To je možné dělat v PHP takovéto prasečiny typu ukončíme ?> uprostřed kodu? Pochybuju.
<?
if(poslano=="true"){
$cas=date("d. m. Y H:i");
$komentar = htmlspecialchars($komentar);
$video = "<table rules='all' cellspacing='1' cellpading='4'><tr> <td valign='top' width='150'><small>Nahrál:" . $uzivatel . " </small> <br><small>Kdy:" . $cas . "</small> <br>Komentář:" . $komentar . "</td><td><object width='425' height='344'><param name='movie' value='http://www.youtube.com/" . $adresa . "'></param><param name='allowFullScreen' value='true'></param><param name='allowscriptaccess' value='always'></param><embed src='http://www.youtube.com/" . $adresa . " type='application/x-shockwave-flash' allowscriptaccess='always' allowfullscreen='true' width='425' height='344'></embed></td><tr></object><hr></table>";
echo $video;
};
?>