WordPress/wp-admin/upgrade.php

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<?php
/**
* Upgrade WordPress Page.
*
* @package WordPress
* @subpackage Administration
*/
/**
* We are upgrading WordPress.
*
* @since unknown
* @var bool
*/
define( 'WP_INSTALLING', true );
/** Load WordPress Bootstrap */
require( '../wp-load.php' );
timer_start();
require_once( ABSPATH . 'wp-admin/includes/upgrade.php' );
if ( isset( $_GET['step'] ) )
$step = $_GET['step'];
else
$step = 0;
// Do it. No output.
if ( 'upgrade_db' === $step ) {
wp_upgrade();
die( '0' );
}
$step = (int) $step;
@header( 'Content-Type: ' . get_option( 'html_type' ) . '; charset=' . get_option( 'blog_charset' ) );
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" <?php language_attributes(); ?>>
<head>
<meta http-equiv="Content-Type" content="<?php bloginfo( 'html_type' ); ?>; charset=<?php echo get_option( 'blog_charset' ); ?>" />
<title><?php _e( 'WordPress &rsaquo; Upgrade' ); ?></title>
<?php wp_admin_css( 'install', true ); ?>
</head>
<body>
<h1 id="logo"><img alt="WordPress" src="images/wordpress-logo.png" /></h1>
<?php if ( get_option( 'db_version' ) == $wp_db_version || !is_blog_installed() ) : ?>
<h2><?php _e( 'No Upgrade Required' ); ?></h2>
<p><?php _e( 'Your WordPress database is already up-to-date!' ); ?></p>
<p class="step"><a class="button" href="<?php echo get_option( 'home' ); ?>/"><?php _e( 'Continue' ); ?></a></p>
<?php else :
switch ( $step ) :
case 0:
$goback = stripslashes( wp_get_referer() );
$goback = clean_url( $goback, null, 'url' );
$goback = urlencode( $goback );
?>
<h2><?php _e( 'Database Upgrade Required' ); ?></h2>
<p><?php _e( 'WordPress has been updated! Before we send you on your way, we have to upgrade your database to the newest version.' ); ?></p>
<p><?php _e( 'The upgrade process may take a little while, so please be patient.' ); ?></p>
<p class="step"><a class="button" href="upgrade.php?step=1&amp;backto=<?php echo $goback; ?>"><?php _e( 'Upgrade WordPress Database' ); ?></a></p>
<?php
break;
case 1:
wp_upgrade();
if ( empty( $_GET['backto'] ) )
$backto = __get_option( 'home' ) . '/';
else {
$backto = stripslashes( urldecode( $_GET['backto'] ) );
$backto = clean_url( $backto, null, 'url' );
}
?>
<h2><?php _e( 'Upgrade Complete' ); ?></h2>
<p><?php _e( 'Your WordPress database has been successfully upgraded!' ); ?></p>
<p class="step"><a class="button" href="<?php echo $backto; ?>"><?php _e( 'Continue' ); ?></a></p>
<!--
<pre>
<?php printf( __( '%s queries' ), $wpdb->num_queries ); ?>
<?php printf( __( '%s seconds' ), timer_stop( 0 ) ); ?>
</pre>
-->
<?php
break;
endswitch;
endif;
?>
</body>
</html>