Use this to dynamically register template function plugins. Pass in
the template function name, followed by the PHP function name that
implements it.
动态注册模板函数插件,前两个参数是模板函数名称和执行函数名称。
The php-function callback
impl
can be either (a) a string containing the function name or (b) an array
of the form array(&$object, $method) with
&$object being a reference to an object
and $method being a string containing the
mehod-name or (c) an array of the form array(&$class,
$method) with $class being a classname
and $method being a class method of that
class.
执行函数的格式可以是一个包含函数名称的字符串;也可以是一个array(&$object, $method)数组形式,其中&$object是一个对象的引用,而$method是它的一个方法;还可以是一个array(&$ class, $method)数组形式,其中$class是一个类的名称,$method是类中的一个方法。
$cacheable
and
$cache_attrs
can be omitted in most
cases. See Controlling Cacheability
of Plugins' Output on how to use them properly.
$cacheable 和 $cache_attrs 参数在大多数情况下可以省略。它们的使用方法可以查看控 制插件输出的缓存。