User Login on Website

I am also interested in adding this feature to my sites. If you find anything, please let me know.

Thanks

So far, i have been able to create a user from outside the wordpress directory, on my own webapp. However having trouble displaying a logged in user, ill post that in another thread. THis is how I did account creation, however you’ll have to modify a bunch of it and I did not include functions from other files. Hope it helps point you in the right direction.

You’ll need to create 2 pages for account creation.

register.php – with a submission form, ive used JQuery for Ajax, so it may look foreign to some.

<?
	include "../common/header.php";
?>

	<div class="fitted_container">
		<form id="form_register">
			<table align=center>
				<tr><td><p>Username</p></td></tr>
				<tr><td><input type="text" id="username"></td></tr>
				<tr><td><p>Email</p></td></tr>
				<tr><td><input type="text" id="email"></td></tr>
				<tr><td><input type="button" onmousedown="javascript:register()" value="Register"></td></tr>
			</table>
		</form>
		<p id="response_text"></p>
	</div>
	<script language="javascript">
		function register() {

			// TODO: Client Side Validation

			// Appears Okay, Submit
			var form = $("#form_register");
			$("#response_text").load("register_act.php",
				{
					username: $("#username").val(),
					email: $("#email").val()
				}, function() {
				}
			);
		}
	</script>
<?
	include "../common/footer.php";
?>

register_act.php – the form elements are passed to this, this is the tough part.

I basically went through the process WordPress used to do this, so alot of the code comes from there. This will not work with a copy and paste, you need to use your own connection handler to the database and define some of the functions that I modified from wordpress.
Within register_act.php

<?
	/** Make sure that the WordPress bootstrap has ran before continuing. */
        // you'll most likely have to change this to your own blog directory.
	require('../blog/wp-load.php');

	$user_email = $_POST["email"];
	$user_login = $_POST["username"];
	$nicename = strtolower($user_login);
	$user_pass = wp_generate_password();
	$hashed_user_pass = wp_hash_password($user_pass);

        // this creates a connection to my database
	$conn = new GTConnection("wrdp1");

	/* Server side Validation - if there is an error, printing will show the error on the page. I was using ajax to run this script, and when there is an error, it gets put into a container... So the user never leaves the register.php page upon error.*/
	if ( $user_login == '' ) {
		print '<strong>ERROR</strong>: Please enter a username.';
		return;
	}
	elseif ( !gt_validate_username( $user_login ) ) {
		print '<strong>ERROR</strong>: This username is invalid.  Please enter a valid username.';
		return;
	} elseif ( gt_username_exists( $user_login ) ) {
		print '<strong>ERROR</strong>: This username is already registered, please choose another one.';
		return;
	}

	// Check the e-mail address
	if ($user_email == '') {
		print '<strong>ERROR</strong>: Please type your e-mail address.';
		return;
	} elseif ( !is_email( $user_email ) ) {
		print '<strong>ERROR</strong>: The email address isn’t correct.';
		return;
	} elseif ( gt_email_exists( $user_email ) ) {
		print '<strong>ERROR</strong>: This email is already registered, please choose another one.';
		return;
	}

	$result = mysql_query("

		INSERT INTO  <code>wrdp1</code>.<code>wp_users</code> (
		<code>ID</code>,
		<code>user_login</code>,
		<code>user_pass</code>,
		<code>user_nicename</code>,
		<code>user_email</code>,
		<code>display_name</code>,
		<code>user_registered</code>
		)
		VALUES (
			NULL,
			'$user_login',
			'$hashed_user_pass',
			'$nicename',
			'$user_email',
			'$user_login',
			now()
		)
	");

	if (!$result) {
		die('Invalid query: ' . mysql_error());
	}
	else {

		$user_id = mysql_insert_id($conn->link());

		if ( !$user_id ) {
			print '<strong>ERROR</strong>: Couldn’t register you... please contact the <a href="mailto:[email protected]">webmaster</a> !';
			//$errors->add('registerfail', sprintf(__('<strong>ERROR</strong>: Couldn’t register you... please contact the <a href="mailto:%s">webmaster</a> !'), get_option('admin_email')));
			return;
		}

		$user = new WP_User($user_id);
		$user->set_role(get_option('default_role'));
		//$user->getUserById($user_id);

		//$user_login = stripslashes($user->user_login());
		//$user_email = stripslashes($user->user_email());

		$message  = 'New user registration at MySite ' . "\r\n\r\n";
		$message .= 'Username: ' . $user_login . "\r\n\r\n";
		$message .= 'E-mail: ' . $user_email . "\r\n";
		$message .= 'Password: ' . $user_pass . "\r\n";

		wp_mail('[email protected]', 'New User Registration @ MySite', $message);

		if ( empty($user_pass) ) {
			print "password is blank";
			return;
		}

		$message  = 'Username: ' . $user_login . "\r\n";
		$message .= 'Password: ' . $user_pass . "\r\n";
		$message .= "https://www.mysite.ca/login.php" . "\r\n";

		wp_mail($user_email, '[MySite] Your username and password', $message);

	}

	$conn->close();
?>