I'm doing a .php RSS generator and I have a problem trying to get data from my database in this line:

<description><![CDATA[<?=htmlspecialchars(utf8_substr($row['texto'], 0, 100), ENT_QUOTES, 'utf-8') ?>...]]></description>

Some entries show just fine, and others wont return any text... Any idea on what could be wrong?

This is all the code: 

<?php

require('php/config.php');
require('php/db.php');
require('php/utils.php');

header("Content-type: application/xml");

$db = new TSQL('SELECT * FROM entradas WHERE estado = 1 ORDER BY fecha DESC LIMIT 20');
if ( $db->executeQuery() ) {

?><?='<?xml version="1.0" encoding="utf-8" ?>' ?>
<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
    <channel>
        <title>Tu Secreto</title>
        <link>http://www.tusecreto.com.ar/</link>
        <description>TuSecreto / No se lo cuentes a nadie, contaselo a todos</description>
        <language>es-ar</language>
        <copyright>TuSecreto (C) 2005-<?php print strftime("%Y", time()); ?></copyright>
        <lastBuildDate><?=strftime("%a, %d %b %Y %H:%M:%S ", $row['fecha']) ?></lastBuildDate>
        <atom:link href="http://www.tusecreto.com.ar/rss.php" rel="self" type="application/rss+xml" />
        <docs>http://www.tusecreto.com.ar/rss.php</docs>
        <generator>TuSecreto RSS Generator v1.0</generator>
        <ttl>10</ttl>
        <? while ($row = $db->getRow(MYSQL_ASSOC)) { ?>
        <item>
            <title><?=($row['sexo'] == MUJER)?'Mujer':'Hombre' ?> | <?=$row['edad'] ?> <?="A\xC3\xB1os" ?></title>
            <description><![CDATA[<?=htmlspecialchars(utf8_substr($row['texto'], 0, 100), ENT_QUOTES, 'utf-8') ?>...]]></description>
            <li
php mysql utf-8 htmlspecialchars
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