Re: Re: does this mean ....

"r+" allows you to read and write... if that's what you wanted (I think it is). Note that it will write over any data that is behind the location of the file pointer (so write to the end of the file). "Peter" <php@vfsa.com.au> wrote in message news:DPEPKCNEFOKBCNNANCIPEEJCCGAA.php@vfsa.com.au... > > > > -----Original Message----- > > From: David Robley [mailto:robleyd@paradise.net.nz] > > Sent: Tuesday, 23 July 2002 10:41 AM > > To: php-general@lists.php.net > > Subject: [PHP] Re: does this mean .... > > > > > > In article <DPEPKCNEFOKBCNNANCIPMEINCGAA.php@vfsa.com.au>, > > php@vfsa.com.au > > says... > > > hi all, > > > > > > I'm tring to make a script to prompt for a username & then a password = > > > for that user onto the actual machine rather than just a web site... > > > > > > now i've come across this this line in some documentation > > > > > > if ( $File =3D popen( "$useradd_prog $useradd_name", "r" ) ) > > > { > > > . > > > . > > > . > > > now to my actual question .. > > > > > > does that "r" just mean read? and if so should that "r" be a > > > "w" for = > > > write in order for it to work? > > > > > > > > > > > > Cheers=20 > > > > > > Peter=20 > > > "the only dumb question is the one that wasn't asked"=20 > > > =20 > > > > If you are just checking the name/password against an existing list, then > > you only need read. If you want to add something, then you need a > > different mode. > > > > However, I think you may be better off uing fopen, instead of popen, if > > you are trying to do what I think you are. The documentation for > > fopen has > > a comprehensive description of the modes available; note that w is kindof > > destructive in the wrong context :-) > > > > Cheers > > -- > > David Robley > > Temporary Kiwi! > > > > Quod subigo farinam > > > i'm tring to run the useradd command (under Solaris) to add a user to the > system so i don't have to continueously remote log in and also make it > easier for myself to add users to the system(s).. maybe popen isn't the best > option for this .. though i don't think fopen will be able to do what i need > it to do.. maybe playing around with sockets would be better? > > > Cheers > > Peter > "the only dumb question is the one that wasn't asked" > >