timer_start();
require_once( ABSPATH . 'wp-admin/includes/upgrade.php' );
-delete_transient('update_core');
+delete_site_transient('update_core');
if ( isset( $_GET['step'] ) )
$step = $_GET['step'];
$step = (int) $step;
+$php_version = phpversion();
+$mysql_version = $wpdb->db_version();
+$php_compat = version_compare( $php_version, $required_php_version, '>=' );
+$mysql_compat = version_compare( $mysql_version, $required_mysql_version, '>=' ) || file_exists( WP_CONTENT_DIR . '/db.php' );
+
@header( 'Content-Type: ' . get_option( 'html_type' ) . '; charset=' . get_option( 'blog_charset' ) );
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<head>
<meta http-equiv="Content-Type" content="<?php bloginfo( 'html_type' ); ?>; charset=<?php echo get_option( 'blog_charset' ); ?>" />
<title><?php _e( 'WordPress › Upgrade' ); ?></title>
- <?php wp_admin_css( 'install', true ); ?>
+ <?php
+ wp_admin_css( 'install', true );
+ wp_admin_css( 'ie', true );
+ ?>
</head>
<body>
<h1 id="logo"><img alt="WordPress" src="images/wordpress-logo.png" /></h1>
<p><?php _e( 'Your WordPress database is already up-to-date!' ); ?></p>
<p class="step"><a class="button" href="<?php echo get_option( 'home' ); ?>/"><?php _e( 'Continue' ); ?></a></p>
+<?php elseif ( !$php_compat || !$mysql_compat ) :
+ if ( !$mysql_compat && !$php_compat )
+ printf( __('You cannot upgrade because <a href="http://codex.wordpress.org/Version_%1$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, $mysql_version );
+ elseif ( !$php_compat )
+ printf( __('You cannot upgrade 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, $php_version );
+ elseif ( !$mysql_compat )
+ printf( __('You cannot upgrade 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 );
+?>
<?php else :
switch ( $step ) :
case 0:
break;
case 1:
wp_upgrade();
-
- $backto = empty($_GET['backto']) ? '' : $_GET['backto'] ;
- $backto = stripslashes( urldecode( $backto ) );
- $backto = esc_url_raw( $backto );
+
+ $backto = !empty($_GET['backto']) ? stripslashes( urldecode( $_GET['backto'] ) ) : __get_option( 'home' ) . '/';
+ $backto = esc_url_raw( $backto );
$backto = wp_validate_redirect($backto, __get_option( 'home' ) . '/');
?>
<h2><?php _e( 'Upgrade Complete' ); ?></h2>