PHPXRef 0.7.1 : WordPress Trunk (Updated Daily) : /wp-admin/upgrade.php source

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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( __DIR__ ) . '/wp-load.php';
  19  
  20  nocache_headers();
  21  
  22  require_once  ABSPATH . 'wp-admin/includes/upgrade.php';
  23  
  24  delete_site_transient( 'update_core' );
  25  
  26  if ( isset( $_GET['step'] ) ) {
  27      $step = $_GET['step'];
  28  } else {
  29      $step = 0;
  30  }
  31  
  32  // Do it. No output.
  33  if ( 'upgrade_db' === $step ) {
  34      wp_upgrade();
  35      die( '0' );
  36  }
  37  
  38  /**
  39   * @global string   $wp_version              The WordPress version string.
  40   * @global string   $required_php_version    The required PHP version string.
  41   * @global string[] $required_php_extensions The names of required PHP extensions.
  42   * @global string   $required_mysql_version  The required MySQL version string.
  43   * @global wpdb     $wpdb                    WordPress database abstraction object.
  44   */
  45  global $wp_version, $required_php_version, $required_php_extensions, $required_mysql_version, $wpdb;
  46  
  47  $step = (int) $step;
  48  
  49  $php_version   = PHP_VERSION;
  50  $mysql_version = $wpdb->db_version();
  51  $php_compat    = version_compare( $php_version, $required_php_version, '>=' );
  52  if ( file_exists( WP_CONTENT_DIR . '/db.php' ) && empty( $wpdb->is_mysql ) ) {
  53      $mysql_compat = true;
  54  } else {
  55      $mysql_compat = version_compare( $mysql_version, $required_mysql_version, '>=' );
  56  }
  57  
  58  $missing_extensions = array();
  59  
  60  if ( isset( $required_php_extensions ) && is_array( $required_php_extensions ) ) {
  61      foreach ( $required_php_extensions as $extension ) {
  62          if ( extension_loaded( $extension ) ) {
  63              continue;
  64          }
  65  
  66          $missing_extensions[] = sprintf(
  67              /* translators: 1: URL to WordPress release notes, 2: WordPress version number, 3: The PHP extension name needed. */
  68              __( 'You cannot upgrade because <a href="%1$s">WordPress %2$s</a> requires the %3$s PHP extension.' ),
  69              $version_url,
  70              $wp_version,
  71              $extension
  72          );
  73      }
  74  }
  75  
  76  header( 'Content-Type: ' . get_option( 'html_type' ) . '; charset=' . get_option( 'blog_charset' ) );
  77  ?>
  78  <!DOCTYPE html>
  79  <html <?php language_attributes(); ?>>
  80  <head>
  81      <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  82      <meta http-equiv="Content-Type" content="<?php bloginfo( 'html_type' ); ?>; charset=<?php echo get_option( 'blog_charset' ); ?>" />
  83      <meta name="robots" content="noindex,nofollow" />
  84      <title><?php _e( 'WordPress &rsaquo; Update' ); ?></title>
  85      <?php wp_admin_css( 'install', true ); ?>
  86  </head>
  87  <body class="wp-core-ui">
  88  <p id="logo"><a href="<?php echo esc_url( __( 'https://wordpress.org/' ) ); ?>"><?php _e( 'WordPress' ); ?></a></p>
  89  
  90  <?php if ( (int) get_option( 'db_version' ) === $wp_db_version || ! is_blog_installed() ) : ?>
  91  
  92  <h1><?php _e( 'No Update Required' ); ?></h1>
  93  <p><?php _e( 'Your WordPress database is already up to date!' ); ?></p>
  94  <p class="step"><a class="button button-large" href="<?php echo esc_url( get_option( 'home' ) ); ?>/"><?php _e( 'Continue' ); ?></a></p>
  95  
  96      <?php
  97  elseif ( ! $php_compat || ! $mysql_compat ) :
  98      $version_url = sprintf(
  99          /* translators: %s: WordPress version. */
 100          esc_url( __( 'https://wordpress.org/documentation/wordpress-version/version-%s/' ) ),
 101          sanitize_title( $wp_version )
 102      );
 103  
 104      $php_update_message = '</p><p>' . sprintf(
 105          /* translators: %s: URL to Update PHP page. */
 106          __( '<a href="%s">Learn more about updating PHP</a>.' ),
 107          esc_url( wp_get_update_php_url() )
 108      );
 109  
 110      $annotation = wp_get_update_php_annotation();
 111  
 112      if ( $annotation ) {
 113          $php_update_message .= '</p><p><em>' . $annotation . '</em>';
 114      }
 115  
 116      if ( ! $mysql_compat && ! $php_compat ) {
 117          $message = sprintf(
 118              /* translators: 1: URL to WordPress release notes, 2: WordPress version number, 3: Minimum required PHP version number, 4: Minimum required MySQL version number, 5: Current PHP version number, 6: Current MySQL version number. */
 119              __( 'You cannot update because <a href="%1$s">WordPress %2$s</a> requires PHP version %3$s or higher and MySQL version %4$s or higher. You are running PHP version %5$s and MySQL version %6$s.' ),
 120              $version_url,
 121              $wp_version,
 122              $required_php_version,
 123              $required_mysql_version,
 124              $php_version,
 125              $mysql_version
 126          ) . $php_update_message;
 127      } elseif ( ! $php_compat ) {
 128          $message = sprintf(
 129              /* translators: 1: URL to WordPress release notes, 2: WordPress version number, 3: Minimum required PHP version number, 4: Current PHP version number. */
 130              __( 'You cannot update because <a href="%1$s">WordPress %2$s</a> requires PHP version %3$s or higher. You are running version %4$s.' ),
 131              $version_url,
 132              $wp_version,
 133              $required_php_version,
 134              $php_version
 135          ) . $php_update_message;
 136      } elseif ( ! $mysql_compat ) {
 137          $message = sprintf(
 138              /* translators: 1: URL to WordPress release notes, 2: WordPress version number, 3: Minimum required MySQL version number, 4: Current MySQL version number. */
 139              __( 'You cannot update because <a href="%1$s">WordPress %2$s</a> requires MySQL version %3$s or higher. You are running version %4$s.' ),
 140              $version_url,
 141              $wp_version,
 142              $required_mysql_version,
 143              $mysql_version
 144          );
 145      }
 146  
 147      echo '<p>' . $message . '</p>';
 148  elseif ( count( $missing_extensions ) > 0 ) :
 149      echo '<p>' . implode( '</p><p>', $missing_extensions ) . '</p>';
 150  else :
 151      switch ( $step ) :
 152          case 0:
 153              $goback = wp_get_referer();
 154              if ( $goback ) {
 155                  $goback = sanitize_url( $goback );
 156                  $goback = urlencode( $goback );
 157              }
 158              ?>
 159      <h1><?php _e( 'Database Update Required' ); ?></h1>
 160  <p><?php _e( 'WordPress has been updated! Next and final step is to update your database to the newest version.' ); ?></p>
 161  <p><?php _e( 'The database update process may take a little while, so please be patient.' ); ?></p>
 162  <p class="step"><a class="button button-large button-primary" href="upgrade.php?step=1&amp;backto=<?php echo $goback; ?>"><?php _e( 'Update WordPress Database' ); ?></a></p>
 163              <?php
 164              break;
 165          case 1:
 166              wp_upgrade();
 167  
 168              $backto = ! empty( $_GET['backto'] ) ? wp_unslash( urldecode( $_GET['backto'] ) ) : __get_option( 'home' ) . '/';
 169              $backto = esc_url( $backto );
 170              $backto = wp_validate_redirect( $backto, __get_option( 'home' ) . '/' );
 171              ?>
 172      <h1><?php _e( 'Update Complete' ); ?></h1>
 173      <p><?php _e( 'Your WordPress database has been successfully updated!' ); ?></p>
 174      <p class="step"><a class="button button-large" href="<?php echo $backto; ?>"><?php _e( 'Continue' ); ?></a></p>
 175              <?php
 176              break;
 177  endswitch;
 178  endif;
 179  ?>
 180  </body>
 181  </html>
PHP Cross Reference of WordPress Trunk (Updated Daily)

/wp-admin/ -> upgrade.php (source)
