Use HTML Tags in WordPress Excerpts

html-tag-excerpts-wordpress.php

function the_content_limit($max_char, $more_link_text = '(more...)', $stripteaser = 0, $more_file = '') {
 $content = get_the_content($more_link_text, $stripteaser, $more_file);
 // remove shortcode
 $content = preg_replace("/\/", '', $content);
 // short codes are applied

$content = apply_filters('the_content', $content);
 $content = str_replace(']]>', ']]>', $content);
 $content = strip_tags($content,'
 ,<b>,<strong>,<a>,<i>,
 ');

if ((strlen($content)>$max_char) && ($espacio = strpos($content, " ", $max_char ))) {
 $content = substr($content, 0, $espacio);
 $content = $content;
 echo "
 ";
 echo $content;
 echo "...";
 echo "

";
 }
 else {
 echo "
 ";
 echo $content;
 echo "

";
 }
 }