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Embedding Vars in Double Quotes {#language.syntax.quotes}
===============================
- Smarty will recognize [assigned](#api.assign)
[variables](#language.syntax.variables) embedded in \"double
quotes\" so long as the variable name contains only numbers, letters
and under\_scores. See [naming](&url.php-manual;language.variables)
for more detail.
- With any other characters, for example a period(.) or
`$object->reference`, then the variable must be surrounded by
`` `backticks` ``.
- In addition Smarty3 does allow embedded Smarty tags in double quoted
strings. This is useful if you want to include variables with
modifiers, plugin or PHP function results.
<!-- -->
{func var="test $foo test"} // sees $foo
{func var="test $foo_bar test"} // sees $foo_bar
{func var="test `$foo[0]` test"} // sees $foo[0]
{func var="test `$foo[bar]` test"} // sees $foo[bar]
{func var="test $foo.bar test"} // sees $foo (not $foo.bar)
{func var="test `$foo.bar` test"} // sees $foo.bar
{func var="test `$foo.bar` test"|escape} // modifiers outside quotes!
{func var="test {$foo|escape} test"} // modifiers inside quotes!
{func var="test {time()} test"} // PHP function result
{func var="test {counter} test"} // plugin result
{func var="variable foo is {if !$foo}not {/if} defined"} // Smarty block function
{* will replace $tpl_name with value *}
{include file="subdir/$tpl_name.tpl"}
{* does NOT replace $tpl_name *}
{include file='subdir/$tpl_name.tpl'} // vars require double quotes!
{* must have backticks as it contains a dot "." *}
{cycle values="one,two,`$smarty.config.myval`"}
{* must have backticks as it contains a dot "." *}
{include file="`$module.contact`.tpl"}
{* can use variable with dot syntax *}
{include file="`$module.$view`.tpl"}
> **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.
See also [`escape`](#language.modifier.escape).
|
