# Define var!

**URL:** <https://forum.kirupa.com/t/define-var/38096>\
**Category:** Uncategorized\
**Created:** [December 18, 2003, 6:57am UTC](https://forum.kirupa.com/t/define-var/38096 "2003-12-18T06:57:25Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![OKtrust](https://avatars.discourse-cdn.com/v4/letter/o/c77e96/32.png) [@OKtrust](https://forum.kirupa.com/u/OKtrust)\
**Post date:** [December 18, 2003, 6:57am UTC](https://forum.kirupa.com/t/define-var/38096/1 "2003-12-18T06:57:25Z")

</div>

hi guys,  
I’m trying to code this:

\<?  
$count++;  
setcookie(‘count’, $count);  
print “$count”;  
?\>

and when I run it on my localhost, it erro:

Warning: Undefined variable: count in c:\www\phptest\cookie.php on line 2

Warning: Cannot add header information - headers already sent by (output started at c:\www\phptest\cookie.php:2) in c:\www\phptest\cookie.php on line 3  
1

please show me how to correct (define var) them ? thanks.