Adding a Login/Register Modal in Your Plugin

Posted on 16th June 2023

As a WordPress plugin developer, you may be asked to add a login or register modal to your plugin. This is a common request for plugins that have membership features. In this article, we will show you how to add a login and register modal to your WordPress plugin.

Why Add a Login Modal?

There are two main reasons why you would want to add a login modal to your plugin.

1. The first reason is to allow users to login without leaving the page they are on. This is especially important if you have a membership site or an eCommerce store.

2. The second reason is to increase the security of your plugin. By adding a login modal, you can make sure that only logged in users can access certain features of your plugin.

How to Add a Login Modal in WordPress

Adding a login modal in WordPress is fairly easy. You will need to use the WordPress API function wp_login_form(). This function will output the default WordPress login form.

Here is an example of how you can use wp_login_form():

// Output the login form
echo wp_login_form(
	array(
		'echo'           => false,
		'redirect'       => site_url( $_SERVER['REQUEST_URI'] ),
		'form_id'        => 'loginform',
		'label_username' => __( 'Username' ),
		'label_password' => __( 'Password' ),
		'label_remember' => __( 'Remember Me' ),
		'label_log_in'   => __( 'Log In' ),
		'id_username'    => 'user_login',
		'id_password'    => 'user_pass',
		'id_remember'    => 'rememberme',
		'id_submit'      => 'wp-submit',
		'remember'       => true,
		'value_username' => '',
		'value_remember' => false
	)
);

You can learn more about the wp_login_form() function in the WordPress Codex.

If you want to style the login form, then you will need to target the form elements using CSS.

How to Add a Register Modal in WordPress

Adding a register modal in WordPress is a bit more complicated than adding a login modal. This is because the default WordPress wp_register_form() function does not exist.

You will need to create your own custom registration form and process the registration data using the register_new_user() function.

Here is an example of how you can create a custom registration form:

// Output the registration form
echo '<form id="registerform" action="' . esc_url( $_SERVER['REQUEST_URI'] ) . '" method="post">';

// Get the first name field
echo '<p>' .
'<label for="first_name">' . __( 'First Name', 'mydomain' ) . '</label>' .
'<input type="text" name="first_name" id="first_name" class="input" value="' . ( isset( $_POST['first_name'] ) ? esc_attr( $_POST['first_name'] ) : '' ) . '" size="25" />' .
'</p>';

// Get the last name field
echo '<p>' .
'<label for="last_name">' . __( 'Last Name', 'mydomain' ) . '</label>' .
'<input type="text" name="last_name" id="last_name" class="input" value="' . ( isset( $_POST['last_name'] ) ? esc_attr( $_POST['last_name'] ) : '' ) . '" size="25" />' .
'</p>';

// Get the email address field
echo '<p>' .
'<label for="email">' . __( 'Email Address', 'mydomain' ) . '</label>' .
'<input type="text" name="email" id="email" class="input" value="' . ( isset( $_POST['email'] ) ? esc_attr( $_POST['email'] ) : '' ) . '" size="25" />' .
'</p>';

// Get the username field
echo '<p>' .
'<label for="username">' . __( 'Username', 'mydomain' ) . '</label>' .
'<input type="text" name="username" id="username" class="input" value="' . ( isset( $_POST['username'] ) ? esc_attr( $_POST['username'] ) : '' ) . '" size="25" />' .
'</p>';

// Get the password field
echo '<p>' .
'<label for="password">' . __( 'Password', 'mydomain' ) . '</label>' .
'<input type="password" name="password" id="password" class="input" value="" size="25" />' .
'</p>';

// Get the confirm password field
echo '<p>' .
'<label for="confirm_password">' . __( 'Confirm Password', 'mydomain' ) . '</label>' .
'<input type="password" name="confirm_password" id="confirm_password" class="input" value="" size="25" />' .
'</p>';

// Get the submit button
echo '<p>' .
'<input type="submit" name="submit" id="submit" class="button button-primary" value="' . __( 'Register', 'mydomain' ) . '" />' .
'</p>' .
'</form>';

Once you have created the registration form, you will need to process the registration data using the register_new_user() function.

Here is an example of how you can use register_new_user() to process the registration data:

// Process the registration data
$user_id = register_new_user( $_POST['username'], $_POST['email'] );

if ( is_wp_error( $user_id ) ) {
	// There was an error
	echo $user_id->get_error_message();
} else {
	// The user was registered
	echo 'Success!';
}

You can learn more about the register_new_user() function in the WordPress Codex.

If you want to style the registration form, then you will need to target the form elements using CSS.

Wrapping Up

In this article, we showed you how to add a login and register modal to your WordPress plugin. If you have any questions, then please leave a comment below.

Assuming you have a basic understanding of PHP and WordPress plugin development, let’s take a look at how to add a login/register modal to your plugin.

There are two ways to do this: by using a WordPress plugin or by adding the code directly to your plugin.

If you want to use a WordPress plugin, we recommend using the Login/Register Modal plugin. This plugin is simple to use and will add a login/register modal to your WordPress site.

To add the code directly to your plugin, you will need to add the following code to your plugin file:

This code will include the Login/Register Modal plugin file and instantiate the Login/Register Modal class. Next, we need to register the login/register modal with WordPress so that it is available to use on our WordPress site.

We can do this by adding the following code to our plugin file:

In the code above, we have added an action hook that will add the login/register modal to our plugin. The code for the login/register modal is available on the WordPress plugin repository.

That’s all you need to do to add a login/register modal to your plugin. We hope this article has helped you.