How can I convert hexadecimal to a 10th integer?

How do I convert hexadecimal to a 10-digit integer dual-byte hexadecimal to a decimal form? For example: & nbsp; 0 xFFFFFFBF; hexdec & nbsp; function conversion will take 4 bytes for processing ------ solution ------------------ This post was last written by xuzuning at 2014-05-2810: 58: 00 edit $ n & nbsp; 0 xFFFFF Convert hexadecimal to a 10th integer
How do I convert two-byte hexadecimal format into decimal format?
For example: 0 xFFFFFFBF;
The hexdec function is converted to 4 bytes.
------ Solution --------------------

This post was last edited by xuzuning at 10:58:00

$ N = 0 xFFFFFFBF;
$ S = pack ('L', $ n );
Print_r (unpack ('L', $ s ));

Array
(
[1] =>-65
)