Time Access

[wwedude]

Is their a way in which I could limit viewing the page, for example after you visit the page, you can't again for 1 day?

 

Thanks for any help!

[rhodesa]

once you distinguish a 'user', you can just log in a database when they visit a page, and then restrict them from doing so again for specific amount of time....that is the easy part

 

the hard part is distinguishing a 'user'. if you have a login/pass set up already, you are good to go. but if it's just anonymous users, there is no full proof way. you can log their IP, but that can be spoofed. you can use a cookie, but those can be disabled/manipulated.

 

...hope that helps

[.josh]

Not reliably, unless you force some kind of login system.

 

edit: sorry. basically what ^ said.

[kratsg]

The following methods do work (and downfalls explained):

 

1.) IP Logging

2.) Cookies

3.) Sessions

 

1.) An IP can be changed by many methods (such as proxies) and it also can be random based on their choice of web browser (such as AOL for instance).

2.) Cookies can be disabled, deleted, and possibly manipulated (for those skilled in cookie manipulation)

3.) Sessions time-out when the browser closes (unless you otherwise define it, but then it becomes almost identical to a cookie)

[wwedude]

once you distinguish a 'user', you can just log in a database when they visit a page, and then restrict them from doing so again for specific amount of time....that is the easy part

 

the hard part is distinguishing a 'user'. if you have a login/pass set up already, you are good to go. but if it's just anonymous users, there is no full proof way. you can log their IP, but that can be spoofed. you can use a cookie, but those can be disabled/manipulated.

 

...hope that helps

 

I do have a user system, and I will be requiring login to access this page. So what I would do, is access the database, see when they last visited, and seeing if that is less than x amount.?

[rhodesa]

correct....more detailed help requires more info on what you are trying to do...

 

are you trying to block them all together? just one page? several pages which have independent trackers per user?

[wwedude]

Just one page.

[rhodesa]

so yeah, just add a column to your users table (or create a new table that you can do a JOIN with). make the column an INT or a DATETIME type. The following code assumes it's an INT type and should be put at the top of that page.

 

<?php
  //Put the code that confirms the person is logged in here
  //Assuming the user's unique identifier is $userid

  //Select the value from the lastVisit field and store it into $lastVisit
  list($lastVisit) = mysql_fetch_array(mysql_query("SELECT `lastVisit` FROM `users` WHERE `userid` = '{$userid}' LIMIT 1"));

  //Check the time
  $diff = 60 * 60 * 24; //1 day in seconds
  if($lastVisit && time() - $lastVisit < $diff){
    print "Denied";
    exit;
  }

  //Update table
  mysql_query("UPDATE `users` SET `lastVisit` = '".time()"' WHERE `userid` = '{$userid}' LIMIT 1");

  //Continue with page
?>