gistfile1.txt

add_shortcode('login-form', 'i332i_login_form_shortcode');

function i332i_login_form_shortcode( $attr ) {

if ( is_user_logged_in() )
return '';

/* Set up some defaults. */
$defaults = array(
'label_username' => 'Username',
'label_password' => 'Password',
'redirect'       =>  site_url(),

);

/* Merge the user input arguments with the defaults. */
$attr = shortcode_atts( $defaults, $attr );

/* Set 'echo' to 'false' because we want it to always return instead of print for shortcodes. */
$attr['echo'] = false;


return wp_login_form( $attr );
}