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Thread: [RESOLVED] retrieve username and password

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  1. #1
    Join Date
    Oct 2005
    Posts
    244

    resolved [RESOLVED] retrieve username and password

    the script to create the database+table+first user:
    PHP Code:
    <?php
    $database 
    "acemo";
    $first_user "username";
    $first_password "password";
    mysql_connect("localhost","root","") or 
           die(
    "<p>Mysql error when trying to connect to mysqlserver error is " mysql_error() . "</p>");
    echo 
    "<p>connected to mysql server</p>";
    $query "CREATE DATABASE $database";
    $result mysql_query($query) or die("<p>Mysql error when trying to create database is " mysql_error() . "</p>");
    echo 
    "<p>Database $database created</p>";
    $query "USE $database";
    $result mysql_query($query) or die("<p>Mysql error when trying to use database is " mysql_error() . "</p>");
    echo 
    "<p>Using database $database</p>";
    $query 'CREATE TABLE users('.
        
    'user_id INT NOT NULL AUTO_INCREMENT, '.
        
    'username varchar(30) NOT NULL, '.
        
    'password varchar(50) NOT NULL, '.
        
    'PRIMARY KEY(user_id))';
    $result mysql_query($query) or die("<p>Mysql error when trying to create table is " mysql_error() . "</p>");
    echo 
    "<p>Created table users</p>";
    $query "INSERT INTO users (username, password) VALUES('$first_user', '" sha1("$first_password") . "')";
    $result mysql_query($query) or die("<p>Mysql error when trying to create first user is " mysql_error() . "</p>");
    echo 
    "<p>Created first user with as username '$first_user' and as password '$first_password'</p>";
    echo 
    "<p><a href='../index.php'>Home</a></p>";
    ?>
    the table:
    Code:
    mysql> SELECT * FROM users;
    +---------+----------+------------------------------------------+
    | user_id | username | password                                 |
    +---------+----------+------------------------------------------+
    |       1 | username    | 5baa61e4c9b93f3f0682250b6cf8331b7ee68fd8 |
    +---------+----------+------------------------------------------+
    1 row in set (0.00 sec)
    the script to check the username and password:
    PHP Code:
        $query "SELECT * FROM users WHERE username=" $_POST['username'] . " AND " .
                
    "password=" sha1($_POST['password']);
        
    $result mysql_query($query) or die("ERROR: " mysql_error()); 
    the error:
    Code:
    ERROR: Unknown column '5baa61e4c9b93f3f0682250b6cf8331b7ee68fd8' in 'where clause'
    what am i doing wrong?

  2. #2
    Join Date
    Aug 2004
    Location
    Ankh-Morpork
    Posts
    22,335
    You need to quote the values:
    PHP Code:
     $query "SELECT * FROM users WHERE username='" $_POST['username'] . "' AND " .
                
    "password='" sha1($_POST['password']) ."'";
        
    $result mysql_query($query) or die("ERROR: " mysql_error()); 
    "Well done....Consciousness to sarcasm in five seconds!" ~ Terry Pratchett, Night Watch

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  3. #3
    Join Date
    Oct 2005
    Posts
    244
    thanks it works

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