Assigning Variables to Templates
In Smarty , you assign values to the variables in your PHP file using the 'assign()' method. When the template is rendered, these variables will be replaced with their assigned values.
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Posted on Nov 25, 2021 • Updated on Sep 14, 2022
Php Smarty template - assigning complex content to variables
In some cases Smarty doesn't allow you to assign values to variables just like that. For example in foreach loops. Then the following solutions can work. 1, Assign a simple text with variables:
explanation: Smarty's smart enough to replace value of variable within quotes.
2, Assign special characters or longer text:
explanation: the capture tag allows you to add text without quotes so it's readable. Variables have to be in {}.
3, Do ternary operation and assign value:
explanation: need to be aware of the brackets, but works fine. Normal brackets contain the condition.
Ternary operator concatenate variables with string (if the parentname is set, concatenate variables to a new string)
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- Escaping Smarty parsing
- Combining Modifiers
- Config Files
- Debugging Console
- Template inheritance
- Template resources
Template variables start with the $dollar sign. They can contain numbers, letters and underscores, much like a PHP variable . You can reference arrays by index numerically or non-numerically. Also reference object properties and methods.
Config file variables are an exception to the \$dollar syntax and are instead referenced with surrounding #hashmarks#, or via the $smarty.config variable.
Note Although Smarty can handle some very complex expressions and syntax, it is a good rule of thumb to keep the template syntax minimal and focused on presentation. If you find your template syntax getting too complex, it may be a good idea to move the bits that do not deal explicitly with presentation to PHP by way of plugins or modifiers.
Request variables such as $_GET , $_SESSION , etc are available via the reserved $smarty variable.
See also $smarty , config variables {assign} and assign() .
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{include} tags are used for including other templates in the current template. Any variables available in the current template are also available within the included template.
The {include} tag must have the file attribute which contains the template resource path.
Setting the optional assign attribute specifies the template variable that the output of {include} is assigned to, instead of being displayed. Similar to {assign} .
Variables can be passed to included templates as attributes . Any variables explicitly passed to an included template are only available within the scope of the included file. Attribute variables override current template variables, in the case when they are named the same.
You can use all variables from the including template inside the included template. But changes to variables or new created variables inside the included template have local scope and are not visible inside the including template after the {include} statement. This default behaviour can be changed for all variables assigned in the included template by using the scope attribute at the {include} statement or for individual variables by using the scope attribute at the {assign} statement. The later is useful to return values from the included template to the including template.
Use the syntax for template resources to {include} files outside of the $template_dir directory.
Attributes:
Option Flags:
Example 7.46. Simple {include} example
Example 7.47. {include} passing variables
The template above includes the example links.tpl below
Example 7.48. {include} using parent scope
Variables assigned in the included template will be seen in the including template.
The template above includes the example sub_template.tpl below
Example 7.49. {include} with disabled caching
The included template will not be cached.
Example 7.50. {include} with individual cache lifetime
In this example included template will be cached with an individual cache lifetime of 500 seconds.
Example 7.51. {include} with forced caching
In this example included template will be cached independent of the global cahing setting.
Example 7.52. {include} and assign to variable
This example assigns the contents of nav.tpl to the $navbar variable, which is then output at both the top and bottom of the page.
Example 7.53. {include} with relative paths
This example includes another template relative to the directory of the current template.
Example 7.54. Various {include} resource examples
See also {include_php} , {insert} , {php} , template resources and componentized templates .
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{assign} is used for assigning template variables during the execution of a template . Note Assignment of variables in-template is essentially placing application logic into the presentation that may be better handled in PHP. Use at your own discretion. Note See also the short-form method of assigning template vars. Attributes: Option Flags:
Using $smarty->assign () is the most common way of assigning data to templates, but there are several other methods. Appending data to an existing variable Using append (), you can add data to an existing variable, usually an array. If you append to a string value, it is converted to an array value and then appended to.
Template variables start with the $dollar sign. They can contain numbers, letters and underscores, much like a PHP variable . You can reference arrays by index numerically or non-numerically. Also reference object properties and methods.
assign () — assign variables/objects to the templates Description void assign(mixed var); void assign(string varname, mixed var, bool nocache); You can explicitly pass name/value pairs, or associative arrays containing the name/value pairs. If you pass the optional third nocache parameter of TRUE, the variable is assigned as nocache variable.
Assignment of variables in-template is essentially placing application logic into the presentation that may be better handled in PHP. Use at your own discretion. Examples {assign var="name" value="Bob"} {* or *} {assign "name" "Bob"} {* short-hand, or *} {$name='Bob'} The value of $name is {$name}. The above example will output:
<?php require_once 'path/to/smarty/libs/Smarty.class.php'; ?> Create a new Smarty object and set the necessary directories: <?php $smarty = new Smarty(); $smarty->setTemplateDir('templates/'); $smarty->setCompileDir('templates_c/'); $smarty->setCacheDir('cache/'); $smarty->setConfigDir('configs/'); $smarty->display('index.tpl'); ?>
php templates assign smarty3 Share Improve this question Follow asked Apr 21, 2012 at 23:41 fl3x7 3,763 6 27 37 You can just create your own plugin for smarty that will store in its instance or static variable. - meze Apr 22, 2012 at 1:16 Add a comment 1 Answer Sorted by:
In this tutorial, we covered how to create template-based websites using PHP and Smarty, a powerful template engine that separates the application logic from the presentation layer. We discussed setting up Smarty, creating basic templates, assigning variables, using conditional statements and loops, template inheritance, plugins, and filters ...
Variable scopes. You have the choice to assign variables to the scope of the main Smarty object, data objects created with createData () , and template objects created with createTemplate (). These objects can be chained. A template sees all the variables of its own object and all variables assigned to the objects in its chain of parent objects.
A template sees all the variables of its own object and all variables assigned to the objects in its chain of parent objects. By default templates which are rendered by $smarty->display (...) or $smarty->fetch (...) calls are automatically linked to the Smarty object variable scope.
$form->addElement ('text','my_var', $var ); // dynamically insert a template block in the page $templatePath = realpath (dirname (__FILE__)."/templates"); CRM_Core_Region::instance ('page-body')->add (array ( 'template' => " {$templatePath}/testfield.tpl"
The Resource Handler must then implement the function renderUncompiled(\Smarty\Template $_template). $_template is a reference to the current template and contains all assigned variables which the implementor can access via $_template->getSmarty()->getTemplateVars(). These Resources simply echo their rendered content to the output stream.
explanation: Smarty's smart enough to replace value of variable within quotes. 2, Assign special characters or longer text:
Variables assigned from within a template with the {assign} function are also displayed this way. Example 4.2. Assigned variables php script <?php $smarty = new Smarty (); $smarty->assign ('firstname', 'Doug'); $smarty->assign ('lastname', 'Evans'); $smarty->assign ('meetingPlace', 'New York'); $smarty->display ('index.tpl'); ?>
Although Smarty can handle some very complex expressions and syntax, it is a good rule of thumb to keep the template syntax minimal and focused on presentation. If you find your template syntax getting too complex, it may be a good idea to move the bits that do not deal explicitly with presentation to PHP by way of plugins or modifiers.
you can do {include file=$template_filename} with $template being an assigned variable. this is always much better than {eval var=$template_sourcecode}. with {include} you have templates compiled just once. with eval the sourcecode hase to be compiled on every call. the performance difference is *huge*. Back to top TimJim Smarty Rookie
This works regardless of the debug settings in the php script. Since this gets executed at runtime, this is only able to show the assigned variables; not the templates that are in use. However, you can see all the currently available variables within the scope of a template.
Setting the optional assign attribute specifies the template variable that the output of {include} is assigned to, instead of being displayed. Similar to {assign} . Variables can be passed to included templates as attributes . Any variables explicitly passed to an included template are only available within the scope of the included file.
2 Answers Sorted by: 7 You can't assign a client-side value to a smarty variable, as smarty is a templating language that runs on the server. Smarty assignments can only be done on the server-side, that is to say, from PHP. E.g.: $smarty->assign ('timestamp',time ()); So what you can do is something like: