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

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