57 lines
2.1 KiB
PHP
57 lines
2.1 KiB
PHP
<?php
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require('db.php');
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// the function which varifies a users credentials
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// against the database
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function login ()
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{
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session_start();
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if (isset($_REQUEST['username'])) {
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//Checking is user existing in the database or not
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global $con;
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$username = stripslashes($_REQUEST['username']);
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//escapes special characters in a string
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$username = mysqli_real_escape_string($con,$username);
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$password = stripslashes($_REQUEST['password']);
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$password = mysqli_real_escape_string($con,$password);
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$query = "SELECT * FROM users WHERE userLogin='$username'
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and userPass='$password'";
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$result = mysqli_query($con,$query) or die(mysqli_error());
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$rows = mysqli_num_rows($result);
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if ($rows==1) {
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$_SESSION['username'] = $username;
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// Redirect user to home.php
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header("Location: home.php");
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} else {
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echo "<h3>Username/password is incorrect.</h3>";
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}
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}
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}
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// A function to register a new user
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function register ()
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{
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if (isset($_REQUEST['username'])) {
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global $con;
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// removes backslashes
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$username = stripslashes($_REQUEST['username']);
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//escapes special characters in a string
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$username = mysqli_real_escape_string($con,$username);
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$email = stripslashes($_REQUEST['email']);
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$email = mysqli_real_escape_string($con,$email);
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$password = stripslashes($_REQUEST['password']);
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$password = mysqli_real_escape_string($con,$password);
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$query = "INSERT into users (userLogin, userPass, userEmail)
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VALUES ('$username', '$password', '$email')";
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$result = mysqli_query($con,$query);
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// checks if the username or email addresse is already taken
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if ($result) {
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echo "<div class='form'>
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<h3>You are registered successfully.</h3>
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<br/>Click here to <a href='index.php'>Login</a></div>";
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} elseif (mysqli_errno($con) == 1062) {
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echo "<h3>Username or Email already taken.</h3>";
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}
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}
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}
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?>
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