CLASSE POUR RÉCUPÉRER UNE PORTION DE TEXTE HTML EN GARDANT LA STRUCTURE

<?php
    include('HtmlShrinker.class.php');

    $html = '<p class="maclasse">Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>
             <p style="color:#c00;">In eu aliquam libero. Fusce quam urna, tincidunt in porttitor at, hendrerit at nibh.</p>
             <p>Suspendisse potenti. <a href="#">In id urna <strong>ut ipsum</strong> dapibus</a> facilisis vitae id tellus.</p>
             <p>Suspendisse ultrices <span style="color:#00c;font-size:15px;">urna</span> vel mauris dictum a condimentum massa tincidunt.</p>
             <div style="float:left;width:200px;height:200px;margin:15px;">
                <h2>Nam ac urna ligula, eget hendrerit ipsum.</h2>
                <p>Aenean at sapien sit amet erat vestibulum luctus ac pharetra purus.</p>
             </div>
             <p>Ut luctus, mi nec malesuada luctus, odio lacus iaculis metus, placerat pellentesque justo ante in lectus.</p>
             <p>Donec pharetra adipiscing sem, a sollicitudin lectus pretium vitae.</p>';

    $htmlShrinker = new HtmlShrinker();
    $htmlShrinker->setMaxChar(150)
                 ->shrinkHTML($html);
?>