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POPHP check password script wont work for more than one user
 

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  1. POPHP check password script wont work for more than one user
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    <p>I am trying to create a simple login credentials checker (with session variables).</p> <p>this is what i have so far:</p> <pre><code>&lt;?php include("dbconnect.php"); $u_name = mysql_real_escape_string($_POST['uname']); $p_word = mysql_real_escape_string($_POST['pword']); # *** querying all records *** $query = mysql_query("SELECT valid_username, valid_password FROM notes_users"); while($rst = mysql_fetch_array($query)) { //echo $rst[valid_username] . ", "; //echo $u_name . " || "; //echo ($rst[valid_username] == $u_name) . " || "; //echo $rst[valid_password] . ", "; //echo $p_word . " || "; //echo ($rst[valid_password] == $p_word) . " || "; //echo (($rst[valid_username] == $u_name) AND ($rst[valid_password] == $p_word)); //echo "&lt;br/&gt;"; if (($rst[valid_username] == $u_name) AND ($rst[valid_password] == $p_word)) { session_start(); $_SESSION['login'] = "1"; header('Location: main.php') ; } else { session_start(); $_SESSION['login'] = ''; header('Location: badlogin.php') ; } } ?&gt; </code></pre> <p>here is the issue: If the MySQL table has more than one user in it's list, the check breaks. only the <strong>last-entered user in the table</strong> has access granted. anyone above the last user entered gets bumped to the incorrect login screen- even when the credentials are correct. why is this happening? can anyone suggest a code fix or better code to implement this login check?</p> <p>edit: the comment code tests to see if the credentials supplied match those on record. that part of the script works fine.</p> <p>problem solved! thank you all. for anyone who sees this in the future, definitely encrypt your passwords, mine are plain text because this is a local test application and wont even see an upload to the net.</p>
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    1. CODon't store passwords in plain text.
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    2. COquery using the username. the database is optimised precisely for that sort of thing - use it!
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