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| 1 | <html> | |
| 2 | <head> | |
| 3 | <title>My first PHP website</title> | |
| 4 | </head> | |
| 5 | <body> | |
| 6 | <h2>Registration Page</h2> | |
| 7 | <a href="index.php">Click here to go back</a><br/><br/> | |
| 8 | <form action="register.php" method="post"> | |
| 9 | Enter Username: <input type="text" name="username" required="required"/> <br/> | |
| 10 | Enter Password: <input type="password" name="password" required="required" /> <br/> | |
| 11 | <input type="submit" value="Register"/> | |
| 12 | </form> | |
| 13 | </body> | |
| 14 | </html> | |
| 15 | ||
| 16 | <?php | |
| 17 | if($_SERVER["REQUEST_METHOD"] == "POST"){
| |
| 18 | $username = mysqli_real_escape_string($_POST['username']); | |
| 19 | $password = mysqli_real_escape_string($_POST['password']); | |
| 20 | $bool = true; | |
| 21 | $dbConnection = mysqli_connect("localhost", "root","") or die(mysqli_error()); //Connect to server
| |
| 22 | mysqli_select_db($dbConnection, "first_db") or die("Cannot connect to database"); //Connect to database
| |
| 23 | - | $query = mysqli_query($dbConnection, "Select * from users"); //Query the users table |
| 23 | + | $query = mysqli_query($dbConnection, "Select COUNT(*) count from users WHERE username = '$username'"); |
| 24 | - | while($row = mysqli_fetch_array($query)) //Display all rows from query |
| 24 | + | $result = mysqli_fetch_array($query); |
| 25 | if(!empty($result['count'])) {
| |
| 26 | - | $table_users = $row['username']; //The first username row is passed on to $table_users, and so on until the query is finished |
| 26 | + | $bool = false; // sets bool to false |
| 27 | - | if($username == $table_users) //Checks if there are any matching fields |
| 27 | + | Print '<script>alert("Username has been taken!");</script>'; //Prompts the user
|
| 28 | - | {
|
| 28 | + | |
| 29 | - | $bool = false; // sets bool to false |
| 29 | + | |
| 30 | - | Print '<script>alert("Username has been taken!");</script>'; //Prompts the user
|
| 30 | + | |
| 31 | - | Print '<script>window.location.assign("register.php");</script>'; //Redirects to register.php
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| 31 | + | |
| 32 | - | } |
| 32 | + | |
| 33 | Print '<script>alert("Successfully Registered!");</script>'; //Prompts the user
| |
| 34 | Print '<script>window.location.assign("register.php");</script>'; //Redirects to register.php
| |
| 35 | } | |
| 36 | } | |
| 37 | ?> |
