mhash

[juschillinnow]

function hmac ($key, $data)
{
return (bin2hex (mhash(MHASH_MD5, $data, $key)));
}

when I use this in a script...is says that mhash is not a recognizeable function. Isn't is standard on php, or do I have to install something?

[nnichols]

You need to compile PHP with the --with-mhash[=DIR] parameter to enable this extension.