Código PHP:
<?php
$break="|";
foreach ($slice as $lnum => $thisline) {
list($titulo, $link, $fecha, $autor, $id)=explode($break,$thisline);
$break = "|";
$cssclass = "linkviejo";
if( $fecha == date( "Y-m-d" ) ) { $cssclass = "linknuevo"; } // Aqui depende del formato de tu fecha
echo "<div align =\"center\"><table width=\"100%\" border=\"1px\" bordercolor=\"#000000\">";
echo "<td width=\"110\" style=\"border-style:dashed\" bordercolor=\"#222222\">$autor</td><td style=\"border-style:dashed\" bordercolor=\"#222222\"><div align =\"center\"><span class=\"title\"><a href=\"$link\" target=\"_blank\" class=\"$cssclass\">$titulo</a></span></div></td><td width=\"110\" style=\"border-style:dashed\" bordercolor=\"#222222\">$fecha</td>";
echo "</table></div>";
}
?>