help with login page

digital_plunder

when i try to access this login page..an empty page open...please help with this coding



<!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">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Latest</title>
</head>

<body>

<?php
include("db.php");

if (isset($_POST["submit"]))
{
$username=$_POST["username"];
$password=$_POST["password"];
$query="select * from latest where username='$username' && password='$password'";
$query1=mysql_query($query);
if(mysql_num_rows($query1)>0)

{?>

<font color="#FF0000" size="+4"><b>
<?php  

 echo "welcome";
 echo ($username);

}
else 
{

?>


<center>
<table align="center" border="2">
<form enctype="multipart/form-data" action="<?php $_SERVER['PHP_SELF']  ?>" method="get">
<tr><td></td></tr>
<tr><td>Enter Username</td>
<td><input type="text" name="username" />
</td></tr>
<tr><td>Enter Password</td>
<td><input type="password" name="password" /></td>
</tr>
<tr><td>Submit</td><td><input type="submit" value="submit" name="submit"/></td></tr>
</form>
<?php } } ?>
</table>

</center>
</body>
</html>

bradgrafelman

Look at the logic of your script... this:

<center> 
<table align="center" border="2"> 
<form enctype="multipart/form-data" action="<?php $_SERVER['PHP_SELF']  ?>" method="get"> 
<tr><td></td></tr> 
<tr><td>Enter Username</td> 
<td><input type="text" name="username" /> 
</td></tr> 
<tr><td>Enter Password</td> 
<td><input type="password" name="password" /></td> 
</tr> 
<tr><td>Submit</td><td><input type="submit" value="submit" name="submit"/></td></tr> 
</form>

will only be displayed if $_POST["submit"] is set.

digital_plunder

bradgrafelman;10989396 wrote:

Look at the logic of your script... this:

<center> 
<table align="center" border="2"> 
<form enctype="multipart/form-data" action="<?php $_SERVER['PHP_SELF']  ?>" method="get"> 
<tr><td></td></tr> 
<tr><td>Enter Username</td> 
<td><input type="text" name="username" /> 
</td></tr> 
<tr><td>Enter Password</td> 
<td><input type="password" name="password" /></td> 
</tr> 
<tr><td>Submit</td><td><input type="submit" value="submit" name="submit"/></td></tr> 
</form>

will only be displayed if $_POST["submit"] is set.

Then what should be the exact code for login page?

bradgrafelman

digital_plunder;10989397 wrote:
Then what should be the exact code for login page?

Whatever you want it to be (it's not my login page, after all).

However, I would guess that the HTML for displaying the form should go in an 'else' branch that matches up with the first if() statement:

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

(in other words, if the POST variable is set, do the processing; if it isn't set, display the form).

digital_plunder

thx...i have improved my coding little bit...but again m getting error...can someone resolve it please?

<!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">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Latest</title>
</head>

<body>

<?php
include("db.php");

if(isset($_POST["submit"]))
{
$username=$_POST["username"];
$password=$_POST["password"];
$query="select * from latest where username='$username' && password='$password'";
$query1=mysql_query($query);
if(mysql_num_rows($query1)>0)

{?>

<font color="#FF0000" size="+4"><b>
<?php

echo "welcome "."$username";
  exit;  
	}
	else
		{
			$msg="Invalid Username or Password";		
		}

}

 ?>
<table align="center" border="2">
<form enctype="multipart/form-data" action="login.php" method="post">
<tr><td> <?php echo($msg);?></td></tr>
<tr><td>Enter Username</td>
<td><input type="text" name="username" />
</td></tr>
<tr><td>Enter Password</td>
<td><input type="password" name="password" /></td>
</tr>
<tr><td>Submit</td><td><input type="submit" value="submit" name="submit"/></td></tr>
</form>

</table>

</center>
</body>
</html>[/QUOTE]

digital_plunder

I m getting error on 39 line in improved coding...please help....

johanafm

What line is line 39, and what error do you get?

digital_plunder

Geting error on line 39, that undefined function $msg...

 <!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">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Latest</title>
</head>

<body>

<?php
include("db.php");

if(isset($_POST["submit"]))
{
$username=$_POST["username"];
$password=$_POST["password"];
$query="select * from latest where username='$username' && password='$password'";
$query1=mysql_query($query);
if(mysql_num_rows($query1)>0)

{?>

<font color="#FF0000" size="+4"><b>
<?php

echo "welcome "."$username";
exit; 
}
else
{
$msg="Invalid Username or Password";	
}

}

?>
<table align="center" border="2">
<form enctype="multipart/form-data" action="login.php" method="post">
<tr><td> <?php echo($msg);?></td></tr>
<tr><td>Enter Username</td>
<td><input type="text" name="username" />
</td></tr>
<tr><td>Enter Password</td>
<td><input type="password" name="password" /></td>
</tr>
<tr><td>Submit</td><td><input type="submit" value="submit" name="submit"/></td></tr>
</form>

</table>

</center>
</body>
</html>

dagon

it's not an error its a notice that $msg is not set, you can just set it to blank before the check that would populate it if there is an error. also the brackets are optional are general not used for echo (it is a language construct). also please learn css, the use of font is depreciated.

digital_plunder

Ok thx a lot bro...yes now m using css also...