db_version(); $php_compat = version_compare( $php_version, $required_php_version, '>=' ); if ( file_exists( WP_CONTENT_DIR . '/db.php' ) && empty( $wpdb->is_mysql ) ) { $mysql_compat = true; } else { $mysql_compat = version_compare( $mysql_version, $required_mysql_version, '>=' ); } $missing_extensions = array(); if ( isset( $required_php_extensions ) && is_array( $required_php_extensions ) ) { foreach ( $required_php_extensions as $extension ) { if ( extension_loaded( $extension ) ) { continue; } $missing_extensions[] = sprintf( /* translators: 1: URL to WordPress release notes, 2: WordPress version number, 3: The PHP extension name needed. */ __( 'You cannot upgrade because WordPress %2$s requires the %3$s PHP extension.' ), $version_url, $wp_version, $extension ); } } header( 'Content-Type: ' . get_option( 'html_type' ) . '; charset=' . get_option( 'blog_charset' ) ); ?> > <?php _e( 'WordPress › Update' ); ?>

' . sprintf( /* translators: %s: URL to Update PHP page. */ __( 'Learn more about updating PHP.' ), esc_url( wp_get_update_php_url() ) ); $annotation = wp_get_update_php_annotation(); if ( $annotation ) { $php_update_message .= '

' . $annotation . ''; } if ( ! $mysql_compat && ! $php_compat ) { $message = sprintf( /* translators: 1: URL to WordPress release notes, 2: WordPress version number, 3: Minimum required PHP version number, 4: Minimum required MySQL version number, 5: Current PHP version number, 6: Current MySQL version number. */ __( 'You cannot update because WordPress %2$s 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.' ), $version_url, $wp_version, $required_php_version, $required_mysql_version, $php_version, $mysql_version ) . $php_update_message; } elseif ( ! $php_compat ) { $message = sprintf( /* translators: 1: URL to WordPress release notes, 2: WordPress version number, 3: Minimum required PHP version number, 4: Current PHP version number. */ __( 'You cannot update because WordPress %2$s requires PHP version %3$s or higher. You are running version %4$s.' ), $version_url, $wp_version, $required_php_version, $php_version ) . $php_update_message; } elseif ( ! $mysql_compat ) { $message = sprintf( /* translators: 1: URL to WordPress release notes, 2: WordPress version number, 3: Minimum required MySQL version number, 4: Current MySQL version number. */ __( 'You cannot update because WordPress %2$s requires MySQL version %3$s or higher. You are running version %4$s.' ), $version_url, $wp_version, $required_mysql_version, $mysql_version ); } echo '

' . $message . '

'; elseif ( count( $missing_extensions ) > 0 ) : echo '

' . implode( '

', $missing_extensions ) . '

'; else : switch ( $step ) : case 0: $goback = wp_get_referer(); if ( $goback ) { $goback = sanitize_url( $goback ); $goback = urlencode( $goback ); } ?>