WordPress Cross Reference

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   1  <?php
   2  /**
   3   * Upgrade WordPress Page.
   4   *
   5   * @package WordPress
   6   * @subpackage Administration
   7   */
   8  
   9  /**
  10   * We are upgrading WordPress.
  11   *
  12   * @since 1.5.1
  13   * @var bool
  14   */
  15  define( 'WP_INSTALLING', true );
  16  
  17  /** Load WordPress Bootstrap */
  18  require( dirname( dirname( __FILE__ ) ) . '/wp-load.php' );
  19  
  20  nocache_headers();
  21  
  22  timer_start();
  23  require_once ( ABSPATH . 'wp-admin/includes/upgrade.php' );
  24  
  25  delete_site_transient('update_core');
  26  
  27  if ( isset( $_GET['step'] ) )
  28      $step = $_GET['step'];
  29  else
  30      $step = 0;
  31  
  32  // Do it. No output.
  33  if ( 'upgrade_db' === $step ) {
  34      wp_upgrade();
  35      die( '0' );
  36  }
  37  
  38  $step = (int) $step;
  39  
  40  $php_version    = phpversion();
  41  $mysql_version  = $wpdb->db_version();
  42  $php_compat     = version_compare( $php_version, $required_php_version, '>=' );
  43  if ( file_exists( WP_CONTENT_DIR . '/db.php' ) && empty( $wpdb->is_mysql ) )
  44      $mysql_compat = true;
  45  else
  46      $mysql_compat = version_compare( $mysql_version, $required_mysql_version, '>=' );
  47  
  48  @header( 'Content-Type: ' . get_option( 'html_type' ) . '; charset=' . get_option( 'blog_charset' ) );
  49  ?>
  50  <!DOCTYPE html>
  51  <html xmlns="http://www.w3.org/1999/xhtml" <?php language_attributes(); ?>>
  52  <head>
  53      <meta name="viewport" content="width=device-width" />
  54      <meta http-equiv="Content-Type" content="<?php bloginfo( 'html_type' ); ?>; charset=<?php echo get_option( 'blog_charset' ); ?>" />
  55      <title><?php _e( 'WordPress &rsaquo; Update' ); ?></title>
  56      <?php
  57      wp_admin_css( 'install', true );
  58      wp_admin_css( 'ie', true );
  59      ?>
  60  </head>
  61  <body class="wp-core-ui">
  62  <h1 id="logo"><a href="<?php echo esc_url( __( 'http://wordpress.org/' ) ); ?>"><?php _e( 'WordPress' ); ?></a></h1>
  63  
  64  <?php if ( get_option( 'db_version' ) == $wp_db_version || !is_blog_installed() ) : ?>
  65  
  66  <h2><?php _e( 'No Update Required' ); ?></h2>
  67  <p><?php _e( 'Your WordPress database is already up-to-date!' ); ?></p>
  68  <p class="step"><a class="button button-large" href="<?php echo get_option( 'home' ); ?>/"><?php _e( 'Continue' ); ?></a></p>
  69  
  70  <?php elseif ( !$php_compat || !$mysql_compat ) :
  71      if ( !$mysql_compat && !$php_compat )
  72          printf( __('You cannot update because <a href="http://codex.wordpress.org/Version_%1$s">WordPress %1$s</a> requires PHP version %2$s or higher and MySQL version %3$s or higher. You are running PHP version %4$s and MySQL version %5$s.'), $wp_version, $required_php_version, $required_mysql_version, $php_version, $mysql_version );
  73      elseif ( !$php_compat )
  74          printf( __('You cannot update because <a href="http://codex.wordpress.org/Version_%1$s">WordPress %1$s</a> requires PHP version %2$s or higher. You are running version %3$s.'), $wp_version, $required_php_version, $php_version );
  75      elseif ( !$mysql_compat )
  76          printf( __('You cannot update because <a href="http://codex.wordpress.org/Version_%1$s">WordPress %1$s</a> requires MySQL version %2$s or higher. You are running version %3$s.'), $wp_version, $required_mysql_version, $mysql_version );
  77  ?>
  78  <?php else :
  79  switch ( $step ) :
  80      case 0:
  81          $goback = wp_get_referer();
  82          $goback = esc_url_raw( $goback );
  83          $goback = urlencode( $goback );
  84  ?>
  85  <h2><?php _e( 'Database Update Required' ); ?></h2>
  86  <p><?php _e( 'WordPress has been updated! Before we send you on your way, we have to update your database to the newest version.' ); ?></p>
  87  <p><?php _e( 'The update process may take a little while, so please be patient.' ); ?></p>
  88  <p class="step"><a class="button button-large" href="upgrade.php?step=1&amp;backto=<?php echo $goback; ?>"><?php _e( 'Update WordPress Database' ); ?></a></p>
  89  <?php
  90          break;
  91      case 1:
  92          wp_upgrade();
  93  
  94              $backto = !empty($_GET['backto']) ? wp_unslash( urldecode( $_GET['backto'] ) ) : __get_option( 'home' ) . '/';
  95              $backto = esc_url( $backto );
  96              $backto = wp_validate_redirect($backto, __get_option( 'home' ) . '/');
  97  ?>
  98  <h2><?php _e( 'Update Complete' ); ?></h2>
  99      <p><?php _e( 'Your WordPress database has been successfully updated!' ); ?></p>
 100      <p class="step"><a class="button button-large" href="<?php echo $backto; ?>"><?php _e( 'Continue' ); ?></a></p>
 101  
 102  <!--
 103  <pre>
 104  <?php printf( __( '%s queries' ), $wpdb->num_queries ); ?>
 105  
 106  <?php printf( __( '%s seconds' ), timer_stop( 0 ) ); ?>
 107  </pre>
 108  -->
 109  
 110  <?php
 111          break;
 112  endswitch;
 113  endif;
 114  ?>
 115  </body>
 116  </html>
/wp-admin/ -> upgrade.php (source)
