This is used to count the number of words in a variable. 计算变量里的词数 。
Example 5-7. count_words
index.php: $smarty = new Smarty; $smarty->assign('articleTitle', 'Dealers Will Hear Car Talk at Noon.'); $smarty->display('index.tpl'); index.tpl: {$articleTitle} {$articleTitle|count_words} OUTPUT: Dealers Will Hear Car Talk at Noon. 7