gistfile1.php

<?php
/** WordPressの設定ファイル */
require_once('wp-config.php');

$db = mysql_connect(DB_HOST, DB_USER, DB_PASSWORD);
mysql_select_db(DB_NAME, $db);

$sql = "SELECT post_date, post_name FROM wp_posts WHERE post_type = 'post' AND post_status = 'publish' ORDER BY post_date DESC";

$result = mysql_query($sql, $db);
while ($row = mysql_fetch_assoc($result)) {
  $pn = $row['post_name'];
  $pd = strtotime($row['post_date']);

  // パスのみ
  $from = '/weblog/' . date('Y/m/', $pd) . $pn . '.html';
  // フルURL
  $to   = 'http://example.com/weblog/' . date('/Y/m/d/His', $pd) . '.html';

  echo 'Redirect permanent ' . $from . ' ' . $to . "\n";
}

mysql_close($db);
?>