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sql error please help
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Join Date: Nov 2007
Posts: 227
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i just downloaded a login script and the code below is the php backend for the login. It is originally using md5 encryption and decryption for the password. For some reason I want to manage the password without encryption for now. my database has a member with login name and password. please see the line indicated with " ***" it keep complaining "databaseQuery failed"
I really have no more idea what could be wrong with that line of code, please help me. Thanks.
I really have no more idea what could be wrong with that line of code, please help me. Thanks.
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<?php //Start session session_start(); //Include database connection details require_once('config.php'); //Array to store validation errors $errmsg_arr = array(); //Validation error flag $errflag = false; //Connect to mysql server $link = mysql_connect(DB_HOST, DB_USER, DB_PASSWORD); if(!$link) { die('Failed to connect to server: ' . mysql_error()); } else{echo" connection is good";} //Select database $db = mysql_select_db(DB_DATABASE); if(!$db) { die("Unable to select database"); } else{echo "connected to database";} //Function to sanitize values received from the form. Prevents SQL injection function clean($str) { $str = @trim($str); //get_magic_quotes_gpc returns 0 if off, 1 otherwise if(get_magic_quotes_gpc()) { $str = stripslashes($str); } return mysql_real_escape_string($str); } //Sanitize the POST values $login = clean($_POST['login']); $password = clean($_POST['password']); //Input Validations if($login == '') { $errmsg_arr[] = 'Login ID missing'; $errflag = true; } if($password == '') { $errmsg_arr[] = 'Password missing'; $errflag = true; } //If there are input validations, redirect back to the login form if($errflag) { $_SESSION['ERRMSG_ARR'] = $errmsg_arr; session_write_close(); header("location: login-failed.php"); exit(); } *************** error below ***************** //Create query $qry="SELECT * FROM members WHERE login='$login' AND passwd='$password' "; /*** this is the original but i don't need md5 so i modified it to be the above one*** / //$qry="SELECT * FROM members WHERE login='$login' AND passwd='".md5($_POST['password'])."'"; ************ end error ************************ $result=mysql_query($qry); //Check whether the query was successful or not if($result) { if(mysql_num_rows($result) == 1) { //Login Successful session_regenerate_id(); $member = mysql_fetch_assoc($result); $_SESSION['SESS_MEMBER_ID'] = $member['member_id']; $_SESSION['SESS_FIRST_NAME'] = $member['firstname']; $_SESSION['SESS_LAST_NAME'] = $member['lastname']; session_write_close(); header("location: member-index.php"); exit(); }else { //Login failed header("location: login-failed.php"); exit(); } }else { die("Query failed"); } ?>
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Join Date: Nov 2007
Posts: 227
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people commented that the codes are working. however in my case, it is not working. i tested it that it is connected to the database successfully. and that line of select statement looks right to me.
actually i think everything else is working (when i left both login and password blank it would send me to the login-fail.php page as supposed to) it looks like it is just that line of query got some issue.
thanks
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