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Smarty模板編譯引擎 序 I.開(kāi)始 第一章. 什么是Smarty? 第二章. 安裝 要求 基本安裝 擴(kuò)展設(shè)置 II.模板設(shè)計(jì)者篇 第三章.基本語(yǔ)法 注釋 函數(shù) 屬性 第四章.變量 從PHP分配的變量 Associative arrays Array indexes Objects 從配置文件讀取的變量 {$smarty}保留變量 Request variables {$smarty.now} {$smarty.const} {$smarty.capture} {$smarty.config} {$smarty.section} {$smarty.template} 第五章.變量調(diào)節(jié)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.組合修改器 第七章.內(nèi)建函數(shù) 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.自定義函數(shù) 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.調(diào)試控制臺(tái) III.模板程序員篇 第十一章 常量 SMARTY_DIR 第十二章 變量 $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.緩存 Setting Up Caching Multiple Caches Per Page Cache Groups Controlling Cacheability of Plugins' Output 第十五章.高級(jí)特點(diǎn) 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.以插件擴(kuò)展Smarty How Plugins Work Naming Conventions Writing Plugins Template Functions Modifiers Block Functions Compiler Functions Prefilters/Postfilters Output Filters Resources Inserts Ⅳ.高級(jí)特點(diǎn) 第十七章.疑難解答 Smarty/PHP errors 第18章.使用技巧和經(jīng)驗(yàn) 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. 相關(guān)資源 第二十章. 漏洞
文字

Chapter 15. Advanced Features

高級(jí)特點(diǎn)

Table of Contents
Objects 對(duì)象
Prefilters 預(yù)過(guò)濾器
Postfilters 后過(guò)濾器
Output Filters 輸出過(guò)濾器
Cache Handler Function 緩沖處理函數(shù)
Resources 資源

Objects

對(duì)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允許通過(guò)模板訪問(wèn)PHP對(duì)象。有兩種方式來(lái)訪問(wèn)它們。一種是注冊(cè)對(duì)象到模板，然后通過(guò)類似于用戶自定義函數(shù)的形式來(lái)訪問(wèn)它。另一種方法給模板分配對(duì)象,然后通過(guò)訪問(wèn)其它賦值變量類似的方法進(jìn)行訪問(wèn)。第一種方法有一個(gè)很好的模板語(yǔ)法，同時(shí)它作為一個(gè)注冊(cè)對(duì)象被限制為幾個(gè)固定的方法和目標(biāo)，這樣是比較安全的。然而一個(gè)注冊(cè)對(duì)象不能夠在相對(duì)自身數(shù)組里面循環(huán)使用和賦值?？傊?，你根據(jù)你自己的需求來(lái)覺(jué)得選用那種方法，但是使用第一種方法的話，可以讓你的模伴語(yǔ)法達(dá)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.

如果安全選項(xiàng)激活后，就沒(méi)有私有成員或者函數(shù)能夠被訪問(wèn)（以"_"開(kāi)頭）。如果有一個(gè)同名成員或者對(duì)象存在，那么方法將被使用。

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

你可以限制成員和函數(shù)，但是外解可以通過(guò)列舉它們?yōu)橐粋€(gè)第三注冊(cè)變量的數(shù)組的方式來(lái)訪問(wèn)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.

一般情況下，參數(shù)通過(guò)模板傳遞給對(duì)象的方法和自定義函數(shù)獲得參數(shù)的方法是一樣的。一個(gè)混合數(shù)組作為第一個(gè)參數(shù)傳遞，而SMARTY對(duì)象作為第二個(gè)。如果你想像傳統(tǒng)的對(duì)象參數(shù)一樣一次傳遞一個(gè)參數(shù)，設(shè)置第四個(gè)參數(shù)為 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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