<?php
/**
 * fixing utf8 post name 
 */

/** Sets up the WordPress Environment. */
require( dirname(__FILE__) . '/wp-load.php' );

$posts_to_fix = $wpdb->get_results("SELECT ID, post_name FROM $wpdb->posts");

foreach ($posts_to_fix as $fix) {
  echo "fixing: $fix->ID\n";
  $name = sanitize_title($fix->post_name);
  $wpdb->query("
	UPDATE $wpdb->posts
          SET post_name = '$name'
        WHERE ID = " . $fix->ID);
  
}

?>