lower [小写]

lower [小写] 

test.php:
$smarty = new Smarty;
$smarty->assign('articleTitle', '两个罪犯逃避绞索，陪审团洪。');
$ smarty->display('test.html');

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

输出：
两名罪犯逃避绞索，陪审团洪.
两名罪犯逃避绞索，陪审团悬而未决。