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  #1  
Old 19-Aug-2008, 12:11
oggie oggie is offline
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Undefined variable: message view details....

Hi, This is what I am getting when submitting the details.

Notice: Undefined variable: message in /home/ca5iog/public_html/view-student-details.php on line 57

PHP Code:

<?php 
session_start();
//start session
$getType = 'sup';
//set user type and run check login function
//require ('check-login.php');
 
if (isset($_POST['submit'])) {
// Handle the form once it has been submitted
    $message = NULL;
//Validate cohort input
if ($_POST['programmeleader'] == "Select userID") {
    $message .='<br />You did not select a programme leader<br />';
    } 

if ($message == NULL) {
    //Start session and set session variables to pass to next page for inputting to database
    $_SESSION['programmeleader'] = $_POST['userID'];
    
    header ("Location: view-student-details2.php");
    exit();//exits page and redirects to page above
    }
}
?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html" />
<meta name="author" content="Ian Oglesby" />
<title>Project Monitoring System</title>
<link href="stylesheet.css" rel="stylesheet" type="text/css" />
</head>

<body>
<div id="container">
<div id="title">
<h1>Project Management System</h1>
</div>
<div id="nav">
~ <a href="/">Home</a> <br />  
~ <a href="edit-password.php">Edit Password</a> <br />
~ <a href="edit-email.php">Edit Email Address</a> <br />
~ <a href="view-programmeleaders-details.php">Programme Leaders Details</a> <br />  
~ <a href="email-programmeleaders.php">Email Programme Leaders</a> <br />

<br /> 
~ <a href="/" style="clear:none" accesskey="l">Logout <img src="logout.gif" alt="Logout" width="32" height="32" align="middle"/> </a> <br /><br />
</map>
</div>
<div id="mainContent">
    <h2>View Programme Leaders Details</h2>
   <div align="center">
    <br />
    <?php
//display error message if there is one 
if ($message)    {
    echo "<p>$message</p>";  [color="Red"]line 57, this is where it goes wrong any help please, thanks.[/color]
    }
?>
    
      <form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post" enctype="multipart/form-data" name="SelectProgramLeader Form" title="Select Programme Leader Form">
       <?php //connect to database
require_once('mysql-connect.php');
$userID = $_SESSION['userID'];
$query = "SELECT userID FROM programmeleader WHERE userID = '$userID'";
$result = @mysql_query ($query);

if ($result)
{    
$pulldown = '<option>Select Programme Leader</option>';
while ($row=mysql_fetch_array($result, MYSQL_ASSOC)) {
//put programme leaders into variable
$pulldown .="<option value=\"{$row['UserID']}\">{$row['UserID']}</option>\n";
}
}
?>
        <p>Programme Leader: <label for="programme leader">
          <select name="programme leader" alt="Select Programme Leader">
            <?php //populate list
            echo $pulldown;?> 
          </select></label>
        </p>
        <input type="submit" name="submit" value="submit" alt="Submit Button" />
    </form>
      <br />
</div>
</div>
</div>
</body>
</html>


thanks for the help

Ian
Last edited by LuciWiz : 20-Aug-2008 at 05:30. Reason: Please insert your Php code between [php] & [/php] tags
  #2  
Old 19-Aug-2008, 22:01
Howard_L Howard_L is offline
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Join Date: Apr 2007
Location: Maryland/PA, USA
Posts: 802
Howard_L is a jewel in the roughHoward_L is a jewel in the roughHoward_L is a jewel in the rough

Re: undefined variable: message view details....

The error as you posted places $message as suspect... not defined? hmmm...well where is that supposed to be done?
I look at the declaration and then trace down to where it is given another value which looks questionable.
So I whip out the cli to test the line:
Code:
$ php -a
Interactive mode enabled

<?php

# ...in your script you have:
$message .='<br />You did not select a programme leader<br />';

Notice: Undefined variable: message in /home/hlenderk/php/- on line 4

# I try it like this:
$message = '<br />You did not select a programme leader<br />';

#so far so good... now this:
echo $message;
<br />You did not select a programme leader<br />

# so there's that problem solved, just a typo.
<ctrl-d to exit cli> (or ctrl-x in windows?)

# another thing... the echo line should be more like this:
echo "<p>". $message ."</p>";

The cli is pretty handy. You can also run a script on the command line. 'man php' for info...
One other thing. You can use javascript to verfy user input before a form is submitted: w3schools.com/js/js_form_validation.asp
Last edited by Howard_L : 19-Aug-2008 at 23:10.
  #3  
Old 20-Aug-2008, 03:55
oggie oggie is offline
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Re: undefined variable: message view details....

hi Howard,

thanks for your hint. I have loooked over at what you saod and have changed it. But I am still getting

line 57 Notice: Undefined variable: message in /home/ca5iog/public_html/view-student-details.php on line 57

and now line 65 Notice: Undefined index: userID in /home/ca5iog/public_html/view-student-details.php on line 65

I am still having the same trouble with line 57 even after the change and now line 65.... Can you have a look and see where I am going wrong....

Thanks for the help

Ian

here is the code
PHP Code:

<?php 
session_start();
//start session
$getType = 'sup';
//set user type and run check login function
//require ('check-login.php');
 
if (isset($_POST['submit'])) {
// Handle the form once it has been submitted
    $message = NULL;
//Validate cohort input
if ($_POST['programmeleader'] == "Select userID") {
    $message ='<br />You did not select a programme leader<br />';
    } 

if ($message == NULL) {
    //Start session and set session variables to pass to next page for inputting to database
    $_SESSION['programmeleader'] = $_POST['userID'];
    
    header ("Location: view-student-details2.php");
    exit();//exits page and redirects to page above
    }
}
?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html" />
<meta name="author" content="Ian Oglesby" />
<title>Project Monitoring System</title>
<link href="stylesheet.css" rel="stylesheet" type="text/css" />
</head>

<body>
<div id="container">
<div id="title">
<h1>Project Management System</h1>
</div>
<div id="nav">
~ <a href="/">Home</a> <br />  
~ <a href="edit-password.php">Edit Password</a> <br />
~ <a href="edit-email.php">Edit Email Address</a> <br />
~ <a href="view-programmeleaders-details.php">Programme Leaders Details</a> <br />  
~ <a href="email-programmeleaders.php">Email Programme Leaders</a> <br />

<br /> 
~ <a href="/" style="clear:none" accesskey="l">Logout <img src="logout.gif" alt="Logout" width="32" height="32" align="middle"/> </a> <br /><br />
</map>
</div>
<div id="mainContent">
    <h2>View Programme Leaders Details</h2>
   <div align="center">
    <br />
    <?php
//display error message if there is one 
if ($message)    {
    echo "<p>". $message ."</p>"; [color="Red"]line 57[/color]
    }
?>
    
      <form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post" enctype="multipart/form-data" name="SelectProgramLeader Form" title="Select Programme Leader Form">
       <?php //connect to database
require_once('mysql-connect.php');
$programmeleader = $_SESSION['userID']; [color="red"]line 65[/color]
$query = "SELECT userID FROM programmeleader WHERE userID = '$programmeleader'";
$result = @mysql_query ($query);

if ($result)
{    
$pulldown = '<option>Select Programme Leader</option>';
while ($row=mysql_fetch_array($result, MYSQL_ASSOC)) {
//put programme leaders into variable
$pulldown .="<option value=\"{$row['userID']}\">{$row['userID']}</option>\n";
}
}
?>
        <p>Programme Leader: <label for="programme leader">
          <select name="programme leader" alt="Select Programme Leader">
            <?php //populate list
            echo $pulldown;?> 
          </select></label>
        </p>
        <input type="submit" name="submit" value="submit" alt="Submit Button" />
    </form>
      <br />
</div>
</div>
</div>
</body>
</html>
Last edited by LuciWiz : 20-Aug-2008 at 05:31. Reason: Please insert your Php code between [php] & [/php] tags
  #4  
Old 20-Aug-2008, 03:59
oggie oggie is offline
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Location: tattershall, UK
Posts: 28
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Question

Re: undefined variable: message view details....

Hi Howard,

You can look at my website at osiris.sunderland.ac.uk/~ca5iog/view-student-details.php

Ian


Quote:
Originally Posted by Howard_L
The error as you posted places $message as suspect... not defined? hmmm...well where is that supposed to be done?
I look at the declaration and then trace down to where it is given another value which looks questionable.
So I whip out the cli to test the line:
Code:
$ php -a
Interactive mode enabled

<?php

# ...in your script you have:
$message .='<br />You did not select a programme leader<br />';

Notice: Undefined variable: message in /home/hlenderk/php/- on line 4

# I try it like this:
$message = '<br />You did not select a programme leader<br />';

#so far so good... now this:
echo $message;
<br />You did not select a programme leader<br />

# so there's that problem solved, just a typo.
<ctrl-d to exit cli> (or ctrl-x in windows?)

# another thing... the echo line should be more like this:
echo "<p>". $message ."</p>";

The cli is pretty handy. You can also run a script on the command line. 'man php' for info...
One other thing. You can use javascript to verfy user input before a form is submitted: www.w3schools.com
  #5  
Old 20-Aug-2008, 09:01
Howard_L Howard_L is offline
Regular Member
  
Join Date: Apr 2007
Location: Maryland/PA, USA
Posts: 802
Howard_L is a jewel in the roughHoward_L is a jewel in the roughHoward_L is a jewel in the rough

Re: undefined variable: message view details....

Disclaimer: first I must state that I am new to .php , But I'll try to help.
Ok so the problem occurs at the initial loading of the 'view-student-details.php' :
Notice: Undefined variable: message in /home/ca5iog/public_html/view-student-details.php on line 57

I note that in last post above line 57 is this:
if($message) {
echo "<p>". $message ."</p>"; // *** and this is at line 58

Anyhow, so follow the logic trail of $messsage. Start at the top of the source: view-student-details.php and follow it from there.
PHP Code:

//The first occurance is:
if (isset($_POST['submit'])) {    $message = NULL;    
// the second is:
if ($_POST['programmeleader'] == "Select userID") {
    $message ='<br />You did not select a programme leader<br />';
// and the third is:
if ($message == NULL) {

I don't think you will have any '_POST' values at the first load,
so both the first and second would not be true so nothing would be assigned to $message,
not even NULL...
You can test whether any of those tests are true by simply placing an echo statement in there.
You could also try to print $message anywhere and compare to what you would 'expect' it to be :
PHP Code:

if ($_POST['programmeleader'] == "Select userID") {
    echo "Dude, I'm Here";
    $message ='<br />You did not select a programme leader<br />';
    //or maybe
    echo "TESTING: ". $message ;...
Try that and see how far you can get.
btw, I like the simplicity of your page... Nice quick load! ...gotta go....
  #6  
Old 25-Aug-2008, 15:11
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freehen freehen is offline
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Location: India
Posts: 5
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Re: undefined variable: message view details....

Quote:
Originally Posted by Howard_L
Disclaimer: first I must state that I am new to .php , But I'll try to help.
Ok so the problem occurs at the initial loading of the 'view-student-details.php' :
Notice: Undefined variable: message in /home/ca5iog/public_html/view-student-details.php on line 57

I note that in last post above line 57 is this:
if($message) {
echo "<p>". $message ."</p>"; // *** and this is at line 58

Anyhow, so follow the logic trail of $messsage. Start at the top of the source: view-student-details.php and follow it from there.
PHP Code:

//The first occurance is:
if (isset($_POST['submit'])) {    $message = NULL;    
// the second is:
if ($_POST['programmeleader'] == "Select userID") {
    $message ='<br />You did not select a programme leader<br />';
// and the third is:
if ($message == NULL) {

I don't think you will have any '_POST' values at the first load,
so both the first and second would not be true so nothing would be assigned to $message,
not even NULL...
You can test whether any of those tests are true by simply placing an echo statement in there.
You could also try to print $message anywhere and compare to what you would 'expect' it to be :
PHP Code:

if ($_POST['programmeleader'] == "Select userID") {
    echo "Dude, I'm Here";
    $message ='<br />You did not select a programme leader<br />';
    //or maybe
    echo "TESTING: ". $message ;...
Try that and see how far you can get.
btw, I like the simplicity of your page... Nice quick load! ...gotta go....
Going by the discussion quoted above you can use ISSET() to check if the variable is set.
 
 
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