mb_check_encoding
(PHP 4 >= 4.4.3, PHP 5 >= 5.1.3)
mb_check_encoding — Check if the string is valid for the specified encoding
说明
bool mb_check_encoding
([ string $var
[, string $encoding
]] )
mb_check_encoding() checks if the specified byte stream is valid for the specified encoding. It is useful to prevent so-called "Invalid Encoding Attack".
参数
- var
-
byte stream to check. If it is omitted, this function checks all the input from the beginning of the request.
- encoding
-
Expected encoding.
返回值
如果成功则返回 TRUE，失败则返回 FALSE。