Get Smarty

Donate

Donate Bitcoin Bitcoin
Paypal

Smarty Icon

You may use the Smarty logo according to the trademark notice.

Smarty Template Engine Smarty Template Engine

For sponsorship, advertising, news or other inquiries, contact us at:

Sites Using Smarty

Largest classified with thousands of ads at Shoppok

Buy cheap eyeglasses from Cheapglasses123.com and save up to 80%.

Buy wedding dresses on SiteSteer.com - Best Online Wedding Dress Store

Buy prescription glasses from www.australiaglasses.com and save.

Cheap Glasses Now On Sale at GlassesPeople.com. Starts At $7.95.

Where to buy discount wedding dresses and cheap smart dresses free shipping - Weddingdresstrend.com

Find Wedding Dresses Online at Canada from Ca-dresses.com

{eval}

{eval} is used to evaluate a variable as a template. This can be used for things like embedding template tags/variables into variables or tags/variables into config file variables.

If you supply the assign attribute, the output of the {eval} function will be assigned to this template variable instead of being output to the template.

Attribute Name Type Required Default Description
var mixed Yes n/a Variable (or string) to evaluate
assign string No n/a The template variable the output will be assigned to

Technical Note

  • Evaluated variables are treated the same as templates. They follow the same escapement and security features just as if they were templates.

  • Evaluated variables are compiled on every invocation, the compiled versions are not saved! However if you have caching enabled, the output will be cached with the rest of the template.

  • If the content to evaluate doesn't change often, or is used repeatedly, consider using {include file="string:{$template_code}"} instead. This may cache the compiled state and thus doesn't have to run the (comparably slow) compiler on every invocation.

Example 8.3. {eval}

The contents of the config file, setup.conf.


emphstart = <strong>
emphend = </strong>
title = Welcome to {$company}'s home page!
ErrorCity = You must supply a {#emphstart#}city{#emphend#}.
ErrorState = You must supply a {#emphstart#}state{#emphend#}.

  

Where the template is:


{config_load file='setup.conf'}

{eval var=$foo}
{eval var=#title#}
{eval var=#ErrorCity#}
{eval var=#ErrorState# assign='state_error'}
{$state_error}

  

The above template will output:


This is the contents of foo.
Welcome to Foobar Pub & Grill's home page!
You must supply a <strong>city</strong>.
You must supply a <strong>state</strong>.

  

Example 8.4. Another {eval} example

This outputs the server name (in uppercase) and IP. The assigned variable $str could be from a database query.

 
<?php
$str = 'The server name is {$smarty.server.SERVER_NAME|upper} '
       .'at {$smarty.server.SERVER_ADDR}';
$smarty->assign('foo',$str);
?>
 
   

Where the template is:

 
    {eval var=$foo}
 
   

Comments
No comments for this page.
Post a Comment
All comments are moderated. Support questions are ignored, use the forums instead.
Author:
Email: (not shown)
What is 18 plus 16? (Are you human?)

Sponsors [info]

UK Web Hosting @webhost.uk.net
Best Web Hosting @rshosting.com
Web Hosting UK @webhostinguk.com
Unlimited Web Hosting @infrenion.com
App Entwicklung @morphodo.com
Buy from China @dhgate.com
First Click Internet Marketing @fcinternetmarketing.com