This is used to count the number of paragraphs in a variable.
Example 5.5. count_paragraphs
<?php
$smarty->assign('articleTitle',
                 "War Dims Hope for Peace. Child's Death Ruins Couple's Holiday.\n\n
                 Man is Fatally Slain. Death Causes Loneliness, Feeling of Isolation."
                );
?>
   
Where template is:
{$articleTitle}
{$articleTitle|count_paragraphs}
   
Will output:
War Dims Hope for Peace. Child's Death Ruins Couple's Holiday. Man is Fatally Slain. Death Causes Loneliness, Feeling of Isolation. 2
   See also
   count_characters,
   count_sentences
   and
   count_words.