include('simple_html_dom.php');
$html = str_get_html('<html><div id="main"><div id="inside">текст</div><div class="class">текст</div></div>');
$html->find('div#main', 0)->innertext = '';
$outText = $html->save();....
WHERE `date` BETWEEN CURDATE()
AND DATE_ADD(CURDATE(), INTERVAL 7-WEEKDAY(CURDATE()) DAY)