please help me!

[nancynancy]

when i run my code i take this error:Undefined index: username in C:\xampp\htdocs\app\profil.php

my code is:

<?php

		$con = mysql_connect("localhost","root","");
		if (!$con)
		  {
		  die('Could not connect: ' . mysql_error());
		  }

		mysql_select_db("myapp", $con);
        $username = $_SESSION["USERNAME"];


		$sql = "SELECT * FROM kathigitis WHERE username='". $username."'";

		$result = mysql_query($sql);

	$row = mysql_fetch_array($result);
	echo("<li> ONOMA: " . $row["onoma"] . "</li></br>");
	echo("<li> &#917;&#928;&#921;&#920;&#917;&#932;&#927;:" . $row["epitheto"] . "</li></br>");
	echo("<li> email:". $row["email"]."</li></br>");





		mysql_close($con);

	?>

thanks

[nancynancy]

the problem is in line $username = $_SESSION["USERNAME"];

[bradgrafelman]

Where do you call [man]session_start/man?

EDIT: Welcome to PHPBuilder! When posting PHP code, please use the board's [noparse]

..

[/noparse] bbcode tags as they make your code much easier to read and analyze.

[dalecosp]

And set some credentials on your DB access 😉