Chapter 5. Variable Modifiers[变量调节器]

Variable modifiers can be applied to variables, custom functions or strings.
To apply a modifier, specify the value followed by the | (pipe) and the modifier name.
A modifier may accept additional parameters that affect its behavior.
These parameters follow the modifer name and are separated by : (colon).

变量调节器用于变量,自定义函数和字符串.
请使用'|'符号和调节器名称应用调节器.
变量调节器由赋予的参数值决定其行为.
参数由':'符号分开.

{* Uppercase the title *}
{* 标题大写 *}
<h2>{$title|upper}</h2>

{* Truncate the topic to 40 characters use ... at the end *}
{* 取其前40个字符 *}
Topic: {$topic|truncate:40:"..."}

{* format a literal string *}
{* 格式化文字串 *}
{"now"|date_format:"%Y/%m/%d"}

{* apply modifier to a custom function *}
{* 在自定义函数里应用调节器 *}
{mailto|upper address="me@domain.dom"}

If you apply a modifier to an array variable instead of a single value variable, the modifier will be applied to every value in that array.
If you really want the modifier to work on an entire array as a value, you must prepend the modifier name with an @ symbol like so: {$articleTitle|@count} (this will print out the number of elements in the $articleTitle array.)

如果你给数组变量应用单值变量的调节,结果是数组的每个值都被调节.
如果你只想要调节器用一个值调节整个数组,你必须在调节器名字前加上@符号.
例如: {$articleTitle|@count}(这将会在 $articleTitle 数组里输出元素的数目)????

index.php:

$smarty = new Smarty;
$smarty->assign('articleTitle', 'Police begin campaign to rundown jaywalkers.');
$smarty->display('index.tpl');

index.tpl:

{$articleTitle}
{$articleTitle|capitalize}

OUTPUT:

Police begin campaign to rundown jaywalkers.
Police Begin Campaign To Rundown Jaywalkers.