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: 序; Getting Started 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

Smarty - the compiling PHP template engine
Prev　来源：PHP中文社区	Chapter 5. Variable Modifiers[变量调节器]	Next

string_format
字符串格式化

Parameter Position参数位置	Type参数类型	Required必需	Default默认	Description描述
1	string	Yes	n/a	This is what format to use. (sprintf) 使用的格式化方式

This is a way to format strings, such as decimal numbers and such. Use the syntax for sprintf for the formatting.

是一种格式化字符串的方法.例如格式化为十进制数等等.使用sprintf语法格式化

Example 5-18. string_format
字符串格式化

index.php:

$smarty = new Smarty;
$smarty->assign("number", 23.5787446);
$smarty->display("index.tpl");

index.tpl:

{$number}
{$number|string_format:"%.2f"}
{$number|string_format:"%d"}

OUTPUT:

23.5787446
23.58
24

string_format 字符串格式化

string_format
字符串格式化