asked on

How can define this $_GET["page"] variable on my page?

Hello;

Above a page i have used these 2 lines:

 $pagenum = utf8_decode(htmlspecialchars($_GET["page"])); //these 2`lines are for injection protection.
 $pagenum = mysql_real_escape_string($pagenum);

Open in new window

but in error log of php i get a notice that :

PHP Notice:  Undefined index: page

Open in new window

please let me know that where and how can define the variable 'page'?

Thanks

Dave Baldwin

$_GET["page"] only comes from a variable in a query string named 'page'. It can come from a form using 'get' or it can simply be part of the query string in a URL.

http://www.mysite.com/yourpage?page=thispage

Open in new window

http://php.net/manual/en/reserved.variables.get.php

ASKER CERTIFIED SOLUTION

Julian Hansen

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

Ray Paseur

Here is how and why you want to move to the MySQLi or PDO extensions. It's important to move to the currently supported extensions because after Jan 1, 2017, there is no supported PHP release that continues to support MySQL.
https://www.experts-exchange.com/articles/11177/PHP-MySQL-Deprecated-as-of-PHP-5-5-0.html

PHP external variables are handled this way:
http://php.net/manual/en/reserved.variables.get.php
http://php.net/manual/en/language.variables.external.php

See also:
http://php.net/manual/en/book.filter.php

MOSTAGHASSI

ASKER

Thanks for all comments,specially regarding mysqli.

Julian Hansen

You are welcome.

How can define this $_GET[&quot;page&quot;] variable on my page?

How can define this $_GET["page"] variable on my page?