February 12, 2011 
Definition:
function login_header($title = 'Log In', $message = '', $wp_error = '') {}
Outputs the header for the login page.
Parameters
- string $title: Optional. WordPress Log In Page title to display in <title/> element.
- string $message: Optional. Message to display in header.
- WP_Error $wp_error: Optional. WordPress Error Object
Defined filters
- shake_error_codes
apply_filters( 'shake_error_codes', $shake_error_codes ) - login_headerurl
apply_filters('login_headerurl', 'http://wordpress.org/') - login_headertitle
apply_filters('login_headertitle', __( 'Powered by WordPress' ) - login_headerurl
apply_filters('login_headerurl', network_home_url() - login_headertitle
apply_filters('login_headertitle', $current_site->site_name ) - login_message
apply_filters('login_message', $message) - login_errors
apply_filters('login_errors', $errors) - login_messages
apply_filters('login_messages', $messages)
Defined actions
- login_enqueue_scripts
do_action( 'login_enqueue_scripts' ); - login_head
do_action( 'login_head' );
Source code
function login_header($title = 'Log In', $message = '', $wp_error = '') {
global $error, $is_iphone, $interim_login, $current_site;
// Don't index any of these forms
add_action( 'login_head', 'wp_no_robots' );
if ( empty($wp_error) )
$wp_error = new WP_Error();
// Shake it!
$shake_error_codes = array( 'empty_password', 'empty_email', 'invalid_email', 'invalidcombo', 'empty_username', 'invalid_username', 'incorrect_password' );
$shake_error_codes = apply_filters( 'shake_error_codes', $shake_error_codes );
if ( $shake_error_codes && $wp_error->get_error_code() && in_array( $wp_error->get_error_code(), $shake_error_codes ) )
add_action( 'login_head', 'wp_shake_js', 12 );
?>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" <?php language_attributes(); ?>>
<head>
<meta http-equiv="Content-Type" content="<?php bloginfo('html_type'); ?>; charset=<?php bloginfo('charset'); ?>" />
<title><?php bloginfo('name'); ?> › <?php echo $title; ?></title>
<?php
wp_admin_css( 'wp-admin', true );
wp_admin_css( 'colors-fresh', true );
if ( $is_iphone ) { ?>
<meta name="viewport" content="width=320; initial-scale=0.9; maximum-scale=1.0; user-scalable=0;" />
<style type="text/css" media="screen">
.login form, .login .message, #login_error { margin-left: 0px; }
.login #nav, .login #backtoblog { margin-left: 8px; }
.login h1 a { width: auto; }
#login { padding: 20px 0; }
</style>
<?php
}
do_action( 'login_enqueue_scripts' );
do_action( 'login_head' ); ?>
</head>
<body class="login">
<?php if ( !is_multisite() ) { ?>
<div id="login"><h1><a href="<?php echo esc_url( apply_filters('login_headerurl', 'http://wordpress.org/') ); ?>" title="<?php echo esc_attr( apply_filters('login_headertitle', __( 'Powered by WordPress' ) ) ); ?>"><?php bloginfo('name'); ?></a></h1>
<?php } else { ?>
<div id="login"><h1><a href="<?php echo esc_url( apply_filters('login_headerurl', network_home_url() ) ); ?>" title="<?php echo esc_attr( apply_filters('login_headertitle', $current_site->site_name ) ); ?>"><span class="hide"><?php bloginfo('name'); ?></span></a></h1>
<?php }
$message = apply_filters('login_message', $message);
if ( !empty( $message ) ) echo $message . "\n";
// In case a plugin uses $error rather than the $wp_errors object
if ( !empty( $error ) ) {
$wp_error->add('error', $error);
unset($error);
}
if ( $wp_error->get_error_code() ) {
$errors = '';
$messages = '';
foreach ( $wp_error->get_error_codes() as $code ) {
$severity = $wp_error->get_error_data($code);
foreach ( $wp_error->get_error_messages($code) as $error ) {
if ( 'message' == $severity )
$messages .= ' ' . $error . "<br />\n";
else
$errors .= ' ' . $error . "<br />\n";
}
}
if ( !empty($errors) )
echo '<div id="login_error">' . apply_filters('login_errors', $errors) . "</div>\n";
if ( !empty($messages) )
echo '<p class="message">' . apply_filters('login_messages', $messages) . "</p>\n";
}
} // End of login_header()
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