Embedding Vars in Double Quotes

• Smarty will recognize assigned variables embedded in "double quotes" so long as the variable name contains only numbers, letters and under_scores. See naming for more detail.
• With any other characters, for example a period(.) or `$object->reference`, then the variable must be surrounded by `` `backticks` ``.
• In addition, Smarty 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.

Examples

{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.