How to define variables and constants in the Smarty template

Defining constants is very simple

The method is:

The code is as follows
{$smarty. Const. The constant name you define}

How do you define a variable?

Define variables in Smarty.

{* The following paragraph is equivalent to defining a variable within the template username*}

The code is as follows
{Assign var= "UserName" value= "Myz"}

A variable defined inside the template is shown here: UserName = {$UserName}

Example

code is as follows

&nbs P;

<*assign var= "i" VALUE=0*>&NBSP; <*foreach from= $r _article item=row*>     <div class= "Scont stecont<* $i *>" >&NBSP;        <ul>           <*foreach from= $row ITEM=R*>&NBSP             <li>              <* $r [' title ']*><a href=] article.php? aid=<* $r [' id ']*> ' target= ' _blank ' > ' online reading </a> <a href= ' <* $r [' Attachment ']*> ' target= ' _blank "> Download" </a>              </li> &NBSP          <*/foreach*>&NBSP       </ul>     </div>      <* $i = $i + 1*>  <*/foreach*>

Description

1, the template defines variables, examples are as follows: <{assign var= "I" value=0}> (note: I is integral type, so value=0, do not need to add double quotes, otherwise it will be judged as a string type).

Since foreach does not have a counter like for, it customizes a counter here, counts it in the loop, or does not define a variable in the template page, and when you include the template, a variable i comes in.

2, on the addition of Smarty, tried, Smarty does not support "+ +" (including variables before + +, variables after + +), "+ +" way, so add 1 or use "$i = $i +1" way.

Look at one more instance

The code is as follows:

code is as follows	&nbs P;
<!–{math equation=x x=0 Assign=i}–> <!–{section Smartyvar loop=10}–> <!–{math equation= $i +1 assign=i}–> <br/> <!–{$i}–> <br/& Gt <!–{/section}–> Output Effect: <br/> 1 <br/> <br/> 2 <br/>   <br/> 3 &l T;BR/>   <br/> 4 <br/>   <br/> 5 <br/>   ; <br/> 6 <br/>   <br/> 7 <br/>   <br/> 8 <br/>   <br/> 9 <br/> <br/> <br/>

Note: If $i's initial value is not 0, such as 1, the math equation=x x=1 assign=i can also be written as "math equation=1 assign=i", omitting the X variables. It's 0 o'clock, you can't save, or you'll get a warning message.

Warning:smarty error:math:missing equation parameter

Although it is not a good idea to assign a value to a variable in a template, you can try it the way you want it.