Smarty循环实例详解

在Smarty应用，常常会遇到循环问题，在这里做一个详细的说明。首先是参数说明： loop 属性： the loop variable only determines the number of times to loop loop 循环所赋的变量仅决定循环的次数，可以任意！！！ div 属性： the name of the div can be

在Smarty应用，常常会遇到循环问题，在这里做一个详细的说明。首先是参数说明：
loop 属性：
the loop variable only determines the number of times to loop
loop 循环所赋的变量仅决定循环的次数，可以任意！！！
div 属性：
the name of the div can be anything you like,and it is used to reference
the data within the div
div 属性的值可以是任意的，而且在循环中只能使用该名字作为替换
数据，也就是[div]里的值。
下面给出示例来具体说明应用方法（PHP 代表PHP 部分代码，HTML 代表模板
内容，OUTPUT 代表输出内容）：
1、一维索引数组循环。

PHP代码

1. $suoyin1 = array ( '1000' , '1001' , '1002' );
2. $smarty ->assign( 'suoyin1' , $suoyin1 );

XML/HTML代码

1. {div name = n1 loop =$suoyin1} >
2. id: {$suoyin1[n1]} >
3. {/div} >

OUTPUT：
id:1000 id:1001 id:1002
2、如果多个数组包含相同数量的元素，可以将他们合并写出，这里说明了loop 只代
表循环次数。

PHP代码

1. $id = array ( '1000' , '1001' , '1002' );
2. $name = array ( 'John Smith' , 'Jack Jones' , 'Jane Munson' );
3. $address = array ( '253 N 45th' , '417 Mulberry ln' , '5605 apple st' );
4. $smarty ->assign( 'id' , $id );
5. $smarty ->assign( 'name' , $name );
6. $smarty ->assign( 'address' , $address );

XML/HTML代码

1. {div name = h1 loop =$name} >
2. id: {$id[h1]} >
3. name: {$name[h1]} >
4. address: {$address[h1]} >
5. {/div} >

OUTPUT：
id:1000 name:John Smith address:253 N 45th
id:1001 name:Jack Jones address:417 Mulberry ln
id:1002 name:Jane Munson address:5605 apple st
3、一维关联数组不要循环。

PHP代码

1. $bst = array ( 'id' => '1000' , 'name' => 'John Smith' , 'address' => '253 N 45th' );
2. $smarty ->assign( 'bst' , $bst );

XML/HTML代码

1. id: {$bst.id} >
2. name: {$bst.name} >
3. address: {$bst.address} >

OUTPUT：
id:1000 name:John Smith address:253 N 45th
4、二维关联数组，用到基本循环。

PHP代码

1. $erwei = array ( array ( 'id' => '1000' , 'name' => 'John Smith' , 'address' => '253 N 45th' ),
2. array ( 'id' => '1001' , 'name' => 'Jack Jones' , 'address' => '417 Mulberry ln' ),
3. array ( 'id' => '1002' , 'name' => 'Jane Munson' , 'address' => '5605 apple st' ));
4. $smarty ->assign( 'erwei' , $erwei );

XML/HTML代码

1. {div name = h2 loop =$erwei} >
2. id: {$erwei[h2].id} >
3. name: {$erwei[h2].name} >
4. address: {$erwei[h2].address} >
5. {/div} >

OUTPUT：
id:1000 name:John Smith address:253 N 45th
id:1001 name:Jack Jones address:417 Mulberry ln
id:1002 name:Jane Munson address:5605 apple st
5、divelse 控制当没变量的时候显示，比如你打开的文章（产品）不存在或已删
除！

XML/HTML代码

1. {div name = customer loop =$custid} >
2. id: {$custid[customer]} >
3. {divelse} >
4. there are no values in $custid.
5. {/div} >

6、div 多层循环

PHP代码

1. $id = array (1001,1002,1003);
2. $smarty ->assign( 'custid' , $id );
3. $fullnames = array ( 'John Smith' , 'Jack Jones' , 'Jane Munson' );
4. $smarty ->assign( 'name' , $fullnames );
5. $addr = array ( '253 N 45th' , '417 Mulberry ln' , '5605 apple st' );
6. $smarty ->assign( 'address' , $addr );
7. $types = array (
8. array ( 'home phone' , 'cell phone' , 'e-mail' ),
9. array ( 'home phone' , 'web' ),
10. array ( 'cell phone' )
11. );
12. $smarty ->assign( 'contact_type' , $types );
13. $info = array (
14. array ( '555-555-5555' , '666-555-5555' , '[e-mail]' ),
15. array ( '123-456-4' , 'www.example.com' ),
16. array ( '0457878' )
17. );
18. $smarty ->assign( 'contact_info' , $info );

XML/HTML代码

1. {div name = customer loop =$custid} >
2. id: {$custid[customer]} >
3. name: {$name[customer]} >
4. address: {$address[customer]} >
5. {div name = contact loop =$contact_type[customer]} >
6. {$contact_type[customer][contact]} > : {$contact_info[customer][contact]} >
7. {/div} >
8. {/div} >

OUTPUT：
id: 1001
name: John Smith
address: 253 N 45th
home phone: [phone]
cell phone: [phone]
e-mail:[e-mail]
id: 1002
name: 232
address: 417 Mulberry ln
home phone: [phone]
web:www.example.com
3
id: 1003
name: Jane Munson
address: 5605 apple st
cell phone: [phone]
7、多层嵌套循环：这里联系方式还嵌套了一个一维数组，有cell phone、home phone
和email。注意嵌套的一维数组不要循环！！内嵌套写法$mu[sec1].contact.home。

PHP代码

1. $mu = array ( array ( 'id' => '1000' ,
2. 'name' => 'John Smith' ,
3. 'address' => '253 N 45th' ,
4. 'contact' => array ( 'home' => '555-55-555' , 'bell' => '1111111' )
5. ),
6. array ( 'id' => '1001' ,
7. 'name' => 'Jack Jones' ,
8. 'address' => '417 Mulberry ln' ,
9. 'contact' => array ( 'home' => '444-44-444' , 'bell' => '2222222' )
10. ),
11. array ( 'id' => '1002' ,
12. 'name' => 'Jane Munson' ,
13. 'address' => '5605 apple st' ,
14. 'contact' => array ( 'home' => '333-33-333' , 'bell' => '4444444' )
15. )
16. );
17. $smarty ->assign( 'mu' , $mu );

XML/HTML代码

1. {div name = sec1 loop =$mu} >
2. id: {$mu[sec1].id} >
3. name: {$mu[sec1].name} >
4. address: {$mu[sec1].address} >
5. array: {$mu[sec1].contact} >
6. home phone: {$mu[sec1].contact.home} >
7. cell phone: {$mu[sec1].contact.bell} >
8. ====================================================================
9. {/div} >

OUTPUT：
id:1000
name: John Smith
address:253 N 45th
array:Array
home phone:[phone]
cell phone:[phone] =================================================id:1001
name:Jack Jones
address:417 Mulberry ln
array:Array
home phone:[phone]
cell phone:[phone] ================================================id:1002
name:Jane Munson
address:5605 apple st
array:Array
home phone:[phone]
cell phone:[phone]
8 、多层嵌套循环。内部嵌套二维数组， 加个循环！！ 内嵌套写法
$forum[sec1].topic[sec2].topic_name。

PHP代码

1. $forum = array ( array ( "category_id" => 1,
2. "category_name" => "公告区" ,
3. "topic" => array (
4. array ( "topic_id" => 1, "topic_name" => "站务公告" )
5. )
6. ),
7. array ( "category_id" => 2,
8. "category_name" => "文学专区" ,
9. "topic" => array (
10. array ( "topic_id" => 2, "topic_name" => "好书介绍" ),
11. array ( "topic_id" => 3, "topic_name" => "奇文共赏" )
12. )
13. ),
14. array ( "category_id" => 3,
15. "category_name" => "计算机专区" ,
16. "topic" => array (
17. array ( "topic_id" => 4, "topic_name" => "硬件外围" ),
18. array ( "topic_id" => 5, "topic_name" => "软件讨论" )
19. )
20. )
21. );
22. $smarty ->assign( "forum" , $forum );

XML/HTML代码

1. {div name = sec1 loop =$forum} >
2. {$forum[sec1].category_name} >
3. {div name = sec2 loop =$forum[sec1].topic} >
4. {$forum[sec1].topic[sec2].topic_name} >
5. {/div} >
6. {/div} >

OUTPUT：
公告区
站务公告
文学专区
好书介绍
奇文共赏
计算机专区
硬件外围
软件讨论
9、div 和forech 循环的用法比较

PHP代码

1. $array2 = array (
2. array ( "index1" => "data1-1" , "index2" => "data1-2" , "index3" => "data1-3" ),
3. array ( "index1" => "data2-1" , "index2" => "data2-2" , "index3" => "data2-3" ),
4. array ( "index1" => "data3-1" , "index2" => "data3-2" , "index3" => "data3-3" ),
5. array ( "index1" => "data4-1" , "index2" => "data4-2" , "index3" => "data4-3" ),
6. array ( "index1" => "data5-1" , "index2" => "data5-2" , "index3" => "data5-3" )
7. );
8. $smarty ->assign( "array2" , $array2 );

XML/HTML代码

1. foreach
2. {foreach item = index2 from =$array2} >
3. {foreach key = key2 item = item2 from =$index2} >
4. {$key2} > : {$item2} >
5. {/foreach} >
6. {/foreach} >
7. div
8. {div name = sec2 loop =$array2} >
9. index1: {$array2[sec2].index1} >
10. index2: {$array2[sec2].index2} >
11. index3: {$array2[sec2].index3} >
12. {/div} >

OUTPUT：
index1: data1-1 index2: data1-2 index3: data1-3 index1: data2-1 index2: data2-2 index3: data2-3
index1: data3-1 index2: data3-2 index3: data3-3 index1: data4-1 index2: data4-2 index3: data4-3
index1: data5-1 index2: data5-2 index3: data5-3
10、显示数据库的资料
表posts 文章列表
字段
pid INT(10) AUTO_INCREMENT 文章ID
cid INT(10) 分类ID
ptitle varchar(100) 文章标题
pcontent text 文章内容
ptime INT(11) 文章发表日期
和简单关联二维数组一样。

PHP代码

1. $conn =mysql_connect( 'localhost' , 'root' , 'pass' );
2. mysql_select_db( 'dbname' , $conn );
3. mysql_query( "SET NAMES 'GBK'" );
4. $sql = "SELECT * FROM posts" ;
5. $result =mysql_query( $sql );
6. $posts =mysql_fetch_array( $result );
7. $smarty ->assign( 'posts' , $posts );

XML/HTML代码

1. {div name = h loop =$posts} >
2. 标题: {$posts[h].ptitle} >
3. 内容: {$posts[h].pcontent} >
4. 发布时间: {$posts[h].ptime|date_format:"%Y-%m-%d %H:%M:%S"} >
5. {/div} >

OUTPUT：
标题：标题一内容：内容一发布时间：2008-1-1 10:20:15
标题：标题二内容：内容二发布时间：2008-4-1 8:1:12
表category 文章分类表
cid 文章分类ID
cname 分类名
这里要循环出所有分类，以及分类下的所有帖子，也就是一个嵌套循环。
PHP

PHP代码

1. $sql = "SELECT * FROM category" ;
2. $result =mysql_query( $sql );
3. $cat = array (); //第一层数组
4. while ( $array1 =mysql_fetch_array( $result )){ //第一层数据
5. $sql2 = "SELECT * FROM posts WHERE cid={$cat[cid]}" ;
6. $rs =mysql_query( $sql2 );
7. $posts = array (); //第二层数组
8. while ( $array2 =mysql_fetch_array( $rs )){ //第二层数据
9. array_push ( $posts , $array2 ); //压入数组posts 中
10. }
11. $array1 [ 'posts' ]= $posts ; // 把第二层数组指定为第一层数据中的一个成员
12. array_push ( $cat , $array1 ); //把数据放入数组$cat 中
13. }
14. $smarty ->assign( 'cat' , $cat );

XML/HTML代码

1. {div name = sec1 loop =$cat} >
2. 分类： {$cat[sec1].cname} >
3. {div name = sec2 loop =$cat[sec1].posts} >
4. 标题: {$cat[sec1].posts[sec2].ptitle} >
5. 内容: {$cat[sec1].posts[sec2].pcontent} >
6. 发布时间: {$cat[sec1].posts[sec2].pcontent|date_format:"%Y-%m-%d %H:%M:%S"} >
7. {/div} >

OUTPUT：
分类：分类1
标题：标题一内容：内容一发布时间：2008-1-1 10:20:15
标题：标题二内容：内容二发布时间：2008-4-1 8:1:12
分类：分类2
标题：标题三内容：内容三发布时间：2008-1-1 10:20:15
标题：标题四内容：内容四发布时间：2008-4-1 8:1:12