<?php

/**
 * This software is intended for use with Oxwall Free Community Software http://www.oxwall.org/ and is
 * licensed under The BSD license.

 * ---
 * Copyright (c) 2011, Oxwall Foundation
 * All rights reserved.

 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
 * following conditions are met:
 *
 *  - Redistributions of source code must retain the above copyright notice, this list of conditions and
 *  the following disclaimer.
 *
 *  - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
 *  the following disclaimer in the documentation and/or other materials provided with the distribution.
 *
 *  - Neither the name of the Oxwall Foundation nor the names of its contributors may be used to endorse or promote products
 *  derived from this software without specific prior written permission.

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

$exArr = array();

$start = 0;
$count = 100;

while ( true )
{
    $postList = array();
    
    $sql = "SELECT * FROM `".OW_DB_PREFIX."blogs_post` 
        ORDER BY `timestamp` ASC LIMIT :start, :count";

    try
    {
        $postList = Updater::getDbo()->queryForList($sql, array('start' => $start, 'count' => $count));
    }
    catch ( Exception $e ){ $exArr[] = $e; }

    if ( empty($postList) )
    {
        break;
    }

    foreach ( $postList as $post )
    {
        $sql = "UPDATE `".OW_DB_PREFIX."blogs_post` 
            SET `post` = :post 
            WHERE `id` = :id";
        
        try
        {
            Updater::getDbo()->query($sql, array('post' => nl2br($post['post']), 'id' => $post['id']));
        }
        catch ( Exception $e ){ $exArr[] = $e; }
    }
    
    $start += $count;
}

• [F] update.php
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