asf.use_namespace=1)类名为 Asf\Util
<?php final class Asf_Util { public static string ip(void) public static string bytes2string(int $size [, bool $space = 1]) public static string guid(void) public static mixed atrim(mixed $data) public static mixed filterXss(mixed $data) public static string cpass(string $data) public static bool iniSets(array $ini) public static bool isEmail(string $email) public static string fileExt(string $filename) public static string getUrl(string $url [, array $opts = array()]) public static string postUrl(string $url [, array $data = array() [, array $opts = array()]]) }