Simple user registration code in php using md5 encryption for password encryption.
<?php echo "<h1> Register</h1>"; $submit = $_POST['submit']; //form data $fullname = strip_tags($_POST['fullname']); $username = strtolowe(strip_tags($_POST['username '])); $password = strip_tags($_POST['password ']); $repeatpassword =strip_tags($_POST['repeatpassword ']); $date = date("y-m-d"); if($submit) { $connect = mysql_connect ("localhost","root",""); mysql_select_db("phplogin"); $namecheck = mysql_query("SELECT username FROM users WHERE username ='$username'"); $count = mysql_num_rows($namecheck); if($count!=0) { die("Username already taken!"); } // check for existance if($fullname && $username && $password && $repeatpassword) { if($password == $repeatpassword) { //chech char length of username and fullname if(strlen($username) >25 || strlen ($fullname)>25) { echo "Length of username or fullname is too long!"; } else if(strlen($password) >25 || strlen ($password)>6) { echo "Password must be between 6 and 25 characters"; } else { //encrypt password $password = md5($password); $repeatpassword = md5($repeatpassword); //open database $queryreg = mysql_query(" INSERT INTO user VALUES ('','$name','$username','$password','$data') "); die("You have been registerd! <a href = 'index.php'>Return to login page</a> "; } } else echo "Your passwords do not match!"; } else echo "Please fill in <b>all</b> fields!"; } ?> <html> <p> <form action='register.php' method='POST'> <table> <tr> <td>Your full name : </td> <td><input type='text' name='fullname' value='<?php echo $fullname; ?> '></td> </tr> <tr> <td>Choose a username : </td> <td><input type='text' name='username' value='<?php echo $username; ?> '></td> </tr> <tr> <td>Choose a password : </td> <td><input type='password' name='password'></td> </tr> <tr> <td>Repeat your password : </td> <td><input type='password' name='repeatpassword'></td> </tr> <p> <input type='submit' name='submit' value='Register'> </table> </form> </html>[AMAZONPRODUCTS asin=”1449392776″]
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