smarty循环嵌套用法示例分析
test3.php:
<?php
require "main.php";
$forum = array(
array("category_id" => 1, "categor
本文实例讲述了smarty循环嵌套用法。分享给大家供大家参考,具体如下:
test3.php:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | <?php require "main.php" ; $forum = array ( array ( "category_id" => 1, "category_name" => "公告区" , "topic" => array ( array ( "topic_id" => 1, "topic_name" => "站务公告" ) ) ), array ( "category_id" => 2, "category_name" => "文学专区" , "topic" => array ( array ( "topic_id" => 2, "topic_name" => "好书介绍" ), array ( "topic_id" => 3, "topic_name" => "奇文共赏" ) ) ), array ( "category_id" => 3, "category_name" => "电脑专区" , "topic" => array ( array ( "topic_id" => 4, "topic_name" => "硬件周边" ), array ( "topic_id" => 5, "topic_name" => "软件讨论" ) ) ) ); $tpl ->assign( "forum" , $forum ); $tpl ->display( "test3.htm" ); ?> |
样版的写法如下:
templates/test3.htm:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | <html> <head> <title>循环嵌套测试</title> </head> <body> <table width= "200" border= "0" align= "center" cellpadding= "3" cellspacing= "0" > <{section name=sec1 loop= $forum }> <tr> <td colspan= "2" ><{ $forum [sec1].category_name}></td> </tr> <{section name=sec2 loop= $forum [sec1].topic}> <tr> <td width= "25" > </td> <td width= "164" ><{ $forum [sec1].topic[sec2].topic_name}></td> </tr> <{/section}> <{/section}> </table> </body> </html> |
test2.php:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 | <?php require_once ( './include/db_fns.php' ); include_once ( "./Smarty/libs/Smarty.class.php" ); //包含Smarty类文件 $smarty = new Smarty(); //建立Smarty实例对象$Smarty $smarty ->template_dir = "./templates/dedecms" ; //设置模板目录 $smarty ->compile_dir = "templates/templates_c" ; //设置编译目录 $smarty ->assign( "template_url" , "./" ); $smarty ->assign( "$site_url" , "http://www.phpstudy.net/" ); $smarty ->assign( "$site_name" , "文章管理系统" ); $smarty ->left_delimiter = "<{" ; //设置左边界符 $smarty ->right_delimiter = "}>" ; //设置右边界符 $db_conn = db_connect(); $query = "SELECT cat_ID,cat_name FROM categories ORDER BY cat_ID DESC" ; $result = mysql_query( $query ); $i = 5; while (( $row = mysql_fetch_array( $result )) && $i > 0) { $query2 ="SELECT ID, post_title, post_date FROM post WHERE post.post_category = $row [cat_ID] AND post_status <> 'unpbulish' ORDER BY post_date DESC"; $result2 =mysql_query( $query2 ); $i = 5; while (( $row2 = mysql_fetch_array( $result2 )) && $i > 0) { $row2 [post_date]= date ( 'm-d' , strtotime ( $row2 [post_date])); $category = array ( "cat_ID" => "$row[cat_ID]" , "cat_name" => "$row[cat_name]" , "post" => array ( "ID" => "$row2[ID]" , "post_title" => "$row2[post_title]" , "post_category" => "$row2[post_category]" , "post_date" => "$row2[post_date]" )); $i --; } } $smarty ->assign( "forum" , $category ); $smarty ->display( "test2.htm" ); ?> |
test2.htm:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | <html> <head> <title>嵌套循环测试</title> </head> <body> <table width= "200" border= "0" align= "center" cellpadding= "3" cellspacing= "0" > <{section name=sec1 loop= $forum }> <tr> <td colspan= "2" ><{ $forum [sec1].cat_id}></td> </tr> <{section name=sec2 loop= $forum [sec1].post}> <tr> <td width= "25" > </td> <td width= "164" ><{ $forum [sec1].post[sec2].post_title}></td> </tr> <{/section}> <{/section}> </table> </body> </html> |
test4.php:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | <?php require "main.php" ; $my_array = array ( array ( "value" => "0" ), array ( "value" => "1" ), array ( "value" => "2" ), array ( "value" => "3" ), array ( "value" => "4" ), array ( "value" => "5" ), array ( "value" => "6" ), array ( "value" => "7" ), array ( "value" => "8" ), array ( "value" => "9" )); $tpl ->assign( "my_array" , $my_array ); $tpl ->display( 'test4.htm' ); ?> |
模版的写法如下:
templates/test4.htm:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | <html> <head> <title>横向重复表格测试</title> </head> <body> <table width= "500" border= "1" cellspacing= "0" cellpadding= "3" > <tr> <{section name=sec1 loop= $my_array }> <td><{ $my_array [sec1].value}></td> <{ if $smarty .section.sec1.rownum is div by 2}> </tr> <tr> <{/ if }> <{/section}> </tr> </table> </body> </html> |
重点在于 $smarty.section.sec1.rownum 这个 Smarty 变量,在 section 循环中这个变量会取得从 1 开始的索引值,所以当 rownum 能被 2 除尽时,就输出 </tr><tr> 使表格换列 (注意!是 </tr> 在前面<tr> 在后面) 。因此数字 2 就是我们在一列中想要呈现的资料笔数。各位可以由此去变化其它不同的呈现方式。
运算符有以下这些:
eq、ne、neq、gt、lt、lte、le、gte、ge、is even、is odd、is not even、is not odd、not、mod、div by、even by、odd by
示例:
1 2 3 4 5 | <!--{ if $bigsize ge '650' }--> <img src= "photo/<!--{$photo}-->" border= "0" width= "650" class = "product_photo" /> <!--{ else }--> <img src= "photo/<!--{$photo}-->" border= "0" class = "product_photo" /> <!--{/ if }--> |
以前不常用smarty,这两天有个朋友的网站要改;顺手用了一下,还是挺有意思的。
关于capture 的说明:
capture函数的作用是收集模板输出的数据到一个变量里,而不是把它们输出到页面.
任何在 {capture name="foo"}和{/capture}之间的数据都被收到了由函数的名称属性指定的变量里($foo).
收集的信息可以用在特殊变量$smarty里.
例如capture.foo就收集了以上数据.如果函数没有名字属性,将使用"default".
每个{capture}都必须对应{/capture},也不能嵌套使用capture函数.
更多关于Smarty相关内容感兴趣的读者可查看本站专题:《smarty模板入门基础教程》、《PHP模板技术总结》、《PHP基于pdo操作数据库技巧总结》、《PHP运算与运算符用法总结》、《PHP网络编程技巧总结》、《PHP基本语法入门教程》、《php面向对象程序设计入门教程》、《php字符串(string)用法总结》、《php+mysql数据库操作入门教程》及《php常见数据库操作技巧汇总》
希望本文所述对大家基于smarty模板的PHP程序设计有所帮助。