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:
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<?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 );
$tpl ->display( "test3.htm" );
?>
|
样版的写法如下:
templates/test3.htm:
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< html >
< head >
< title >循环嵌套测试</ title >
</ head >
< body >
< table width = "200" border = "0" align = "center" cellpadding = "3" cellspacing = "0" >
<{section name=sec1 loop=$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 >
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test2.php:
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<?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_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 );
$smarty ->display( "test2.htm" );
?>
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test2.htm:
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< html >
< head >
< title >嵌套循环测试</ title >
</ head >
< body >
< table width = "200" border = "0" align = "center" cellpadding = "3" cellspacing = "0" >
<{section name=sec1 loop=$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 >
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test4.php:
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<?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 );
$tpl ->display( 'test4.htm' );
?>
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模版的写法如下:
templates/test4.htm:
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< html >
< head >
< title >横向重复表格测试</ title >
</ head >
< body >
< table width = "500" border = "1" cellspacing = "0" cellpadding = "3" >
< tr >
<{section name=sec1 loop=$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 >
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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:
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<!--{if $bigsize ge '650'}-->
< img src="photo/ <!--{$photo}--> " border="0" width="650" class="product_photo" />
<!--{else}-->
< img src="photo/ <!--{$photo}--> " border="0" class="product_photo" />
<!--{/if}-->
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以前不常用smarty,这两天有个朋友的网站要改;顺手用了一下,还是挺有意思的。
关于capture 的说明:
capture函数的作用是收集模板输出的数据到一个变量里,而不是把它们输出到页面.
任何在 {capture name="foo"}和{/capture}之间的数据都被收到了由函数的名称属性指定的变量里($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.
希望本文所述对大家基于smarty模板的PHP程序设计有所帮助。