Writing a condition for a variable which stores text

[nitz06]

I have a form for registering. Am trying to prevent the person from entering too much of text for username and password but getting an error.

my code is:

$uLength = strlen($regusername);
$pLength = strlen($regpassword);
if ($uLength >= 7 && $uLength <= 20)
	{
	$errorMessage = "";
	}
else 
	{
	$errorMessage = $errorMessage."Username must be between 7 and 20 characters"."<br/>";
	}

if ($pLength >= 6 && $pLength <= 15)
	{
	$errorMessage = "";
	}
else 
	{
	$errorMessage = $errorMessage."Password must be between 6 and 15 characters"."<br/>";
	}

am getting an error on this line saying undeclared variable...

$errorMessage = $errorMessage." Username must be between 7 and 20 characters"."<b r/>";


Can you please help me out? Will be very thankful :)

[Rabbit]

Please use code tags when posting code.

It's a fairly clear error message. You need to declare the variable before trying to use it.

[nitz06]

how do I declare it? because after this code am using it in a condition like if $errorMessage is blank then do this or else this. But am confused on how to declare the variable "$errorMessage" . I looked for it on the net but got more confused as to different answers. Please help me :)

[Dormilich]

Am trying to prevent the person from entering too much of text for username and password

use the HTML attribute maxlength.

[nitz06]

thanks for the replies... my code works now but I used some other codes.. neway thanks