Mastering Thinkphp3.2.0----built-in Labels

When using the built-in label, be sure to note that Closed-----single label self-closing, Double-label corresponding closure

Tag learning lies in memory and application

A Comparison of Judgments

1 // the full format of the IF statement 2 <if condition= "$user eq ' crayon little New '" >3 small New 4 <ElseIf condition= "$user eq ' Kurosaki '"/>5  6 <else /> 7 Error 8 </if>

1 //PHP functions can be used in condition conditions2<ifCondition= "mb_substr ($user, 0,3, ' UTF-8 ') eq ' crayon Small ' >3 //using dot syntax in condition conditions, intelligently judging arrays or objects4<ifCondition= "$data. User eq ' crayon little new ' >5 //using the colon syntax in the condition condition, use the object directly6<ifCondition= "$data: User eq ' crayon little new ' >7 //using System variables in condition conditions8<ifCondition= "$Think. Get.user eq ' crayon little new ' >

Switch statement

1 // the value of name, like the IF statement, can be a variable, an array, an object, a function, or a system variable 2 <switch name= "user" >3 < case value= "crayon Little new" > Small new </ case >4 < case value= "kurosaki" > One protection </case >5 <default / > error 6 </switch>

By default, case will automatically add a break statement to prevent penetration, and if you just want to penetrate, you can remove the Break. of course, most do not need to set Break.

1 // Remove break 2 <Case break = "0" > Small new </case >

Compare tags, can be paired with else

1 // eq Label 2 <eq name= "user" value= "1" > equal <else/> Unequal </eq>3//  The other tags and the use of the title are basically the same no more than 4//compare Unified Method 5 <compare type= "eq" name= "user" value= "1" > Equal <else/> Unequal </compare>

Range Judgment label in, notin, between, Notbetween

Determine the label of the variable present--notpresent empty--notempty defined--notdefined

In fact, they can be used in conjunction with else, it is said that not* does not have any effect, at least the actual effect of

1<present name= "Think.get.user" >$_get[' User '] assigned </present>2 //determines whether the variable is empty and null outputs3<EmptyName= "user" >user is a null value </Empty>4 //determines whether the variable is empty and is not empty output5<notempty name= "user" >user NOT NULL </notempty>6 //determines whether a variable is empty, combined7<EmptyName= "user" >8 user is a null value9<Else/>Ten user is not a null value one</Empty> a //determine if a variable is empty, system variable -<EmptyName= "Think.get.user" >$_get[' user '] is null value </Empty> - //determines whether a constant is defined, defines the output the<definedName= "app_path" >app_path constant defined </defined> - //determine if a constant is defined, no output is defined -<notdefined name= "app_path" >app_path constant undefined </notdefined> - //determines whether constants are defined, combined +<definedName= "app_path" > - App_path constants are defined +<Else/> a App_path constants Not defined at</defined>

Two Traversing loops volist tags, Foreach labels, and for tags

Volist Label

Basic:

<ul> <volist name= "data" id= "arr" > <li>{$arr. id}--{$arr. user}--{$arr . Mail} </li> </volist> </ul>

PS: the data in Name= "data" here is the controller to the template to define the variables, to correspond;
Arr in id= "arr" is the array name that will traverse the loop and can be Customized.

Various properties:

1 //offset from the beginning of the first, the starting value of 0,length total number of bars2<volist name= "data" id= "arr"offset= "5" length= "ten ">3<li>{$arr. id}--{$arr. user}--{$arr.Mail}</li>4</volist>5 //MoD for the current remainder, the current index divided by 2 more than 1, output even6<volist name= "data" id= "vo"mod= "2">7<eq name= "mod" value= "1" >8<li>{$vo. id}--{$vo. user}--{$vo.Mail}</li>9</eq>Ten</volist> one //use empty to populate without data a<volist name= "data" id= "vo"empty= "no data"> -<li>{$vo. id}--{$vo. user}--{$vo.Mail}</li> -</volist> the //The empty property does not support HTML direct input, but can be output through a variable - $this->assign (' empty ', ' <span style= ' color:red ' > No data </span> '); -<volist name= "data" id= "vo"Empty="$empty"> - //A variable that iterates through the key output +<volist name= "data" id= "vo"key= "k"> -<li>{$k} -- {$vo. id}--{$vo. user}--{$vo.Mail}</li> +</volist> a //No k specified, can also be output with I variable at<li>{$i} -- {$vo. id}--{$vo. user}--{$vo.Mail}</li> - //key variable, You can directly output the index value, starting from 0 -<li>{$key} -- {$vo. id}--{$vo. user}--{$vo.Mail}</li>

foreach Label

The foreach tag is similar to the volist tag except that the foreach tag is simpler and has no additional attributes.

// only the key property is supported, but {$key} variable supports <ul><foreach name= "data" item= "vo" ><ul>{$vo. id} --{$vo. user}</ul></foreach></ul>

The for label is much simpler.

 1  //  from 1 to 99 loop  2  <for  start= "1" end  = ">3  {$ I }<br/>4  </for  >5  //  full form  Span style= "color: #008080" >6  <for  start= "1" end  = "comparison=" lt "step=" 2 "name=" k ">7  { $i }<br/>8  </for ; 

In addition to the start and end must values, there are three optional values. Comparison is greater than or less than, the default value is LT
(<); name is the name of the loop variable, and the default value is I;step is a stepping value, which defaults to 1.

Three Other labels

1 //define variables in the template, value can be a variable ($user) or a system variable ($Think. get.user)2<assign name= "var" value= "123"/>3{$var}4 //define constants in the template, value values can be variables ($user) or system variables ($Think. get.user)5<DefineName= "my_name" value= "Lee"/>6{$Think.Const.my_name}7 import tag can import JS and CSS files intelligently8 //General Introduction Method9<script type= "text/javascript" src= "__public__/js/index.js" ></script>Ten<link rel= "stylesheet" type= "text/css" onehref= "__public__/css/index.css"/> a //using import imports, JS and CSS are directories -<import type= "js"file= "js.index"/> -<import type= "css"file= "css.index"/> the //BasePath Modify the default path by importing with import -<import type= "js"file= "js.index" basepath= "./common"/> - load load tag to load JS and CSS files intelligently - //Load Using load +<load href= "__public__/js/index.js"/> -<load href= "__public__/css/index.css"/> + The system also provides dedicated JS and CSS tags, specifically for loading a //use a dedicated label at<js href= "__public__/js/index.js"/> -<css href= "__public__/css/index.css"/>

1 //Using PHP tags2<php>3 $a= 1;4 $b= 2;5 Echo $a+$b;6</php>7 //using PHP syntax8<?PHP9 $a= 1;Ten $b= 2; one Echo $a+$b; a?> - If you want to output the Label's content as it is, you can use the literal tag - //Output as-is the<literal> -<php>Echo123;</php> -</literal>

Mastering Thinkphp3.2.0----built-in Labels