confused about magic quotes

[Christopher-Robin]

Hi!

I got a problem:
The server im running my scripts on has <magic_quotes_gpc=ON>. I know, that
I just have to stripslashes() the GPC data. But what if
<magic_quotes_sybase> is also set ON? The doc says, that in this case only
<'> is replaced by <''>, and nothing happens to <">, <\> and NUL, because
<magic_quotes_sybase> overwrites <magic_quotes_gpc> behavior. Unfortunately,
the doc says nothing about the case <magic_quotes_gpc=OFF> PLUS
<magic_quotes_sybase=ON>. Does in this case nothing happen to GPC data, as
<magic_quotes_gpc> is set OFF? Or does it result in the same <'> to <''>
replacement, as <magic_quotes_sybase> is set ON? What's <sybase>, anyway?

I was about to implement a function as follows:

function stripslashes_mq_gpc($txt){
if(get_magic_quotes_gpc()==1){
if(get_ini("magic_quotes_sybase")==1){
$txt=preg_replace("/('')/musi","'",$txt);
// rather use str_replace() ??
}else{
$txt=stripslashes($txt);
}
}
return $txt;
}
The same is to be done for <magic_quotes_runtime>, but there's nothing
written about the interaction of <magic_quotes_runtime> and
<magic_quotes_sybase>. So, could anyone help me, please?

Thanks,
Kai aka Christopher-Robin

PS: Apologies for my bad english.