[SOLVED] How to check for empty querystring in PHP ?

[lonewolf217]

I have a php page that displays data from a database.  there is an option on the page to delete a row.  If the user chooses to delete the row, he goes to the delete.php page which will process the delete, then redirect back to the original page.

 

My issue is with a piece of code on this main page where I do this

$query = $_GET['name'];
if(strlen($query) != 0) {
$query = str_replace(' ','%20',$query);
echo "<br>The file " . $query . " was successfully uploaded.<br><br>";
}

 

if i am loading this page without having deleted the file, the $_GET should be empty, but I am getting an error

 

PHP Notice: Undefined index: name in view.php

 

how do I change it so that if the querystring really is empty, it will not do anything here and continue with the rest of the code

[trq]

if(isset($_GET['name']) {
  $query = $_GET['name'];
  $query = str_replace(' ','%20',$query);
  echo "<br>The file " . $query . " was successfully uploaded.<br><br>";
}

[lonewolf217]

thanks again!