count_paragraphs[count number of paragraphs]

count_paragraphs[计算段数]

test.php:
$smarty = new Smarty;
$smarty->assign('articleTitle', "War Dims Hope for Peace. Child's Death Ruins
Couple's Holiday.\n\nMan is Fatally Slain. Death Causes Loneliness, Feeling of Isolation.");
$smarty->display('test.html');

test.html:
{$articleTitle}
{$articleTitle|count_paragraphs}

输出:
War Dims Hope for Peace. Child's Death Ruins Couple's Holiday.
Man is Fatally Slain. Death Causes Loneliness, Feeling of Isolation.
2