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今天就跟大家聊聊有關(guān)使用smarty怎么實(shí)現(xiàn)循環(huán)嵌套,可能很多人都不太了解,為了讓大家更加了解,小編給大家總結(jié)了以下內(nèi)容,希望大家根據(jù)這篇文章可以有所收獲。
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(wù)公告") ) ), array("category_id" => 2, "category_name" => "文學(xué)專(zhuān)區(qū)", "topic" => array( array("topic_id" => 2, "topic_name" => "好書(shū)介紹"), array("topic_id" => 3, "topic_name" => "奇文共賞") ) ), array("category_id" => 3, "category_name" => "電腦專(zhuān)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); $tpl->display("test3.htm"); ?>
樣版的寫(xiě)法如下:
templates/test3.htm:
<html> <head> <title>循環(huán)嵌套測(cè)試</title> </head> <body> <table width="200" border="0" align="center" cellpadding="3" cellspacing="0"> <{section name=sec1 loop=$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(lèi)文件 $smarty = new Smarty(); //建立Smarty實(shí)例對(duì)象$Smarty $smarty->template_dir = "./templates/dedecms";//設(shè)置模板目錄 $smarty->compile_dir = "templates/templates_c"; //設(shè)置編譯目錄 $smarty->assign("template_url", "./"); $smarty->assign("$site_url", "https://www.jb51.net/"); $smarty->assign("$site_name", "文章管理系統(tǒng)"); $smarty->left_delimiter = "<{"; //設(shè)置左邊界符 $smarty->right_delimiter = "}>"; //設(shè)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); $smarty->display("test2.htm"); ?>
test2.htm:
<html> <head> <title>嵌套循環(huán)測(cè)試</title> </head> <body> <table width="200" border="0" align="center" cellpadding="3" cellspacing="0"> <{section name=sec1 loop=$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); $tpl->display('test4.htm'); ?>
模版的寫(xiě)法如下:
templates/test4.htm:
<html> <head> <title>橫向重復(fù)表格測(cè)試</title> </head> <body> <table width="500" border="1" cellspacing="0" cellpadding="3"> <tr> <{section name=sec1 loop=$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(diǎn)在于 $smarty.section.sec1.rownum 這個(gè) Smarty 變量,在 section 循環(huán)中這個(gè)變量會(huì)取得從 1 開(kāi)始的索引值,所以當(dāng) rownum 能被 2 除盡時(shí),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?cè)谝涣兄邢胍尸F(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(yùn)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}-->
看完上述內(nèi)容,你們對(duì)使用smarty怎么實(shí)現(xiàn)循環(huán)嵌套有進(jìn)一步的了解嗎?如果還想了解更多知識(shí)或者相關(guān)內(nèi)容,請(qǐng)關(guān)注億速云行業(yè)資訊頻道,感謝大家的支持。
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