Undefined Variable Question....

[netfrugal]

when I check the error logs I notice that I keep getting this PHP Notice:

PHP Notice: Undefined variable: sent in /var/www/html/survey/index.php on line 48

The undefined variable is simply this below:

<? if($sent) { echo 'survey alerts sent!'; } else { echo ''; } ?>

I include this conditional statement. If survey emails are sent from a previous page I append this to the URL string: index.php?sent=1 which is a redirect to index.php

But I wanted to show the words: "survey alerts sent!"

Am I performing inaccurate php coding with this variable? Is there a better way to do this?

I hope I was clear!

thanks!

[netfrugal]

Nevermind! Since I was defining the variable as: index?sent=1 then I figured out that I must change the code from:

<? if($sent) { echo 'survey alerts sent!'; } else { echo ''; } ?>

to

<? if($sent = 1) { echo 'survey alerts sent!'; } else { echo ''; } ?>

[NogDog]

No, now you're setting $sent to a value of 1, and as such it will always evaluate as TRUE. What you probably want is:

<?php if(!empty($sent)) { echo 'survey alerts sent!'; } else { echo ''; } ?>

[netfrugal]

You're right! It was always showing the "survey alerts sent!" message.