Flush all output buffers during shutdown to avoid PHP 5 bustage. see #3354

git-svn-id: http://svn.automattic.com/wordpress/trunk@5462 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/default-filters.php

@@ -173,7 +173,7 @@ add_action('sanitize_comment_cookies', 'sanitize_comment_cookies');
 add_action('admin_print_scripts', 'wp_print_scripts', 20);
 add_action('mce_options', '_mce_set_direction');
 add_action('init', 'smilies_init', 5);
-
 add_action( 'plugins_loaded', 'wp_maybe_load_widgets', 0 );
+add_action( 'shutdown', 'wp_ob_end_flush_all', 1);
 
 ?>

wp-includes/functions.php

@@ -1530,4 +1530,11 @@ function wp_widgets_add_menu() {
 	ksort($submenu['themes.php'], SORT_NUMERIC);
 }
 
+// For PHP 5.2, make sure all output buffers are flushed
+// before our singletons our destroyed.
+function wp_ob_end_flush_all()
+{
+	while ( @ob_end_flush() );
+}
+
 ?>