Problem with phpscript

In the below script you see a string length counter

This script is working fine but i have a problem

When first time i open this page in my browser it show an error in line 2
(explained in image 2)

But when u enter the test string the error removed

I can't remove the 'test' variable
b'coz i have to work with it

Can anybody help me to to remove this erro line in the browser

Image 1


Image 2


Image 3

 

Make it so once you press "click here" it echo the variable , so it isnt there before.

 

That's a notice, not an error.

You have to check that the element exists in the array first.

Instead of:

$var = $_GET["test"];
$len = strlen($var);

PHP:

You would do:

if (isset($_GET["test"])) {
   $var = $_GET["test"];
   $len = strlen($var);
}
else {
   $var = "";
   $len = 0;
}

PHP:

 

thanks

'isset' in 'if' condition worked

thanks

 

Notices are almost 100% useless, you can safely disable them.