in this page, the user must specify his username and his password, then it supports d

in this page, the user must specify his username and his password, then it supports diverse on 'login'. but there is a fault. sentence after the welcome, he said: "Undefined index: prenom, nompere, nom". Why?u can help me...

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 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<?php

session_start();

if(isset($_POST["nom"]))

{

$_session["nom"]=$_POST["nom"];

include("MySQLConnection.php");

$sql= "Select * FROM etudiante WHERE userName_etu=".$_POST['userNom']." and password_etu= MD5(".$_POST['pass'].")";

$reponse=mysql_query($sql);

if(mysql_num_rows($reponse) > 0)

{

 $d=mysql_fetch_array($reponse);

 $_session["Prenom"] = $d["prenom_etu"];

 $_session["Nom"] = $d["nom_etu"];

}

else

{

 echo ("error" . mysql_error()); 

}

mysql_close();

}

?>

<html>

<head>

<title>Sign In Reponse</title>

</head>

<body>

<p><strong>Welcome <?php echo($_SESSION["prenom"]. "" . $_SESSION["nompere"]. "" . $_SESSION["nom"]); ?></strong></p>

<p><script type="java/script"> alert ("What do want to do? please choose <br>

 <a href= "NewYear.php">Registration new year</a></br>

 <a href= "Note.php">Leaving the School</a></br>

 <a href= "Modifier.php">Modify personal information</a></br>

 <a href= "Note.php">See ur notes</a></br>);

</body>

</html>

Aug 21 '10 #1

Subscribe Post Reply

1306

Atli

5,058

Expert 4TB

If you want to manipulate a session variable, you need to use the $_SESSION array. It needs to be upper-case, not lower or mixed case. (That is, doing $_session or $_Session will NOT work. It has to be $_SESSION)

Also, you should verify that the session variables you use in you welcome message are actually set before using them, or you may end up with "Undefined index" warnings. Those warnings are shown when you try to print an index of an array that doesn't exist, so you need to make sure it does before using it.

For example:

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<?php

session_start();
 
if(!isset($_SESSION['name'])) {

    $name = "Some name to use when no name is set";

}

else {

    $name = $_SESSION['name'];

}

?>

<html>

<head>etc...

<body>

    <h1>Welcome, <?php echo $name; ?></h1>

</body>

</html>

Aug 22 '10 #2

Leen

thank u for ur help.
i used session in upper-case. and i simplified this page to the minimum, but now a new problem appeared:
he said: diagnose connection problems
why???
this is my new page:

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 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<?php

session_start();

include("MySQLConnection.php");

$sql= "Select nom_etu,prenom_etu,pere_nom_etu FROM etudiante WHERE userName_etu=".$_POST['userNom']." and password_etu= MD5(".$_POST['pass'].")";

$reponse=mysql_query($sql);

if(mysql_num_rows($reponse) < 0)

{

 echo ("error" . mysql_error()); 

}

mysql_close();

?>

<html>

<head>

<title>Sign In Reponse</title>

</head>

<body>

<p><strong>Welcome <?php echo($_SESSION["prenom_etu"]. "" . $_SESSION["pere_nom_etu"]. "" . $_SESSION["nom_etu"]); ?></strong></p>

<p><script type="java/script"> alert ("What do want to do? please choose <br>

 <a href= "NewYear.php">Registration new year</a></br>

 <a href= "Note.php">Leaving the School</a></br>

 <a href= "Modifier.php">Modify personal information</a></br>

 <a href= "Note.php">See ur notes</a></br>);

</body>

</html>

Aug 22 '10 #3

Atli

5,058

Expert 4TB

Where is that error coming from? It's not something PHP itself would say.

Also:

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if(mysql_num_rows($reponse) < 0)

This will never be true. mysql_num_rows always returns 0 or higher. (Or FALSE, but that's basically the same as 0)

P.S.
Please remember to use [code] tags when posting code!

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