這篇文章主要介紹了smarty循環(huán)嵌套用法,結合實例形式分析了Smarty模板嵌套循環(huán)的實現(xiàn)技巧與相關注意事項,需要的朋友可以參考下
test3.php:
<?php
require "main.php";
$forum = array(
array("category_id" => 1, "category_name" => "公告區(qū)",
"topic" => array(
array("topic_id" => 1, "topic_name" => "站務公告")
)
),
array("category_id" => 2, "category_name" => "文學專區(qū)",
"topic" => array(
array("topic_id" => 2, "topic_name" => "好書介紹"),
array("topic_id" => 3, "topic_name" => "奇文共賞")
)
),
array("category_id" => 3, "category_name" => "電腦專區(qū)",
"topic" => array(
array("topic_id" => 4, "topic_name" => "硬件周邊"),
array("topic_id" => 5, "topic_name" => "軟件討論")
)
)
);
$tpl->assign("forum", $forum);
$tpl->display("test3.htm");
?>
樣版的寫法如下:
templates/test3.htm:
<html>
<head>
<title>循環(huán)嵌套測試</title>
</head>
<body>
<table width="200" border="0" align="center" cellpadding="3" cellspacing="0">
<{section name=sec1 loop=$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:
<?php
require_once('./include/db_fns.php');
include_once("./Smarty/libs/Smarty.class.php"); //包含Smarty類文件
$smarty = new Smarty(); //建立Smarty實例對象$Smarty
$smarty->template_dir = "./templates/dedecms";//設置模板目錄
$smarty->compile_dir = "templates/templates_c"; //設置編譯目錄
$smarty->assign("template_url", "./");
$smarty->assign("$site_url", "http://www.jb51.net/");
$smarty->assign("$site_name", "文章管理系統(tǒng)");
$smarty->left_delimiter = "<{"; //設置左邊界符
$smarty->right_delimiter = "}>"; //設置右邊界符
$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);
$smarty->display("test2.htm");
?>
test2.htm:
<html>
<head>
<title>嵌套循環(huán)測試</title>
</head>
<body>
<table width="200" border="0" align="center" cellpadding="3" cellspacing="0">
<{section name=sec1 loop=$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:
<?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);
$tpl->display('test4.htm');
?>
模版的寫法如下:
templates/test4.htm:
<html>
<head>
<title>橫向重復表格測試</title>
</head>
<body>
<table width="500" border="1" cellspacing="0" cellpadding="3">
<tr>
<{section name=sec1 loop=$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>
重點在于 $smarty.section.sec1.rownum 這個 Smarty 變量,在 section 循環(huán)中這個變量會取得從 1 開始的索引值,所以當 rownum 能被 2 除盡時,就輸出 </tr><tr> 使表格換列 (注意!是 </tr> 在前面<tr> 在后面) 。因此數(shù)字 2 就是我們在一列中想要呈現(xiàn)的資料筆數(shù)。各位可以由此去變化其它不同的呈現(xiàn)方式。
運算符有以下這些:
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:
<!--{if $bigsize ge '650'}-->
<img src="photo/<!--{$photo}-->" border="0" width="650" class="product_photo" />
<!--{else}-->
<img src="photo/<!--{$photo}-->" border="0" class="product_photo" />
<!--{/if}-->
以前不常用smarty,這兩天有個朋友的網站要改;順手用了一下,還是挺有意思的。
關于capture 的說明:
capture函數(shù)的作用是收集模板輸出的數(shù)據(jù)到一個變量里,而不是把它們輸出到頁面.
任何在 {capture name="foo"}和{/capture}之間的數(shù)據(jù)都被收到了由函數(shù)的名稱屬性指定的變量里($foo).
收集的信息可以用在特殊變量$smarty里.
例如capture.foo就收集了以上數(shù)據(jù).如果函數(shù)沒有名字屬性,將使用"default".
每個{capture}都必須對應{/capture},也不能嵌套使用capture函數(shù).
希望本文所述對大家基于smarty模板的PHP程序設計有所幫助。