if you have shell access, please do the following
describe users; select * from users;
also, why are you using LIKE instead of =? use this instead:
$query = "SELECT * FROM users WHERE email = '".$username."'";
i would also suggest turning off register globals and using $_POST['username'] and not $username. (i'm assuming it's on given your code)
Jon
Aaron Todd wrote:
I am just starting out with PHP and I have created a simple login program that is supposed to check users input with a mysql database. I am doing 5 verifications before the program is completed...Check for the Submit button, check for a valid email address(which is the username), check for a valid password, check to see if the username exists in the database, and finally check to see if the password matches the database for the coresponding username. Currently you dont get access to a site you only get told what your password is in the database.
Everything is technically working, but its not perfect and I think I need some help. I have entered 2 records in the database for testing purposes. When I put in username1 and password1 it works. The program returns the coresponding password. When I change to username2 and still put in password1 it will return password1.
I have done some debuging and I am unsure of what is really happening. My code is below. Would anyone be able to tell me what I am doing wrong.
Thanks,
Aaron
<html> <body> <?php if ($submit) { //VALID USERNAME/EMAIL ADDRESS if (!ereg('^[-!#$%&\'*+\\./0-9=?A-Z^_`a-z{|}~]+'.'@'.'[!#$%&\'*+\\/0-9=?A-Z^_`a -z{|}`]+\.'.'[-!#$%&\'*+\\./0-9=?A-Z^_`a-z{|}~]+$', $username)) { $error = "You must enter a valid email address for your username.<br>"; echo "$error<br>"; } else { $db = mysql_connect("localhost", "username", "password"); mysql_select_db("database",$db); $query = "SELECT * FROM users WHERE email LIKE '".$username."'"; echo "$query<br>"; $result = mysql_query($query,$db); $num_rows = mysql_num_rows($result); echo "There are $num_rows records matching $username<br>"; //VALID PASSWORD echo "Entered User Name: $username<br>"; echo "Entered Password: $passw<br>"; if (strlen($passw) < 6 || !preg_match('/[a-z]/i', $passw) || !preg_match('/[0-9]/', $passw)) { $error = "Invalid Password. Must be greater than six characters containing at least one number.<br>"; echo "$error<br>"; } else { //USERNAME/EMAIL ADDRESS IN DATABASE if (!$num_rows){ $error = "Username was not found. Please Register."; echo "$error<br>"; die(mysql_error()); } else { //ENTERED PASSWORD IN DATABASE if (!$passw = mysql_result($result,0,"pass")){ $error = "Invalid Password.<br>"; echo "$error<br>"; } else { printf("Password is %s<br>\n", mysql_result($result,0,"pass")); } } } } } else {
?>
<form method="post" action="<?php echo $PHP_SELF?>">
User Name:<input type="Text" name="username"><br>
Password:<input type="Text" name="passw"><br>
<input type="Submit" name="submit" value="Enter information">
</form>
<?php
} // end if
?>
</body>
</html>
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