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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

characters

Modifiers修正器

Modifiers are little functions that are applied to a variable in the template before it is displayed or used in some other context. Modifiers can be chained together.
修正器是一些短小的函数，这些函数被应用于模版中的一个变量，然后变量再显示或用于其他的一些文档。我们可以把修正器链接起来。

mixed smarty_modifier_ name (mixed $value, [mixed $param1, ...])

The first parameter to the modifier plugin is the value on which the modifier is supposed to operate. The rest of the parameters can be optional, depending on what kind of operation is supposed to be performed.
修正器插件的第一个参数是不可缺少的。剩余的参数是可选的，它们的有无取决于期望执行哪一种操作。

The modifier has to return the result of its processing.
修正器必须有返回值。

See also register_modifier(), unregister_modifier().
也可参考register_modifier(), unregister_modifier().

Example 16-3. simple modifier plugin简单修正器插件

This plugin basically aliases one of the built-in PHP functions. It does not have any additional parameters.
这个插件主要目的是用另一个名字替换一个内置PHP函数的名字。他没有任何多余的参数。

<?php

function smarty_modifier_capitalize($string)
{
 return ucwords($string);
}
?>

Example 16-4. more complex modifier plugin更加复杂的修正器插件

<?php

function smarty_modifier_truncate($string, $length = 80, $etc = '...',
 $break_words = false)
{
 if ($length == 0)
 return '';

 if (strlen($string) > $length) {
 $length -= strlen($etc);
 $fragment = substr($string, 0, $length+1);
 if ($break_words)
 $fragment = substr($fragment, 0, -1);
 else
 $fragment = preg_replace('/\s+(\S+)?$/', '', $fragment);
 return $fragment.$etc;
 } else
 return $string;
}
?>

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