[TriLUG] Restricting access within PHP

[Tobias Crawley]

Mark,

Assuming you are running Apache, the following will work to prevent
users not in the 192.168.1.x subnet from seeing the page, and will
redirect them to another page instead.

if ( strpos( $_SERVER[ 'REMOTE_ADDR' ], '192.168.1.' ) === false ) {
  //redirect to another page
  header( 'location: otherpage.php' );
}

You could use regular expressions (via preg_match()) instead of
strpos(), but strpos() is faster. Not that the speed makes a
difference in this example.

Toby

On 6/24/05, Mark Freeze <mfreeze at gmail.com> wrote:
> What is the best way to restrict access to a few of my web pages to a
> certain range of ip addresses?  What I am trying to do is only allow
> employees to browse their timecard tables while at work but not from
> their homes.  All of my servers are offsite with Network Solutions and
> I do not have much, if any access to the setup and control functions
> that I would have if I were hosting this myself.
> 
> Any info on the best way to accomplish my task would be greatly appreciated.
> 
> Thanks,
> Mark.
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-- 
Tobias O. Crawley / tcrawley at gmail.com / http://tobiascrawley.net/
"Arrogance is quoting yourself." - Tobias O. Crawley
"Ignorance is quoting others." - Aaron T. Dixon