[SOLVED] Login not working

Ads · November 5, 2007

my Login pages logins no matter what i enter

Login.php

<!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=iso-8859-1" />
<title>Login</title>
<link href="style1.css" rel="stylesheet" type="text/css" />
</head>

<body>
<form method="post" action="loginck.php" target="_parent">
<p align="center">
<span class="style2">Enter Email:</span> <br>
  <input type="text" name="email">
  <br>
  <span class="style2">Enter Passowrd:</span><br>
  <input type="password" name="password">
  <br>
  <input name="Submit" type="submit" class="top" value="Submit">
    </p>
<p align="center"> </p>
<p align="center">
  </div>
      <strong>Messages:</strong>
</p>
</p>
    <div align="center">Working on</div>
    
    
</body>
</html>

loginck.php

<?
session_start();
?>
<?php
include "include/db.php";
?>
<!doctype html public "-//w3c//dtd html 3.2//en">

<html>

<head>
    <link href="style1.css" rel="stylesheet" type="text/css">
<title>(Type a title for your page here)</title>

</head>

<body>
<?
// convert username and password from _POST or _SESSION 
if($_POST['submit']){ 
  $_SESSION['email']=$_POST["email"]; 
  $_SESSION['password']=$_POST["password"]; 
   

} 

// query for a user/pass match 
$result=mysql_query("select * from players where email='" . $_SESSION['email'] . "' and password='" . $_SESSION['password'] . "'"); 
  
  // retrieve number of rows resulted 
$num=mysql_num_rows($result);  

// print login form and exit if failed. 
if($num < 1){ 
  echo "You are not authenticated.  Please login.<br><br> ";
   
  exit; 
} 
       print "<script>";
       print " self.location='main.php';"; // Comment this line if you don't want to redirect
         print "</script>"; 

?>

</body>

</html>

main.php

<?php
session_start();
?>
<?php
include "include/db.php";
?>
<html>
<head>
<title>Apples xD </title>
    <link href="style1.css" rel="stylesheet" type="text/css">
</head>
<body>

<?php
  $email = trim($_SESSION['email']);
  $sql = "SELECT username FROM players WHERE email = '$email'";
  if ($result = mysql_query($sql)) {
    if (mysql_num_rows($result)) {
      $row = mysql_fetch_assoc($result);
      echo $row['username'] . "<br />";
    } else {
      echo "No results found";
    }
  } else {
    echo "Query failed<br />" . mysql_error() . "<br />$sql";
  }

?>

</body>
</html>

poizn · November 5, 2007

You should read up on SQL injection and other php security related topics

http://www.ilovejackdaniels.com/php/writing-secure-php/

http://ocliteracy.com/techtips/sql-injection.html

Or just google SQL injections

Cheers

farkewie · November 5, 2007

this should do the same thing.


<?php
$email = trim($_SESSION['email']);
$sql = "SELECT username FROM players WHERE email='$email'";
$sql = mysql_query($sql);
$row = mysql_fetch_assoc($sql);
$email = $row['email'];

if (!isset($email))  {

echo "you are not allowed to acces this page";
exit;
}
?>

Ads · November 5, 2007

this should do the same thing.


<?php
$email = trim($_SESSION['email']);
$sql = "SELECT username FROM players WHERE email='$email'";
$sql = mysql_query($sql);
$row = mysql_fetch_assoc($sql);
$email = $row['email'];

if (!isset($email))  {

echo "you are not allowed to acces this page";
exit;
}
?>

only Problem now is i can't Login in at all.

rajivgonsalves · November 5, 2007

this

$email = $row['email'];

should be

$email = $row['username'];

and also check for the password in the query

SELECT username FROM players WHERE email='$email' and password='xxx'

Ads · November 5, 2007

this
$email = $row['email'];
should be
$email = $row['username'];
and also check for the password in the query
SELECT username FROM players WHERE email='$email' and password='xxx'

Fixes the Error, but Gives back Nothing

rajivgonsalves · November 5, 2007

you if statement should be

if (!isset($email))  {

echo "you are not allowed to acces this page";
exit;
}
else 
{
echo "logged in";
}

Ads · November 5, 2007

you if statement should be
if (!isset($email))  {

echo "you are not allowed to acces this page";
exit;
}
else 
{
echo "logged in";
}
I want it to echo the users name? if that is possible

rajivgonsalves · November 5, 2007

else 
{
echo "logged in as ".$email;
}

actually change the names of your variables they will become confusing after some time

<?php
$email = trim($_SESSION['email']);
$password = trim($_SESSION['password']);
$sql = "SELECT username FROM players WHERE email='$email' and password='$password'";
$sql = mysql_query($sql);
$row = mysql_fetch_assoc($sql);
$username = $row['username'];

if (!isset($username))  {

echo "you are not allowed to acces this page";
exit;
}
else 
{
    echo "Logged in as ".$username;
}
?>

farkewie · November 5, 2007

logincheck.php

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

$username = $_POST['username'];
$password = $_POST['password'];

$check = =mysql_query("select * from players where username='$username'");
$check = mysql_query($check);
$row = mysql_fetch_assoc($check);

$db_user = $row['username'];
$db_password = $row['password'];



if (!$db_user) {
$message = "<head><link href=\"styles.css\" rel=\stylesheet\" type=\"text/css\" /></head>
		   <p class=\"errortext\"><strong>$user_name</strong> is not in the database...</p>";
	  
	   

}
// give error if user exists but wrong password
	else if (($db_user)&& ($password !== $db_password)) {
		$message = "<head><link href=\"styles.css\" rel=\stylesheet\" type=\"text/css\" /></head>
					<p class=\"errortext\"> Your password is wrong...</p>";



	}
	else if (($db_user) && ($password == $db_password)){
setcookie ("username",$username,+3600);

				}
		?>

then in main.php

if (!isset($_COOKIE['username']))  {

echo "you are not allowed to acces this page";
exit;
}
else 
{
echo "logged in";
}

Ads · November 5, 2007

Warning: mysql_fetch_assoc(): supplied argument is not a valid MySQL result resource

useing that code above

farkewie · November 5, 2007

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

$username = $_POST['username'];
$password = $_POST['password'];

$check = mysql_query("select * from players where username='$username'");
$check = mysql_query($check);
$row = mysql_fetch_assoc($check);

$db_user = $row['username'];
$db_password = $row['password'];



if (!$db_user) {
$message = "<head><link href=\"styles.css\" rel=\stylesheet\" type=\"text/css\" /></head>
		   <p class=\"errortext\"><strong>$user_name</strong> is not in the database...</p>";
	  
	   

}
// give error if user exists but wrong password
	else if (($db_user)&& ($password !== $db_password)) {
		$message = "<head><link href=\"styles.css\" rel=\stylesheet\" type=\"text/css\" /></head>
					<p class=\"errortext\"> Your password is wrong...</p>";



	}
	else if (($db_user) && ($password == $db_password)){
setcookie ("username",$username,+3600);

				}
		?>

Ads · November 5, 2007

$row = mysql_fetch_assoc($check);

Thats where the error is

Warning: mysql_fetch_assoc(): supplied argument is not a valid MySQL result resource

adam291086 · November 5, 2007

change

$check = mysql_query("select * from players where username='$username'");
$check = mysql_query($check);
$row = mysql_fetch_assoc($check);

To this

$sql = mysql_query("select * from players where username='$username'");
$result = mysql_query($sql);
$row = mysql_fetch_assoc($result);

That should work

Ads · November 5, 2007

Still nothing sorry

Still getting the Erros

trq · November 5, 2007

This....

<?php

$check = mysql_query("select * from players where username='$username'");
$check = mysql_query($check);
$row = mysql_fetch_assoc($check);

?>

Should be....

<?php

$sql = "SELECT * FROM players WHERE username='$username'";
if ($result = mysql_query($sql)) {
  if (mysql_num_rows($result)) {
    // user is valid.
    // do login.
  } else {
    // username not found.
  }
} else {
  echo mysql_error();
}

?>

Ads · November 5, 2007

Cool loginck.php works, but now Main.php doesn;t, It says i am entering Incorrect Stuff

<?php
session_start();
?>
<?php
include "include/db.php";
?>
<html>
<head>
<title> </title>
    <link href="style1.css" rel="stylesheet" type="text/css">
</head>
<body>


<?php
$email = trim($_SESSION['email']);
$password = trim($_SESSION['password']);
$sql = "SELECT username FROM players WHERE email='$email' and password='$password'";
$sql = mysql_query($sql);
$row = mysql_fetch_assoc($sql);
$username = $row['username'];

if (!isset($_COOKIE['username']))  {

echo "you are not allowed to acces this page";
exit;
}
else 
{
echo "logged in";
}
?>


</body>
</html>

farkewie · November 5, 2007

$check = mysql_query($check)or die (mysql_error());

and for debug place this at top of all pages

<?php ini_set('error_reporting', E_ALL); ?>

Ads · November 5, 2007

Notice: Undefined index: email line 17

Notice: Undefined index: password line 18

Notice: Undefined variable: check line 23

Query was empty

farkewie · November 5, 2007

OK give these at try ..

Loginform.php


<!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=iso-8859-1" />
<title>Login</title>
<link href="style1.css" rel="stylesheet" type="text/css" />
</head>

<body>
<form method="post" action="loginck.php" target="_parent">
<p align="center">
<span class="style2">Enter Email:</span> <br>
  <input type="text" name="email" id="email">
  <br>
  <span class="style2">Enter Passowrd:</span><br>
  <input type="password" name="password">
  <br>
  <input name="Submit" type="submit" class="top" value="Submit">
    </p>
<p align="center"> </p>
<p align="center">
  </div>
      <strong>Messages:</strong>
</p>
</p>
    <div align="center">Working on</div>
    
    
</body>
</html>

loginck.php

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

$email = $_POST['email'];
$password = $_POST['password'];

$check = =mysql_query("select * from players where email='$email'");
$check = mysql_query($check);
$row = mysql_fetch_assoc($check);

$db_user = $row['email'];
$db_password = $row['password'];



if (!$db_user) {
$message = "<head><link href=\"styles.css\" rel=\stylesheet\" type=\"text/css\" /></head>
		   <p class=\"errortext\"><strong>$email</strong> is not in the database...</p>";
	  
	   

}
// give error if user exists but wrong password
	else if (($db_user)&& ($password !== $db_password)) {
		$message = "<head><link href=\"styles.css\" rel=\stylesheet\" type=\"text/css\" /></head>
					<p class=\"errortext\"> Your password is wrong...</p>";



	}
	else if (($db_user) && ($password == $db_password)){
setcookie ("email",$email,+3600);
header ("Location:main.php");

				}
		?>

main.php

<?php
$email = trim($_COOKIE['email']);
$password = trim($_SESSION['password']);
$sql = "SELECT username FROM players WHERE email='$email' and password='$password'";
$sql = mysql_query($sql);
$row = mysql_fetch_assoc($sql);
$username = $row['username'];

if (!isset($username))  {

echo "you are not allowed to acces this page";
exit;
}
else 
{
    echo "Logged in as ".$username;
}
?>

<!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>Untitled Document</title>
</head>

<body>

content here
</body>
</html>

trq · November 5, 2007

Why do you keep removing the if statements from the examples I post? Thay are there for a reason. To trap errors. Do you want this code to work properly into the future or just get some makeshift hack working?

farkewie · November 5, 2007

Sorry which ones did i remove?

i am not intending to i was just rying to get something working, i noticed the varibles were changed between pages.

ill take a look through the post too see what i changed and re post it. im not going to argue with you you hae WAY more stars than me...lol

Ads · November 6, 2007

Am still getting this Error:

Warning: mysql_fetch_assoc(): supplied argument is not a valid MySQL result resource

farkewie · November 6, 2007

on what page?

are you getting any other errors on he screen?

did you copy those pages exactly asi posted them or did you add/ change some stuff?

Im fairly new to php but this should just be a simplescript so please postall the text our of the browser when it displayed the error and ill take a look.

Ads · November 6, 2007

umm fixed that error, When I log in It Just Displays "you are not allowed to acces this page" On mina.php

And If i enter in the wrong info, loginck.php displays nothing.

and On Loginck.php i changed that 'header location' thingy to this

print "<script>";
print " self.location='main.php';"; 
print "</script>";

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[SOLVED] Login not working

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