Display the Registration or Admin link.

Display a link which allows the user to navigate to the registration page if not logged in and registration is enabled or to the dashboard if logged in.

Signature

wp_register( $before = '<li>', $after = '</li>', $echo = true )
before
 (string) Text to output before the link (defaults to <li>).
Default: '<li>'
after
 (string) Text to output after the link (defaults to </li>).
Default: '</li>'
echo
 (boolean) Default to echo and not return the link.
Default: true

Return

(string|null) String when retrieving, null when displaying.

Source

function wp_register( $before = '<li>', $after = '</li>', $echo = true ) {

	if ( ! is_user_logged_in() ) {
		if ( get_option('users_can_register') )
			$link = $before . '<a href="' . esc_url( wp_registration_url() ) . '">' . __('Register') . '</a>' . $after;
		else
			$link = '';
	} else {
		$link = $before . '<a href="' . admin_url() . '">' . __('Site Admin') . '</a>' . $after;
	}

	if ( $echo ) {
		/**
		 * Filter the HTML link to the Registration or Admin page.
		 *
		 * Users are sent to the admin page if logged-in, or the registration page
		 * if enabled and logged-out.
		 *
		 * @since 1.5.0
		 *
		 * @param string $link The HTML code for the link to the Registration or Admin page.
		 */
		echo apply_filters( 'register', $link );
	} else {
		/** This filter is documented in wp-includes/general-template.php */
		return apply_filters( 'register', $link );
	}
}
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