I find out that the post had no ‘post_excerpt’ in database and after I inserted it there manually, it works. So the problem is, why the post didn’t save his excerpt in database?
P.S: sorry for my english
This is my code in sidebas:
<?php query_posts('cat=6&showposts=1'); ?>
<?php if ( have_posts() ) : while ( have_posts() ) : the_post(); ?>
<div class="meta-date"><?php the_date(); ?></div>
<?php
$myExcerpt = get_the_excerpt();
$tags = array("<p>", "</p>");
$myExcerpt = str_replace($tags, "", $myExcerpt);
echo '<p>'.$myExcerpt;
?>
<a href="<?php the_permalink(); ?>">viac tu</a>
<?php endwhile; else: ?>
<p>Sorry, no posts matched your criteria.</p>
<?php endif; ?>
