求php下CRC-16代码，用！该怎么解决
求php下CRC-16代码，急用！！！
向设备发送数据，需要crc的16位校验码，google了半天，没发现有Php写的crc16代码。
php自带了crc32()函数，只能生成32位的校验码，但是我需要16位的校验码，因为设备只认识16位的校验码。
环境是UBUNTU+APACHE2+PHP5+MYSQL5+ADODB.
如果有其他语言写的CRC 16算法，比如VB写的，我用php怎样调用可以使其生成16位校验码并返回到php？
------解决方案--------------------
这个是你要的吗？
http://www.lammertbies.nl/forum/viewtopic.php?t=1005
如果是其他语言写的，你可以把它变成可执行的文件，然后在php中用system函数调用这个程序取得返回值。
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