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Smarty模板編譯引擎 序 I.開始 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
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Resources資源

Resource plugins are meant as a generic way of providing template sources or PHP script components to Smarty. Some examples of resources: databases, LDAP, shared memory, sockets, and so on.
資源插件被認(rèn)為是為Smarty提供模板源或PHP腳本組件的一種普通方式。一些資源例子如:數(shù)據(jù)庫、LDAP、共享內(nèi)存、sockets（套接字）等等。

There are a total of 4 functions that need to be registered for each type of resource. Every function will receive the requested resource as the first parameter and the Smarty object as the last parameter. The rest of parameters depend on the function.
需要為每一種類型的資源注冊(cè)四個(gè)函數(shù)。每一個(gè)函數(shù)將接收被請(qǐng)求的資源作為第一個(gè)參數(shù)，Smarty對(duì)象作為最后一個(gè)參數(shù)。剩余的參數(shù)取決于函數(shù)的不同。

bool smarty_resource_ name _source (string $rsrc_name, string &$source, object &$smarty)

bool smarty_resource_ name _timestamp (string $rsrc_name, int &$timestamp, object &$smarty)

bool smarty_resource_ name _secure (string $rsrc_name, object &$smarty)

bool smarty_resource_ name _trusted (string $rsrc_name, object &$smarty)

The first function is supposed to retrieve the resource. Its second parameter is a variable passed by reference where the result should be stored. The function is supposed to return true if it was able to successfully retrieve the resource and false otherwise.
第一個(gè)函數(shù)將會(huì)檢索資源。它的第二個(gè)參數(shù)是一個(gè)參考引用變量，結(jié)果值會(huì)存放到該變量里面。如果此函數(shù)能成功的檢索到資源，將會(huì)返回true，否則返回false。

The second function is supposed to retrieve the last modification time of the requested resource (as a UNIX timestamp). The second parameter is a variable passed by reference where the timestamp should be stored. The function is supposed to return true if the timestamp could be succesfully determined, and false otherwise.
第二個(gè)函數(shù)將會(huì)檢索被請(qǐng)求資源的最后修改時(shí)間（UNIX時(shí)間戳）。它的第二個(gè)參數(shù)是一個(gè)參考引用變量，時(shí)間戳值會(huì)存放到該變量里面。如果此函數(shù)能成功的確定時(shí)間戳，將會(huì)返回true，否則返回false。

The third function is supposed to return true or false, depending on whether the requested resource is secure or not. This function is used only for template resources but should still be defined.
第三個(gè)函數(shù)將會(huì)返回true或false，取決于被請(qǐng)求資源是否安全。這個(gè)函數(shù)僅用于模板資源，但仍應(yīng)被定義。

The fourth function is supposed to return true or false, depending on whether the requested resource is trusted or not. This function is used for only for PHP script components requested by {include_php} tag or {insert} tag with src attribute. However, it should still be defined even for template resources.
第四個(gè)函數(shù)將會(huì)返回true或false，取決于被請(qǐng)求資源是否被信任。這個(gè)函數(shù)僅用于被 {include_php} 或 {insert} 標(biāo)記以 src 屬性請(qǐng)求的PHP腳本組件。但仍應(yīng)被定義，甚至用于模板資源也不例外。

See also register_resource(), unregister_resource().

Example 16-10. resource plugin資源插件 

<?php

function smarty_resource_db_source($tpl_name, &$tpl_source, &$smarty)
{
 // do database call here to fetch your template,
 // populating $tpl_source
 $sql = new SQL;
 $sql->query("select tpl_source
 from my_table
 where tpl_name='$tpl_name'");
 if ($sql->num_rows) {
 $tpl_source = $sql->record['tpl_source'];
 return true;
 } else {
 return false;
 }
}

function smarty_resource_db_timestamp($tpl_name, &$tpl_timestamp, &$smarty)
{
 // do database call here to populate $tpl_timestamp.
 $sql = new SQL;
 $sql->query("select tpl_timestamp
 from my_table
 where tpl_name='$tpl_name'");
 if ($sql->num_rows) {
 $tpl_timestamp = $sql->record['tpl_timestamp'];
 return true;
 } else {
 return false;
 }
}

function smarty_resource_db_secure($tpl_name, &$smarty)
{
 // assume all templates are secure
 return true;
}

function smarty_resource_db_trusted($tpl_name, &$smarty)
{
 // not used for templates
}
?>
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