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Is There Anything Wrong With This Script?


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Hi everyone. I'm having a bit of trouble with my registration script. When I go to my action.php file, I get these error:


Notice: Undefined index: uname1 in C:\xampp\htdocs\series\action.php on line 2


Notice: Undefined index: pword1 in C:\xampp\htdocs\series\action.php on line 3


But, When I test my script, Everything works fine.

I don't understand what's going on.

These are my two files:







<form action="action.php" method="post">

Username: <input type="text" name="uname1" />


Password: <input type="password" name="pword1" />

<input type="submit" value="Login" />









$username_1 = $_POST['uname1'];

$password_1 = $_POST['pword1'];

$con = mysql_connect("localhost", "root", "");

if (!$con)


die('Could not connect: '. mysql_error());



mysql_select_db("user1", $con);


mysql_query("INSERT INTO userlogin (username, password)

VALUES ('$username_1', '$password_1')");




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If you go to it directly, $username_1 and $password_1 will give that error because you are not submitting the form first and the $_POST variables are undefined. To get rid of the error, check that the form has been submitted first:


if(isset($_POST['submit'])) {
$username_1 = $_POST['uname1'];
$password_1 = $_POST['pword1'];

// add the rest of your code here



Also for this to work you will need to add name="submit" to your submit button

Edited by SocialCloud
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You really don't need to go to the bother of using a hidden checksum simply to prevent undefined index notices.


No, you don't. However either method will work, bit of a habit for myself to use checksums since they have other advantages as well. What we can both agree on here is that relying on a submit button value may cause problems in some browsers.

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