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Smarty模板编译引擎序 I.开始第一章. 什么是Smarty? 第二章. 安装要求基本安装扩展设置 II.模板设计者篇第三章.基本语法注释函数属性第四章.变量从PHP分配的变量 Associative arrays Array indexes Objects 从配置文件读取的变量 {$smarty}保留变量 Request variables {$smarty.now} {$smarty.const} {$smarty.capture} {$smarty.config} {$smarty.section} {$smarty.template} 第五章.变量调节器 capitalize count_characters cat count_paragraphs count_sentences count_words date_format default escape indent lower nl2br regex_replace replace spacify string_format strip strip_tags truncate upper wordwrap 第六章.组合修改器第七章.内建函数 capture config_load foreach include include_php insert if ldelim literal php section index index_prev index_next iteration first last rownum loop show total strip 第八章.自定义函数 assign counter cycle debug eval fetch html_checkboxes html_image html_options html_radios html_select_date html_select_time html_table math mailto popup_init popup textformat 第九章.配置文件第十章.调试控制台 III.模板程序员篇第十一章常量 SMARTY_DIR 第十二章变量 $template_dir $compile_dir $config_dir $plugins_dir $debugging $debug_tpl $debugging_ctrl $global_assign $undefined $autoload_filters $compile_check $force_compile $caching $cache_dir $cache_lifetime $cache_handler_func $cache_modified_check $config_overwrite $config_booleanize $config_read_hidden $config_fix_newlines $default_template_handler_func $php_handling $security $secure_dir $security_settings $trusted_dir $left_delimiter $right_delimiter $compiler_class $request_vars_order $compile_id $use_sub_dirs $default_modifiers $default_resource_type 第十三章.方法 append append_by_ref assign assign_by_ref clear_all_assign clear_all_cache clear_assign clear_cache clear_compiled_tpl clear_config config_load display fetch get_config_vars get_registered_object get_template_vars is_cached load_filter register_block register_compiler_function register_function register_modifier register_object register_outputfilter register_postfilter register_prefilter register_resource trigger_error template_exists unregister_block unregister_compiler_function unregister_function unregister_modifier unregister_object unregister_outputfilter unregister_postfilter unregister_prefilter unregister_resource 第十四章.缓存 Setting Up Caching Multiple Caches Per Page Cache Groups Controlling Cacheability of Plugins' Output 第十五章.高级特点 Objects Prefilters Postfilters Output Filters Cache Handler Function Resources Templates from $template_dir Templates from any directory Templates from other sources Default template handler function 第十六章.以插件扩展Smarty How Plugins Work Naming Conventions Writing Plugins Template Functions Modifiers Block Functions Compiler Functions Prefilters/Postfilters Output Filters Resources Inserts Ⅳ.高级特点第十七章.疑难解答 Smarty/PHP errors 第18章.使用技巧和经验 Blank Variable Handling Default Variable Handling Passing variable title to header template Dates WAP/WML Componentized Templates Obfuscating E-mail Addresses 第十九章. 相关资源第二十章. 漏洞

文字

Smarty - the compiling PHP template engine
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Chapter 15. Advanced Features

高级特点

Table of Contents
Objects 对象
Prefilters 预过滤器
Postfilters 后过滤器
Output Filters 输出过滤器
Cache Handler Function 缓冲处理函数
Resources 资源

Objects

对象

Smarty allows access to PHP objects through the templates. There are two ways to access them. One way is to register objects to the template, then use access them via syntax similar to custom functions. The other way is to assign objects to the templates and access them much like any other assigned variable. The first method has a much nicer template syntax. It is also more secure, as a registered object can be restricted to certain methods or properties. However, a registered object cannot be looped over or assigned in arrays of objects, etc. The method you choose will be determined by your needs, but use the first method whenever possible to keep template syntax to a minimum.

SMARTY允许通过模板访问PHP对象。有两种方式来访问它们。一种是注册对象到模板，然后通过类似于用户自定义函数的形式来访问它。另一种方法给模板分配对象,然后通过访问其它赋值变量类似的方法进行访问。第一种方法有一个很好的模板语法，同时它作为一个注册对象被限制为几个固定的方法和目标，这样是比较安全的。然而一个注册对象不能够在相对自身数组里面循环使用和赋值。总之，你根据你自己的需求来觉得选用那种方法，但是使用第一种方法的话，可以让你的模伴语法达到最小。

If security is enabled, no private methods or functions can be accessed (begininning with "_"). If a method and property of the same name exist, the method will be used.

如果安全选项激活后，就没有私有成员或者函数能够被访问（以"_"开头）。如果有一个同名成员或者对象存在，那么方法将被使用。

You can restrict the methods and properties that can be accessed by listing them in an array as the third registration parameter.

你可以限制成员和函数，但是外解可以通过列举它们为一个第三注册变量的数组的方式来访问它。

By default, parameters passed to objects through the templates are passed the same way custom functions get them. An associative array is passed as the first parameter, and the smarty object as the second. If you want the parameters passed one at a time for each argument like traditional object parameter passing, set the fourth registration parameter to false.

一般情况下，参数通过模板传递给对象的方法和自定义函数获得参数的方法是一样的。一个混合数组作为第一个参数传递，而SMARTY对象作为第二个。如果你想像传统的对象参数一样一次传递一个参数，设置第四个参数为 FALSE即可。

Example 15-1. using a registered or assigned object

<?php
// the object

class My_Object() {
	function meth1($params, &$smarty_obj) {
		return "this is my meth1";
	}
}

$myobj = new My_Object;
// registering the object (will be by reference)
$smarty->register_object("foobar",$myobj);
// if we want to restrict access to certain methods or properties, list them
$smarty->register_object("foobar",$myobj,array('meth1','meth2','prop1'));
// if you want to use the traditional object parameter format, pass a boolean of false
$smarty->register_object("foobar",$myobj,null,false);

// We can also assign objects. Assign by ref when possible.
$smarty->assign_by_ref("myobj", $myobj);

$smarty->display("index.tpl");
?>

TEMPLATE:

{* access our registered object *}
{foobar->meth1 p1="foo" p2=$bar}

{* you can also assign the output *}
{foobar->meth1 p1="foo" p2=$bar assign="output"}
the output was {$output)

{* access our assigned object *}
{$myobj->meth1("foo",$bar)}

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